TY  - JOUR
AU  - Holclajtner-Antunović, Ivanka D.
AU  - Mioč, Ubavka B.
AU  - Todorović, M.
AU  - Jovanović, Zoran M.
AU  - Davidović, Milorad P.
AU  - Bajuk-Bogdanović, Danica V.
AU  - Laušević, Zoran
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4139
AB  - Potassium salts of 12-tungstophosphoric acid with varying amounts of cation, KxH3 - xPW12O40(x = 1, 2, 3) have been prepared and their characteristics investigated by thermal analyses. FT-IR and micro-Raman spectroscopy and SEM-EDS analysis. It was found that the number of replaced protons by potassium ions in the 12-tungstophosphoric acid structure has influence on the presence of different protonic species, their dynamic equilibrium and on the conductivity of salts. The results reported in this study have been applied to improve the structural model of insoluble acidic salts. It is shown that an acidic potassium salt presents a mixture of neutral salt and unreacted acid. The nature of this mixture depends on the number of replaced protons-oxonium ions by cations. Preliminary measurements with synthesized compounds as solid electrolytes in fuel cells have been done, too. (C) 2010 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Characterization of potassium salts of 12-tungstophosphoric acid
VL  - 45
IS  - 11
SP  - 1679
EP  - 1684
DO  - 10.1016/j.materresbull.2010.06.064
ER  - 

@article{
author = "Holclajtner-Antunović, Ivanka D. and Mioč, Ubavka B. and Todorović, M. and Jovanović, Zoran M. and Davidović, Milorad P. and Bajuk-Bogdanović, Danica V. and Laušević, Zoran",
year = "2010",
abstract = "Potassium salts of 12-tungstophosphoric acid with varying amounts of cation, KxH3 - xPW12O40(x = 1, 2, 3) have been prepared and their characteristics investigated by thermal analyses. FT-IR and micro-Raman spectroscopy and SEM-EDS analysis. It was found that the number of replaced protons by potassium ions in the 12-tungstophosphoric acid structure has influence on the presence of different protonic species, their dynamic equilibrium and on the conductivity of salts. The results reported in this study have been applied to improve the structural model of insoluble acidic salts. It is shown that an acidic potassium salt presents a mixture of neutral salt and unreacted acid. The nature of this mixture depends on the number of replaced protons-oxonium ions by cations. Preliminary measurements with synthesized compounds as solid electrolytes in fuel cells have been done, too. (C) 2010 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Characterization of potassium salts of 12-tungstophosphoric acid",
volume = "45",
number = "11",
pages = "1679-1684",
doi = "10.1016/j.materresbull.2010.06.064"
}

Holclajtner-Antunović, I. D., Mioč, U. B., Todorović, M., Jovanović, Z. M., Davidović, M. P., Bajuk-Bogdanović, D. V.,& Laušević, Z.. (2010). Characterization of potassium salts of 12-tungstophosphoric acid. in Materials Research Bulletin, 45(11), 1679-1684.
https://doi.org/10.1016/j.materresbull.2010.06.064

Holclajtner-Antunović ID, Mioč UB, Todorović M, Jovanović ZM, Davidović MP, Bajuk-Bogdanović DV, Laušević Z. Characterization of potassium salts of 12-tungstophosphoric acid. in Materials Research Bulletin. 2010;45(11):1679-1684.
doi:10.1016/j.materresbull.2010.06.064 .

Holclajtner-Antunović, Ivanka D., Mioč, Ubavka B., Todorović, M., Jovanović, Zoran M., Davidović, Milorad P., Bajuk-Bogdanović, Danica V., Laušević, Zoran, "Characterization of potassium salts of 12-tungstophosphoric acid" in Materials Research Bulletin, 45, no. 11 (2010):1679-1684,
https://doi.org/10.1016/j.materresbull.2010.06.064 . .

TY  - JOUR
AU  - Tančić, Aleksandar R.
AU  - Kutin, M.
AU  - Davidović, Milorad P.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6800
AB  - We investigated the low energy satellites in the Rontgen spectra using the many-particle theory. These satellites are results of the radiative semi-Auger decay of the inner vacancy states. We did not treat only ordinary radiative decay. There exist the excitations of one of the atomic electrons together with the photon emission. We presented results of radiative semi-Auger decays of vacancy states in Ar atom. The knowledge of these processes is important for understanding the same processes in the case of the nanoparticles (molecules, fullerenes, clusters). Research in the field of the new materials requires more sophisticating methods which will open the new possibilities for obtaining materials of particular design, too. The theory which is presented in the paper may be easily generalized in case of particles like fullerenes and clusters.
T2  - Acta Physica Polonica A
T1  - A Method for the Spectroscopic Diagnostic of the Peculiarities of Materials Using the Semi-Auger Effect
VL  - 115
IS  - 4
SP  - 838
EP  - 841
DO  - 10.12693/APhysPolA.115.838
ER  - 

@article{
author = "Tančić, Aleksandar R. and Kutin, M. and Davidović, Milorad P.",
year = "2009",
abstract = "We investigated the low energy satellites in the Rontgen spectra using the many-particle theory. These satellites are results of the radiative semi-Auger decay of the inner vacancy states. We did not treat only ordinary radiative decay. There exist the excitations of one of the atomic electrons together with the photon emission. We presented results of radiative semi-Auger decays of vacancy states in Ar atom. The knowledge of these processes is important for understanding the same processes in the case of the nanoparticles (molecules, fullerenes, clusters). Research in the field of the new materials requires more sophisticating methods which will open the new possibilities for obtaining materials of particular design, too. The theory which is presented in the paper may be easily generalized in case of particles like fullerenes and clusters.",
journal = "Acta Physica Polonica A",
title = "A Method for the Spectroscopic Diagnostic of the Peculiarities of Materials Using the Semi-Auger Effect",
volume = "115",
number = "4",
pages = "838-841",
doi = "10.12693/APhysPolA.115.838"
}

Tančić, A. R., Kutin, M.,& Davidović, M. P.. (2009). A Method for the Spectroscopic Diagnostic of the Peculiarities of Materials Using the Semi-Auger Effect. in Acta Physica Polonica A, 115(4), 838-841.
https://doi.org/10.12693/APhysPolA.115.838

Tančić AR, Kutin M, Davidović MP. A Method for the Spectroscopic Diagnostic of the Peculiarities of Materials Using the Semi-Auger Effect. in Acta Physica Polonica A. 2009;115(4):838-841.
doi:10.12693/APhysPolA.115.838 .

Tančić, Aleksandar R., Kutin, M., Davidović, Milorad P., "A Method for the Spectroscopic Diagnostic of the Peculiarities of Materials Using the Semi-Auger Effect" in Acta Physica Polonica A, 115, no. 4 (2009):838-841,
https://doi.org/10.12693/APhysPolA.115.838 . .

TY  - JOUR
AU  - Mioč, Ubavka B.
AU  - Todorović, MR
AU  - Davidović, Milorad P.
AU  - Colomban, P
AU  - Holclajtner-Antunović, Ivanka D.
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2998
T2  - Solid State Ionics
T1  - Erratum: Heteropoly compounds - From proton conductors to biomedical agents (vol 176, pg 3005, 2005)
VL  - 177
IS  - 5-6
SP  - 623
EP  - 624
DO  - 10.1016/j.ssi.2005.12.018
ER  - 

@article{
author = "Mioč, Ubavka B. and Todorović, MR and Davidović, Milorad P. and Colomban, P and Holclajtner-Antunović, Ivanka D.",
year = "2006",
journal = "Solid State Ionics",
title = "Erratum: Heteropoly compounds - From proton conductors to biomedical agents (vol 176, pg 3005, 2005)",
volume = "177",
number = "5-6",
pages = "623-624",
doi = "10.1016/j.ssi.2005.12.018"
}

Mioč, U. B., Todorović, M., Davidović, M. P., Colomban, P.,& Holclajtner-Antunović, I. D.. (2006). Erratum: Heteropoly compounds - From proton conductors to biomedical agents (vol 176, pg 3005, 2005). in Solid State Ionics, 177(5-6), 623-624.
https://doi.org/10.1016/j.ssi.2005.12.018

Mioč UB, Todorović M, Davidović MP, Colomban P, Holclajtner-Antunović ID. Erratum: Heteropoly compounds - From proton conductors to biomedical agents (vol 176, pg 3005, 2005). in Solid State Ionics. 2006;177(5-6):623-624.
doi:10.1016/j.ssi.2005.12.018 .

Mioč, Ubavka B., Todorović, MR, Davidović, Milorad P., Colomban, P, Holclajtner-Antunović, Ivanka D., "Erratum: Heteropoly compounds - From proton conductors to biomedical agents (vol 176, pg 3005, 2005)" in Solid State Ionics, 177, no. 5-6 (2006):623-624,
https://doi.org/10.1016/j.ssi.2005.12.018 . .

TY  - JOUR
AU  - Tančić, Aleksandar R.
AU  - Davidović, Milorad P.
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6611
AB  - Within the framework of the many-body theory by using the Random Phase Approximation with Exchange (RPAE) method we calculated the frequency dependent polarizability, refractive index, and Verdet coefficient of some atoms. Calculated time-dependent peculiarities of a set of atoms are very significant in the nano-region and might be important for designing new materials.
T2  - Materials Science Forum
T1  - Many-body calculations of dynamic polarizability, reffractive index and verdet coefficient
VL  - 518
SP  - 331
EP  - 336
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6611
ER  - 

@article{
author = "Tančić, Aleksandar R. and Davidović, Milorad P.",
year = "2006",
abstract = "Within the framework of the many-body theory by using the Random Phase Approximation with Exchange (RPAE) method we calculated the frequency dependent polarizability, refractive index, and Verdet coefficient of some atoms. Calculated time-dependent peculiarities of a set of atoms are very significant in the nano-region and might be important for designing new materials.",
journal = "Materials Science Forum",
title = "Many-body calculations of dynamic polarizability, reffractive index and verdet coefficient",
volume = "518",
pages = "331-336",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6611"
}

Tančić, A. R.,& Davidović, M. P.. (2006). Many-body calculations of dynamic polarizability, reffractive index and verdet coefficient. in Materials Science Forum, 518, 331-336.
https://hdl.handle.net/21.15107/rcub_vinar_6611

Tančić AR, Davidović MP. Many-body calculations of dynamic polarizability, reffractive index and verdet coefficient. in Materials Science Forum. 2006;518:331-336.
https://hdl.handle.net/21.15107/rcub_vinar_6611 .

Tančić, Aleksandar R., Davidović, Milorad P., "Many-body calculations of dynamic polarizability, reffractive index and verdet coefficient" in Materials Science Forum, 518 (2006):331-336,
https://hdl.handle.net/21.15107/rcub_vinar_6611 .

TY  - JOUR
AU  - Skipina, B
AU  - Cajkovski, T
AU  - Davidović, Milorad P.
AU  - Cajkovski, D
AU  - Likar-Smiljanic, V
AU  - Mioč, Ubavka B.
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6522
AB  - In our previous work we investigated the conductivity and dielectric relaxation phenomena in heteropoly acids and their salts. In this work, we have studied the conductivity of grains and grain boundaries in compressed powders of 12-tungstophosphoric acid (WPA) salts with univalent and bivalent ions. The method of impedance spectroscopy has been employed in the frequency range from 5 Hz to 500 kHz. We obtained grains and grain boundaries conductivities as well as corresponding activation energies. Grain conductivity in all investigated salts is always higher than the grain boundary conductivity.
T2  - Materials Science Forum
T1  - Conductivity of grains and grain boundaries in polycrystalline heteropoly acid salts
VL  - 494
SP  - 101
EP  - 106
DO  - 10.4028/www.scientific.net/MSF.494.101
ER  - 

@article{
author = "Skipina, B and Cajkovski, T and Davidović, Milorad P. and Cajkovski, D and Likar-Smiljanic, V and Mioč, Ubavka B.",
year = "2005",
abstract = "In our previous work we investigated the conductivity and dielectric relaxation phenomena in heteropoly acids and their salts. In this work, we have studied the conductivity of grains and grain boundaries in compressed powders of 12-tungstophosphoric acid (WPA) salts with univalent and bivalent ions. The method of impedance spectroscopy has been employed in the frequency range from 5 Hz to 500 kHz. We obtained grains and grain boundaries conductivities as well as corresponding activation energies. Grain conductivity in all investigated salts is always higher than the grain boundary conductivity.",
journal = "Materials Science Forum",
title = "Conductivity of grains and grain boundaries in polycrystalline heteropoly acid salts",
volume = "494",
pages = "101-106",
doi = "10.4028/www.scientific.net/MSF.494.101"
}

Skipina, B., Cajkovski, T., Davidović, M. P., Cajkovski, D., Likar-Smiljanic, V.,& Mioč, U. B.. (2005). Conductivity of grains and grain boundaries in polycrystalline heteropoly acid salts. in Materials Science Forum, 494, 101-106.
https://doi.org/10.4028/www.scientific.net/MSF.494.101

Skipina B, Cajkovski T, Davidović MP, Cajkovski D, Likar-Smiljanic V, Mioč UB. Conductivity of grains and grain boundaries in polycrystalline heteropoly acid salts. in Materials Science Forum. 2005;494:101-106.
doi:10.4028/www.scientific.net/MSF.494.101 .

Skipina, B, Cajkovski, T, Davidović, Milorad P., Cajkovski, D, Likar-Smiljanic, V, Mioč, Ubavka B., "Conductivity of grains and grain boundaries in polycrystalline heteropoly acid salts" in Materials Science Forum, 494 (2005):101-106,
https://doi.org/10.4028/www.scientific.net/MSF.494.101 . .

TY  - JOUR
AU  - Tomić, Predrag
AU  - Davidović, Milorad P.
AU  - Batinic, S
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6434
AB  - Crystallization processes for the amorphous metallic alloys Fe-Si-B-Ni and Fe-B-Zr-Cu were investigated, in-situ during Joule-heating by X-rays diffraction technique With simultaneous monitoring of the electrical resistance. We determined the main Structural transitions and crystalline phases formed during heating, and correlated these results to the observed resistance variations. With increasing annealing current, the resistance initially decreased due to stress relaxation, followed by a drop to a minimum value due to massive nucleation and growth of alpha-Fe nannocrystals. Further annealing causes the formation of small fractions of Fe-B, B2Zr or ZrO2, while the resistance increased due to temperature enhancement. In-situ XRD measurements allowed the identification of metastable phases, as the gamma-Fe phase which Occurs at high temperatures. Exothermal peaks observed in the differential scanning calorimetry (DSC) for each alloy corroborate the finings. We also have performed DSC measurements at several heating rates, which allowed determination of the Avrami exponent and crystallization activation energy for each alloy. The obtained activation energies (362 and 301 kJ/mol for Fe-B-Zr-Cu; 323 kJ/mol for Fe-Si-B-Ni) are comparable to the reported values for amorphous iron alloys, while the Avrami exponent values (n = 1.0 or n = 1.2) are consistent with diffusion controlled crystallization processes with nucleation rates close to zero.
T2  - Materials Science Forum
T1  - Crystallization kinetics of Fe-B based amorphous alloys studied in situ by X-ray diffraction and differential scanning calorimetry
VL  - 453-454
SP  - 375
EP  - 380
DO  - 10.4028/www.scientific.net/MSF.453-454.375
ER  - 

@article{
author = "Tomić, Predrag and Davidović, Milorad P. and Batinic, S",
year = "2004",
abstract = "Crystallization processes for the amorphous metallic alloys Fe-Si-B-Ni and Fe-B-Zr-Cu were investigated, in-situ during Joule-heating by X-rays diffraction technique With simultaneous monitoring of the electrical resistance. We determined the main Structural transitions and crystalline phases formed during heating, and correlated these results to the observed resistance variations. With increasing annealing current, the resistance initially decreased due to stress relaxation, followed by a drop to a minimum value due to massive nucleation and growth of alpha-Fe nannocrystals. Further annealing causes the formation of small fractions of Fe-B, B2Zr or ZrO2, while the resistance increased due to temperature enhancement. In-situ XRD measurements allowed the identification of metastable phases, as the gamma-Fe phase which Occurs at high temperatures. Exothermal peaks observed in the differential scanning calorimetry (DSC) for each alloy corroborate the finings. We also have performed DSC measurements at several heating rates, which allowed determination of the Avrami exponent and crystallization activation energy for each alloy. The obtained activation energies (362 and 301 kJ/mol for Fe-B-Zr-Cu; 323 kJ/mol for Fe-Si-B-Ni) are comparable to the reported values for amorphous iron alloys, while the Avrami exponent values (n = 1.0 or n = 1.2) are consistent with diffusion controlled crystallization processes with nucleation rates close to zero.",
journal = "Materials Science Forum",
title = "Crystallization kinetics of Fe-B based amorphous alloys studied in situ by X-ray diffraction and differential scanning calorimetry",
volume = "453-454",
pages = "375-380",
doi = "10.4028/www.scientific.net/MSF.453-454.375"
}

Tomić, P., Davidović, M. P.,& Batinic, S.. (2004). Crystallization kinetics of Fe-B based amorphous alloys studied in situ by X-ray diffraction and differential scanning calorimetry. in Materials Science Forum, 453-454, 375-380.
https://doi.org/10.4028/www.scientific.net/MSF.453-454.375

Tomić P, Davidović MP, Batinic S. Crystallization kinetics of Fe-B based amorphous alloys studied in situ by X-ray diffraction and differential scanning calorimetry. in Materials Science Forum. 2004;453-454:375-380.
doi:10.4028/www.scientific.net/MSF.453-454.375 .

Tomić, Predrag, Davidović, Milorad P., Batinic, S, "Crystallization kinetics of Fe-B based amorphous alloys studied in situ by X-ray diffraction and differential scanning calorimetry" in Materials Science Forum, 453-454 (2004):375-380,
https://doi.org/10.4028/www.scientific.net/MSF.453-454.375 . .

TY  - JOUR
AU  - Tomić, Predrag
AU  - Davidović, Milorad P.
AU  - Kursumovic, A
AU  - Jeremic, M
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6346
AB  - Zr-Ni-Cu-Al is not only one of the best glass forming system, but exhibits also excellent hydrogen absorption properties. In order to understand this behavior more clearly, the properties of closely related ternary systems are of great interest. Only very recently, the hydrogen absorption from the gas phase of Zr-Ni-Al amorphous alloys has been studied in detail by Inoue et al. [I]. Glassy Zr-Cu-Al was prepared by melt spinning. It exhibits a very reasonable thermal stability as observed by DSC. Around 450degreesC, nanocrystallization was observed to lead to an extreme microstructure with a mean grain size of 5 rim. Coarsening and transformation into the stable crystalline phase proceed during further annealing. The kinetics of crystallization was studied by DSC. The influence of hydrogenation on thermal stability and nanocrystallization was studied in detail.
T2  - Materials Science Forum
T1  - Nanocrystallization and hydrogenation of amorphous Zr-Al-Cu alloys
VL  - 413
SP  - 65
EP  - 69
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6346
ER  - 

@article{
author = "Tomić, Predrag and Davidović, Milorad P. and Kursumovic, A and Jeremic, M",
year = "2003",
abstract = "Zr-Ni-Cu-Al is not only one of the best glass forming system, but exhibits also excellent hydrogen absorption properties. In order to understand this behavior more clearly, the properties of closely related ternary systems are of great interest. Only very recently, the hydrogen absorption from the gas phase of Zr-Ni-Al amorphous alloys has been studied in detail by Inoue et al. [I]. Glassy Zr-Cu-Al was prepared by melt spinning. It exhibits a very reasonable thermal stability as observed by DSC. Around 450degreesC, nanocrystallization was observed to lead to an extreme microstructure with a mean grain size of 5 rim. Coarsening and transformation into the stable crystalline phase proceed during further annealing. The kinetics of crystallization was studied by DSC. The influence of hydrogenation on thermal stability and nanocrystallization was studied in detail.",
journal = "Materials Science Forum",
title = "Nanocrystallization and hydrogenation of amorphous Zr-Al-Cu alloys",
volume = "413",
pages = "65-69",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6346"
}

Tomić, P., Davidović, M. P., Kursumovic, A.,& Jeremic, M.. (2003). Nanocrystallization and hydrogenation of amorphous Zr-Al-Cu alloys. in Materials Science Forum, 413, 65-69.
https://hdl.handle.net/21.15107/rcub_vinar_6346

Tomić P, Davidović MP, Kursumovic A, Jeremic M. Nanocrystallization and hydrogenation of amorphous Zr-Al-Cu alloys. in Materials Science Forum. 2003;413:65-69.
https://hdl.handle.net/21.15107/rcub_vinar_6346 .

Tomić, Predrag, Davidović, Milorad P., Kursumovic, A, Jeremic, M, "Nanocrystallization and hydrogenation of amorphous Zr-Al-Cu alloys" in Materials Science Forum, 413 (2003):65-69,
https://hdl.handle.net/21.15107/rcub_vinar_6346 .

TY  - JOUR
AU  - Mioč, Ubavka B.
AU  - Todorovic, MR
AU  - Uskoković-Marković, SM
AU  - Davidović, Milorad P.
AU  - Kremenović, Aleksandar S.
AU  - Spasojević-de Bire, Anne
AU  - Cajkovski, T
AU  - Likar-Smiljanic, V
AU  - Biljic, R
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6384
AB  - Some structural properties of a magnesium salt of 12-tungstophosphoric acid, MgHPW12O40.nH(2)O (MgHVvTA-n), are reported. The influence of the Mg2+ ion on the structure, dynamics of the protonic species, and dielectric and conductive characteristics of the salt have been studied. The interaction of protonic species with Keggin anion was discussed. Preliminary results of the crystal structure indicate that the structure is composed of Keggin anions and Mg(OH2)(6) aqua-complexes. Some comparisons are made with other alkaline-earth and alkaline salts of WPA. The results of thermal analysis (TGA and DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), infrared spectroscopy (IR), conductivity and permittivity measurements of MgHWPA-n are reported and discussed. (C) 2003 Elsevier B.V. All rights reserved.
T2  - Solid State Ionics
T1  - Structure and proton conductivity in a magnesium salt of 12-tungstophosphoric acid
VL  - 162
SP  - 217
EP  - 223
DO  - 10.1016/S0167-2738(03)00257-1
ER  - 

@article{
author = "Mioč, Ubavka B. and Todorovic, MR and Uskoković-Marković, SM and Davidović, Milorad P. and Kremenović, Aleksandar S. and Spasojević-de Bire, Anne and Cajkovski, T and Likar-Smiljanic, V and Biljic, R",
year = "2003",
abstract = "Some structural properties of a magnesium salt of 12-tungstophosphoric acid, MgHPW12O40.nH(2)O (MgHVvTA-n), are reported. The influence of the Mg2+ ion on the structure, dynamics of the protonic species, and dielectric and conductive characteristics of the salt have been studied. The interaction of protonic species with Keggin anion was discussed. Preliminary results of the crystal structure indicate that the structure is composed of Keggin anions and Mg(OH2)(6) aqua-complexes. Some comparisons are made with other alkaline-earth and alkaline salts of WPA. The results of thermal analysis (TGA and DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), infrared spectroscopy (IR), conductivity and permittivity measurements of MgHWPA-n are reported and discussed. (C) 2003 Elsevier B.V. All rights reserved.",
journal = "Solid State Ionics",
title = "Structure and proton conductivity in a magnesium salt of 12-tungstophosphoric acid",
volume = "162",
pages = "217-223",
doi = "10.1016/S0167-2738(03)00257-1"
}

Mioč, U. B., Todorovic, M., Uskoković-Marković, S., Davidović, M. P., Kremenović, A. S., Spasojević-de Bire, A., Cajkovski, T., Likar-Smiljanic, V.,& Biljic, R.. (2003). Structure and proton conductivity in a magnesium salt of 12-tungstophosphoric acid. in Solid State Ionics, 162, 217-223.
https://doi.org/10.1016/S0167-2738(03)00257-1

Mioč UB, Todorovic M, Uskoković-Marković S, Davidović MP, Kremenović AS, Spasojević-de Bire A, Cajkovski T, Likar-Smiljanic V, Biljic R. Structure and proton conductivity in a magnesium salt of 12-tungstophosphoric acid. in Solid State Ionics. 2003;162:217-223.
doi:10.1016/S0167-2738(03)00257-1 .

Mioč, Ubavka B., Todorovic, MR, Uskoković-Marković, SM, Davidović, Milorad P., Kremenović, Aleksandar S., Spasojević-de Bire, Anne, Cajkovski, T, Likar-Smiljanic, V, Biljic, R, "Structure and proton conductivity in a magnesium salt of 12-tungstophosphoric acid" in Solid State Ionics, 162 (2003):217-223,
https://doi.org/10.1016/S0167-2738(03)00257-1 . .

TY  - JOUR
AU  - Cajkovski, T
AU  - Davidović, Milorad P.
AU  - Cajkovski, D
AU  - Likar-Smiljanic, V
AU  - Biljic, R
AU  - Mioč, Ubavka B.
AU  - Todorović, M
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6349
AB  - The main aim of this paper is to investigate the effects of gamma-irradiation on dielectric properties of barium salt of 12-tungstophosphoric acid (WPA) hydrate BaHPW12O40-7H(2)O (BaHWPA(.)7). Irradiation was carried out with two doses. Permittivity measurements have been performed in microwave X-band, at room temperature. After the irradiation (the absorbed dose 940 kGy) visible effect is the slight yellow color of the specimen and both real part epsilon and imaginary p I art epsilon of permittivity curves are shifted along the frequency axis. By measuring permittivity several days in succession gradual recovery of the specimen was observed. After five days epsilon and epsilon curves returned to their initial values on the frequency axis, and the color also disappeared. The second irradiation of the same specimen (1880 kGy) resulted in somewhat larger shift of epsilon and epsilon towards lower frequencies. This time, with larger absorbed dose there was no recovery effect and no-coloration. IR spectra of unirradiated and irradiated specimens were recorded and obtained data used for explanation of the observed phenomena.
T2  - Materials Science Forum
T1  - Effects of gamma-irradiation on the dielectric properties of the barium salt of 12-tungstophosphoric acid hydrate
VL  - 413
SP  - 141
EP  - 145
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6349
ER  - 

@article{
author = "Cajkovski, T and Davidović, Milorad P. and Cajkovski, D and Likar-Smiljanic, V and Biljic, R and Mioč, Ubavka B. and Todorović, M",
year = "2003",
abstract = "The main aim of this paper is to investigate the effects of gamma-irradiation on dielectric properties of barium salt of 12-tungstophosphoric acid (WPA) hydrate BaHPW12O40-7H(2)O (BaHWPA(.)7). Irradiation was carried out with two doses. Permittivity measurements have been performed in microwave X-band, at room temperature. After the irradiation (the absorbed dose 940 kGy) visible effect is the slight yellow color of the specimen and both real part epsilon and imaginary p I art epsilon of permittivity curves are shifted along the frequency axis. By measuring permittivity several days in succession gradual recovery of the specimen was observed. After five days epsilon and epsilon curves returned to their initial values on the frequency axis, and the color also disappeared. The second irradiation of the same specimen (1880 kGy) resulted in somewhat larger shift of epsilon and epsilon towards lower frequencies. This time, with larger absorbed dose there was no recovery effect and no-coloration. IR spectra of unirradiated and irradiated specimens were recorded and obtained data used for explanation of the observed phenomena.",
journal = "Materials Science Forum",
title = "Effects of gamma-irradiation on the dielectric properties of the barium salt of 12-tungstophosphoric acid hydrate",
volume = "413",
pages = "141-145",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6349"
}

Cajkovski, T., Davidović, M. P., Cajkovski, D., Likar-Smiljanic, V., Biljic, R., Mioč, U. B.,& Todorović, M.. (2003). Effects of gamma-irradiation on the dielectric properties of the barium salt of 12-tungstophosphoric acid hydrate. in Materials Science Forum, 413, 141-145.
https://hdl.handle.net/21.15107/rcub_vinar_6349

Cajkovski T, Davidović MP, Cajkovski D, Likar-Smiljanic V, Biljic R, Mioč UB, Todorović M. Effects of gamma-irradiation on the dielectric properties of the barium salt of 12-tungstophosphoric acid hydrate. in Materials Science Forum. 2003;413:141-145.
https://hdl.handle.net/21.15107/rcub_vinar_6349 .

Cajkovski, T, Davidović, Milorad P., Cajkovski, D, Likar-Smiljanic, V, Biljic, R, Mioč, Ubavka B., Todorović, M, "Effects of gamma-irradiation on the dielectric properties of the barium salt of 12-tungstophosphoric acid hydrate" in Materials Science Forum, 413 (2003):141-145,
https://hdl.handle.net/21.15107/rcub_vinar_6349 .

TY  - JOUR
AU  - Kremenović, Aleksandar S.
AU  - Bire, AS
AU  - Bouree, F
AU  - Colomban, P
AU  - Dimitrijevic, R
AU  - Davidović, Milorad P.
AU  - Mioč, Ubavka B.
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2550
AB  - Dodecatungstophosphoric acid hexahydrate H3PW12O40.6H(2)O crystal structure has been investigated by neutron powder diffraction (NPD) at different temperatures in the 10-358 K range. A nonconvergent reversible phase transition has been noticed at about 320 K. This transition is associated with a change in dynamic equilibrium of hydrate species and partial reduction/oxidation (redox) W6+ LT ---- GT (5+). Expressive structure changes lie in the P-O bonding inside Keggins anion and the H5O2+ conformational angle. (C) 2002 Published by Elsevier Science B.V.
T2  - Solid State Ionics
T1  - Structural modifications of dodecatungstophosphoric acid hexahydrate induced by temperature in the 10-358 K range. In situ high-resolution neutron powder diffraction investigation
VL  - 150
IS  - 3-4
SP  - 431
EP  - 442
DO  - 10.1016/S0167-2738(02)00419-8
ER  - 

@article{
author = "Kremenović, Aleksandar S. and Bire, AS and Bouree, F and Colomban, P and Dimitrijevic, R and Davidović, Milorad P. and Mioč, Ubavka B.",
year = "2002",
abstract = "Dodecatungstophosphoric acid hexahydrate H3PW12O40.6H(2)O crystal structure has been investigated by neutron powder diffraction (NPD) at different temperatures in the 10-358 K range. A nonconvergent reversible phase transition has been noticed at about 320 K. This transition is associated with a change in dynamic equilibrium of hydrate species and partial reduction/oxidation (redox) W6+ LT ---- GT (5+). Expressive structure changes lie in the P-O bonding inside Keggins anion and the H5O2+ conformational angle. (C) 2002 Published by Elsevier Science B.V.",
journal = "Solid State Ionics",
title = "Structural modifications of dodecatungstophosphoric acid hexahydrate induced by temperature in the 10-358 K range. In situ high-resolution neutron powder diffraction investigation",
volume = "150",
number = "3-4",
pages = "431-442",
doi = "10.1016/S0167-2738(02)00419-8"
}

Kremenović, A. S., Bire, A., Bouree, F., Colomban, P., Dimitrijevic, R., Davidović, M. P.,& Mioč, U. B.. (2002). Structural modifications of dodecatungstophosphoric acid hexahydrate induced by temperature in the 10-358 K range. In situ high-resolution neutron powder diffraction investigation. in Solid State Ionics, 150(3-4), 431-442.
https://doi.org/10.1016/S0167-2738(02)00419-8

Kremenović AS, Bire A, Bouree F, Colomban P, Dimitrijevic R, Davidović MP, Mioč UB. Structural modifications of dodecatungstophosphoric acid hexahydrate induced by temperature in the 10-358 K range. In situ high-resolution neutron powder diffraction investigation. in Solid State Ionics. 2002;150(3-4):431-442.
doi:10.1016/S0167-2738(02)00419-8 .

Kremenović, Aleksandar S., Bire, AS, Bouree, F, Colomban, P, Dimitrijevic, R, Davidović, Milorad P., Mioč, Ubavka B., "Structural modifications of dodecatungstophosphoric acid hexahydrate induced by temperature in the 10-358 K range. In situ high-resolution neutron powder diffraction investigation" in Solid State Ionics, 150, no. 3-4 (2002):431-442,
https://doi.org/10.1016/S0167-2738(02)00419-8 . .

TY  - JOUR
AU  - Tomić, Predrag
AU  - Davidović, Milorad P.
PY  - 2000
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6315
AB  - Using DSC, we have studied the crystallization kinetics of Ni-P metallic glasses By the Transmission electron microscopy (TEM) image, we have determined the condition of early nucleation saturation in the NI-P crystallization processes and from this the growth activation energy has be determined. According to the Arrhenius equation, the apparent activation energy in the small transformation range can be calculated. By extrapolation we have obtained the activation energy for nucleation (E-n) and growth (E-g). Based on this, the change relation between proportions of nucleation, growth in crystallization and various transformation fraction has been calculated.
T2  - Materials Science Forum
T1  - Determination of the activation energy of nucleation and grain growth in Ni-P metallic glass
VL  - 352
SP  - 267
EP  - 270
DO  - 10.4028/www.scientific.net/MSF.352.267
ER  - 

@article{
author = "Tomić, Predrag and Davidović, Milorad P.",
year = "2000",
abstract = "Using DSC, we have studied the crystallization kinetics of Ni-P metallic glasses By the Transmission electron microscopy (TEM) image, we have determined the condition of early nucleation saturation in the NI-P crystallization processes and from this the growth activation energy has be determined. According to the Arrhenius equation, the apparent activation energy in the small transformation range can be calculated. By extrapolation we have obtained the activation energy for nucleation (E-n) and growth (E-g). Based on this, the change relation between proportions of nucleation, growth in crystallization and various transformation fraction has been calculated.",
journal = "Materials Science Forum",
title = "Determination of the activation energy of nucleation and grain growth in Ni-P metallic glass",
volume = "352",
pages = "267-270",
doi = "10.4028/www.scientific.net/MSF.352.267"
}

Tomić, P.,& Davidović, M. P.. (2000). Determination of the activation energy of nucleation and grain growth in Ni-P metallic glass. in Materials Science Forum, 352, 267-270.
https://doi.org/10.4028/www.scientific.net/MSF.352.267

Tomić P, Davidović MP. Determination of the activation energy of nucleation and grain growth in Ni-P metallic glass. in Materials Science Forum. 2000;352:267-270.
doi:10.4028/www.scientific.net/MSF.352.267 .

Tomić, Predrag, Davidović, Milorad P., "Determination of the activation energy of nucleation and grain growth in Ni-P metallic glass" in Materials Science Forum, 352 (2000):267-270,
https://doi.org/10.4028/www.scientific.net/MSF.352.267 . .

TY  - JOUR
AU  - Cajkovski, T
AU  - Davidović, Milorad P.
AU  - Cajkovski, D
AU  - Likar-Smiljanic, V
AU  - Biljic, R
AU  - Mioč, Ubavka B.
AU  - Nedić, Zoran
PY  - 2000
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6312
AB  - Complex permittivity of 12-tungstophosphoric acid hexahydrate (H3PW12O40 6H(2)O), 6-WPA has been measured at microwave frequencies (X-band) in the temperature interval from 296 K to 350 K. From 296 K to 328 K 6-WPA displays dipolar relaxation of the Debye type at the frequency f(1)=9.30 GHz which corresponds to the relaxation time tau (1)=1.7x10(11) s. From 328 K to 350 K large changes of epsilon (f) and epsilon (f) take place. Two additional relaxations appear at frequencies f(2)=8.25 GHz and f(3)=10.80 GHz. These additional relaxations could be due to protonic entities that become excited at higher temperatures. An assignation of these relaxations to specific proton entities is proposed.
T2  - Materials Science Forum
T1  - Temperature dependence of dielectric relaxation in 12-tungstophosphoric acid hexahydrate at microwave frequencies
VL  - 352
SP  - 251
EP  - 254
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6312
ER  - 

@article{
author = "Cajkovski, T and Davidović, Milorad P. and Cajkovski, D and Likar-Smiljanic, V and Biljic, R and Mioč, Ubavka B. and Nedić, Zoran",
year = "2000",
abstract = "Complex permittivity of 12-tungstophosphoric acid hexahydrate (H3PW12O40 6H(2)O), 6-WPA has been measured at microwave frequencies (X-band) in the temperature interval from 296 K to 350 K. From 296 K to 328 K 6-WPA displays dipolar relaxation of the Debye type at the frequency f(1)=9.30 GHz which corresponds to the relaxation time tau (1)=1.7x10(11) s. From 328 K to 350 K large changes of epsilon (f) and epsilon (f) take place. Two additional relaxations appear at frequencies f(2)=8.25 GHz and f(3)=10.80 GHz. These additional relaxations could be due to protonic entities that become excited at higher temperatures. An assignation of these relaxations to specific proton entities is proposed.",
journal = "Materials Science Forum",
title = "Temperature dependence of dielectric relaxation in 12-tungstophosphoric acid hexahydrate at microwave frequencies",
volume = "352",
pages = "251-254",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6312"
}

Cajkovski, T., Davidović, M. P., Cajkovski, D., Likar-Smiljanic, V., Biljic, R., Mioč, U. B.,& Nedić, Z.. (2000). Temperature dependence of dielectric relaxation in 12-tungstophosphoric acid hexahydrate at microwave frequencies. in Materials Science Forum, 352, 251-254.
https://hdl.handle.net/21.15107/rcub_vinar_6312

Cajkovski T, Davidović MP, Cajkovski D, Likar-Smiljanic V, Biljic R, Mioč UB, Nedić Z. Temperature dependence of dielectric relaxation in 12-tungstophosphoric acid hexahydrate at microwave frequencies. in Materials Science Forum. 2000;352:251-254.
https://hdl.handle.net/21.15107/rcub_vinar_6312 .

Cajkovski, T, Davidović, Milorad P., Cajkovski, D, Likar-Smiljanic, V, Biljic, R, Mioč, Ubavka B., Nedić, Zoran, "Temperature dependence of dielectric relaxation in 12-tungstophosphoric acid hexahydrate at microwave frequencies" in Materials Science Forum, 352 (2000):251-254,
https://hdl.handle.net/21.15107/rcub_vinar_6312 .

TY  - JOUR
AU  - Vejnović, Zdravko
AU  - Pavlović, Miloš B.
AU  - Davidović, Milorad P.
PY  - 1999
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2225
AB  - A new glow curve fitting method using the Gauss-Lorentz asymmetric function is suggested. By calculating the thermoluminescence (TL) parameters it is shown that this is compatible with a general-order kinetics model. The relations between TL parameters and fitting function parameters are determined. The new fitting method is tested by computer simulated glow curves. The coefficients of Chens interpolation-extrapolation formula for calculation of TL parameters are presented in an analytical form. It is shown that the Chen method is a special case of the integral method of TL parameter calculation.
T2  - Journal of Physics. D: Applied Physics
T1  - Fitting the glow curve and calculating TL parameters
VL  - 32
IS  - 1
SP  - 72
EP  - 78
DO  - 10.1088/0022-3727/32/1/012
ER  - 

@article{
author = "Vejnović, Zdravko and Pavlović, Miloš B. and Davidović, Milorad P.",
year = "1999",
abstract = "A new glow curve fitting method using the Gauss-Lorentz asymmetric function is suggested. By calculating the thermoluminescence (TL) parameters it is shown that this is compatible with a general-order kinetics model. The relations between TL parameters and fitting function parameters are determined. The new fitting method is tested by computer simulated glow curves. The coefficients of Chens interpolation-extrapolation formula for calculation of TL parameters are presented in an analytical form. It is shown that the Chen method is a special case of the integral method of TL parameter calculation.",
journal = "Journal of Physics. D: Applied Physics",
title = "Fitting the glow curve and calculating TL parameters",
volume = "32",
number = "1",
pages = "72-78",
doi = "10.1088/0022-3727/32/1/012"
}

Vejnović, Z., Pavlović, M. B.,& Davidović, M. P.. (1999). Fitting the glow curve and calculating TL parameters. in Journal of Physics. D: Applied Physics, 32(1), 72-78.
https://doi.org/10.1088/0022-3727/32/1/012

Vejnović Z, Pavlović MB, Davidović MP. Fitting the glow curve and calculating TL parameters. in Journal of Physics. D: Applied Physics. 1999;32(1):72-78.
doi:10.1088/0022-3727/32/1/012 .

Vejnović, Zdravko, Pavlović, Miloš B., Davidović, Milorad P., "Fitting the glow curve and calculating TL parameters" in Journal of Physics. D: Applied Physics, 32, no. 1 (1999):72-78,
https://doi.org/10.1088/0022-3727/32/1/012 . .

TY  - JOUR
AU  - Čajkovski, Tamara
AU  - Davidović, Milorad P.
AU  - Čajkovski, D.
AU  - Likar-Smiljanić, Vladana D.
AU  - Biljić, Radivoje M.
AU  - Mioč, Ubavka B.
AU  - Stamenković, Vojislav R.
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2180
AB  - Heteropolyacids hydrates as superionic conductors have been intensely investigated during the last fifteen years. By using various experimental techniques such as IR and Raman spectroscopy, neutron scattering, impedance measurements, X-ray diffraction and others, informations have been obtained on the properties of protonic entities and conductivity mechanisms. The salts of heteropolyacids have been less investigated although there is a steady growth of activities in this field too. In this work the results of permittivity measurements are presented on copper and calcium salts of 12-tungstophosphoric acid hydrates (CuHPW12O40. 15H(2)O and CaHPW12O40. 13H(2)O). Measurements have been done in the region of microwaves, at room temperature and in a room ambient. The aim of this work was to study the influence of copper and calcium ions on dielectric relaxation processes in these salts. Dielectric relaxations have been found for both salts. Contributions of fast reorientations of H2O molecules and oxonium ions (H3O+) to these relaxations are discussed as well as, their influence on dynamic conductivity.
T2  - Solid State Phenomena
T1  - Dielectric properties of metal salts of heteropolyacid hydrates
VL  - 61-2
SP  - 279
EP  - 283
DO  - 10.4028/www.scientific.net/ssp.61-62.279
UR  - https://hdl.handle.net/21.15107/rcub_vinar_2180
ER  - 

@article{
author = "Čajkovski, Tamara and Davidović, Milorad P. and Čajkovski, D. and Likar-Smiljanić, Vladana D. and Biljić, Radivoje M. and Mioč, Ubavka B. and Stamenković, Vojislav R.",
year = "1998",
abstract = "Heteropolyacids hydrates as superionic conductors have been intensely investigated during the last fifteen years. By using various experimental techniques such as IR and Raman spectroscopy, neutron scattering, impedance measurements, X-ray diffraction and others, informations have been obtained on the properties of protonic entities and conductivity mechanisms. The salts of heteropolyacids have been less investigated although there is a steady growth of activities in this field too. In this work the results of permittivity measurements are presented on copper and calcium salts of 12-tungstophosphoric acid hydrates (CuHPW12O40. 15H(2)O and CaHPW12O40. 13H(2)O). Measurements have been done in the region of microwaves, at room temperature and in a room ambient. The aim of this work was to study the influence of copper and calcium ions on dielectric relaxation processes in these salts. Dielectric relaxations have been found for both salts. Contributions of fast reorientations of H2O molecules and oxonium ions (H3O+) to these relaxations are discussed as well as, their influence on dynamic conductivity.",
journal = "Solid State Phenomena",
title = "Dielectric properties of metal salts of heteropolyacid hydrates",
volume = "61-2",
pages = "279-283",
doi = "10.4028/www.scientific.net/ssp.61-62.279",
url = "https://hdl.handle.net/21.15107/rcub_vinar_2180"
}

Čajkovski, T., Davidović, M. P., Čajkovski, D., Likar-Smiljanić, V. D., Biljić, R. M., Mioč, U. B.,& Stamenković, V. R.. (1998). Dielectric properties of metal salts of heteropolyacid hydrates. in Solid State Phenomena, 61-2, 279-283.
https://doi.org/10.4028/www.scientific.net/ssp.61-62.279
https://hdl.handle.net/21.15107/rcub_vinar_2180

Čajkovski T, Davidović MP, Čajkovski D, Likar-Smiljanić VD, Biljić RM, Mioč UB, Stamenković VR. Dielectric properties of metal salts of heteropolyacid hydrates. in Solid State Phenomena. 1998;61-2:279-283.
doi:10.4028/www.scientific.net/ssp.61-62.279
https://hdl.handle.net/21.15107/rcub_vinar_2180 .

Čajkovski, Tamara, Davidović, Milorad P., Čajkovski, D., Likar-Smiljanić, Vladana D., Biljić, Radivoje M., Mioč, Ubavka B., Stamenković, Vojislav R., "Dielectric properties of metal salts of heteropolyacid hydrates" in Solid State Phenomena, 61-2 (1998):279-283,
https://doi.org/10.4028/www.scientific.net/ssp.61-62.279 .,
https://hdl.handle.net/21.15107/rcub_vinar_2180 .

TY  - JOUR
AU  - Radojević, Biljana B.
AU  - Chattopadhyay, K
AU  - Bhattacharya, P
AU  - Davidović, Milorad P.
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2171
AB  - The alloys Zr-Cu-Ti and Zr-Cu have been prepared by melt-spinning and mechanical alloying techniques. Their thermal behaviour and structure factors have been investigated. Thermal properties obtained by differential scanning calorimetry, of an amorphous alloy (54Zr34Cu10Ti), were tested in argon and nitrogen atmospheres. It was shown that crystallization (devitrification) proceeds through five different stages within the temperature range 565 to 976 K. Particular attention is paid to a discussion of the crystallization process of each stage in correlation with the results obtained by X-ray analysis.
T2  - Solid State Phenomena
T1  - On the stability and structure of Zr-Cu and Zr-Ti-Cu alloys
VL  - 61-2
SP  - 109
EP  - 113
DO  - 10.4028/www.scientific.net/SSP.61-62.109
ER  - 

@article{
author = "Radojević, Biljana B. and Chattopadhyay, K and Bhattacharya, P and Davidović, Milorad P.",
year = "1998",
abstract = "The alloys Zr-Cu-Ti and Zr-Cu have been prepared by melt-spinning and mechanical alloying techniques. Their thermal behaviour and structure factors have been investigated. Thermal properties obtained by differential scanning calorimetry, of an amorphous alloy (54Zr34Cu10Ti), were tested in argon and nitrogen atmospheres. It was shown that crystallization (devitrification) proceeds through five different stages within the temperature range 565 to 976 K. Particular attention is paid to a discussion of the crystallization process of each stage in correlation with the results obtained by X-ray analysis.",
journal = "Solid State Phenomena",
title = "On the stability and structure of Zr-Cu and Zr-Ti-Cu alloys",
volume = "61-2",
pages = "109-113",
doi = "10.4028/www.scientific.net/SSP.61-62.109"
}

Radojević, B. B., Chattopadhyay, K., Bhattacharya, P.,& Davidović, M. P.. (1998). On the stability and structure of Zr-Cu and Zr-Ti-Cu alloys. in Solid State Phenomena, 61-2, 109-113.
https://doi.org/10.4028/www.scientific.net/SSP.61-62.109

Radojević BB, Chattopadhyay K, Bhattacharya P, Davidović MP. On the stability and structure of Zr-Cu and Zr-Ti-Cu alloys. in Solid State Phenomena. 1998;61-2:109-113.
doi:10.4028/www.scientific.net/SSP.61-62.109 .

Radojević, Biljana B., Chattopadhyay, K, Bhattacharya, P, Davidović, Milorad P., "On the stability and structure of Zr-Cu and Zr-Ti-Cu alloys" in Solid State Phenomena, 61-2 (1998):109-113,
https://doi.org/10.4028/www.scientific.net/SSP.61-62.109 . .

TY  - JOUR
AU  - Radojević, Biljana B.
AU  - Perng, TP
AU  - Davidović, Milorad P.
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6242
AB  - By liquid quenching technique, for instance, alloys of early transition metals (Zr, Nb, Ti, Ta) and late transition metals (Fe, Co, Ni, Cu, Pd) can be quenched rapidly from the melt to form glasses. These systems form glasses of near deep eutectic composition. Various amorphous alloys can be formed from Ti-Ni. In this study, the synthesis of rapidly solidified Ti-27%Ni alloy was conducted by melt spinning technique. Differential scanning calorimetry (DSC) measurements were made using a Perkin-Elmer DSC-2C under flowing argon, in the interval 323-873 K. Crystallization temperatures T-x of 761.26 K, 773.42 K, and 782.72 K, were obtained at heating rates 10 K/min, 25 K/min, 40 K/min respectively. The XRD patterns were obtained using a Rigaku D/max-IIB, X-ray diffractometer with Cu K-alpha radiation.
T2  - Materials Science Forum
T1  - The study of crystallization processes of TiNi ribbon
VL  - 282-2
SP  - 41
EP  - 46
DO  - 10.4028/www.scientific.net/MSF.282-283.41
ER  - 

@article{
author = "Radojević, Biljana B. and Perng, TP and Davidović, Milorad P.",
year = "1998",
abstract = "By liquid quenching technique, for instance, alloys of early transition metals (Zr, Nb, Ti, Ta) and late transition metals (Fe, Co, Ni, Cu, Pd) can be quenched rapidly from the melt to form glasses. These systems form glasses of near deep eutectic composition. Various amorphous alloys can be formed from Ti-Ni. In this study, the synthesis of rapidly solidified Ti-27%Ni alloy was conducted by melt spinning technique. Differential scanning calorimetry (DSC) measurements were made using a Perkin-Elmer DSC-2C under flowing argon, in the interval 323-873 K. Crystallization temperatures T-x of 761.26 K, 773.42 K, and 782.72 K, were obtained at heating rates 10 K/min, 25 K/min, 40 K/min respectively. The XRD patterns were obtained using a Rigaku D/max-IIB, X-ray diffractometer with Cu K-alpha radiation.",
journal = "Materials Science Forum",
title = "The study of crystallization processes of TiNi ribbon",
volume = "282-2",
pages = "41-46",
doi = "10.4028/www.scientific.net/MSF.282-283.41"
}

Radojević, B. B., Perng, T.,& Davidović, M. P.. (1998). The study of crystallization processes of TiNi ribbon. in Materials Science Forum, 282-2, 41-46.
https://doi.org/10.4028/www.scientific.net/MSF.282-283.41

Radojević BB, Perng T, Davidović MP. The study of crystallization processes of TiNi ribbon. in Materials Science Forum. 1998;282-2:41-46.
doi:10.4028/www.scientific.net/MSF.282-283.41 .

Radojević, Biljana B., Perng, TP, Davidović, Milorad P., "The study of crystallization processes of TiNi ribbon" in Materials Science Forum, 282-2 (1998):41-46,
https://doi.org/10.4028/www.scientific.net/MSF.282-283.41 . .

TY  - JOUR
AU  - Tomić, Predrag
AU  - Davidović, Milorad P.
AU  - Arsenijević, B
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6241
AB  - Very inherent metastable character of amorphous metal alloys, induces structure phase transformations which manifest themselves in thermally activated relaxation processes. The kinetics of these processes can be interpreted with the aid of two models: two equilibrium states and spectrum of activation energies. Structure relaxation of amorphous Fe40Ni40B20 metallic glass has been observed by measuring changes in electrical resistivity at corresponding isothermal treatments. Electrical resistance changes have been measured at liquid nitrogen temperature (78 K) using the d.c. method and a fixed probe. By measuring the resistivity change during isothermal treatment, logarithmic kinetics has been observed. Also, Q(E) function has been derived having a symmetric distribution around the value of activation energy of 2.1 eV, determined by some other methods too.
T2  - Materials Science Forum
T1  - Determination of activation energy spectrum for Fe40Ni40B20 metallic glasses
VL  - 282-2
SP  - 33
EP  - 36
DO  - 10.4028/www.scientific.net/MSF.282-283.33
ER  - 

@article{
author = "Tomić, Predrag and Davidović, Milorad P. and Arsenijević, B",
year = "1998",
abstract = "Very inherent metastable character of amorphous metal alloys, induces structure phase transformations which manifest themselves in thermally activated relaxation processes. The kinetics of these processes can be interpreted with the aid of two models: two equilibrium states and spectrum of activation energies. Structure relaxation of amorphous Fe40Ni40B20 metallic glass has been observed by measuring changes in electrical resistivity at corresponding isothermal treatments. Electrical resistance changes have been measured at liquid nitrogen temperature (78 K) using the d.c. method and a fixed probe. By measuring the resistivity change during isothermal treatment, logarithmic kinetics has been observed. Also, Q(E) function has been derived having a symmetric distribution around the value of activation energy of 2.1 eV, determined by some other methods too.",
journal = "Materials Science Forum",
title = "Determination of activation energy spectrum for Fe40Ni40B20 metallic glasses",
volume = "282-2",
pages = "33-36",
doi = "10.4028/www.scientific.net/MSF.282-283.33"
}

Tomić, P., Davidović, M. P.,& Arsenijević, B.. (1998). Determination of activation energy spectrum for Fe40Ni40B20 metallic glasses. in Materials Science Forum, 282-2, 33-36.
https://doi.org/10.4028/www.scientific.net/MSF.282-283.33

Tomić P, Davidović MP, Arsenijević B. Determination of activation energy spectrum for Fe40Ni40B20 metallic glasses. in Materials Science Forum. 1998;282-2:33-36.
doi:10.4028/www.scientific.net/MSF.282-283.33 .

Tomić, Predrag, Davidović, Milorad P., Arsenijević, B, "Determination of activation energy spectrum for Fe40Ni40B20 metallic glasses" in Materials Science Forum, 282-2 (1998):33-36,
https://doi.org/10.4028/www.scientific.net/MSF.282-283.33 . .

TY  - JOUR
AU  - Cajkovski, T
AU  - Davidović, Milorad P.
AU  - Cajkovski, D
AU  - Likar-Smiljanic, V
AU  - Biljic, R
AU  - Mioč, Ubavka B.
AU  - Nedić, Zoran
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6251
AB  - Complex permittivity measurements have been performed on lithium and cesium salts of 12-tungstophosphoric acid hydrates (H3PW12O40.nH(2)O) within the frequency region of the microwave X-band (8 - 12 GHz) and at room temperature. Dielectric relaxation spectra have been observed for both salts. For the lithium salt (Li3PW12O40.11H(2)O) one dipolar relaxation has been recorded, whereas for the cesium salt (CS3PW12O40.10H(2)O) two dipolar relaxations have been registered. The results are discussed by assuming that the fast reorientation of H2O molecules and oxonium ions (H3O+) contribute to the observed relaxations. Dynamical conductivity results exhibit frequency dependence with a waviness reflecting the observed dipolar relaxations.
T2  - Materials Science Forum
T1  - X-band microwave permittivity measurements on lithium and cesium salts of 12-tunstophosphoric acid
VL  - 282-2
SP  - 193
EP  - 197
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6251
ER  - 

@article{
author = "Cajkovski, T and Davidović, Milorad P. and Cajkovski, D and Likar-Smiljanic, V and Biljic, R and Mioč, Ubavka B. and Nedić, Zoran",
year = "1998",
abstract = "Complex permittivity measurements have been performed on lithium and cesium salts of 12-tungstophosphoric acid hydrates (H3PW12O40.nH(2)O) within the frequency region of the microwave X-band (8 - 12 GHz) and at room temperature. Dielectric relaxation spectra have been observed for both salts. For the lithium salt (Li3PW12O40.11H(2)O) one dipolar relaxation has been recorded, whereas for the cesium salt (CS3PW12O40.10H(2)O) two dipolar relaxations have been registered. The results are discussed by assuming that the fast reorientation of H2O molecules and oxonium ions (H3O+) contribute to the observed relaxations. Dynamical conductivity results exhibit frequency dependence with a waviness reflecting the observed dipolar relaxations.",
journal = "Materials Science Forum",
title = "X-band microwave permittivity measurements on lithium and cesium salts of 12-tunstophosphoric acid",
volume = "282-2",
pages = "193-197",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6251"
}

Cajkovski, T., Davidović, M. P., Cajkovski, D., Likar-Smiljanic, V., Biljic, R., Mioč, U. B.,& Nedić, Z.. (1998). X-band microwave permittivity measurements on lithium and cesium salts of 12-tunstophosphoric acid. in Materials Science Forum, 282-2, 193-197.
https://hdl.handle.net/21.15107/rcub_vinar_6251

Cajkovski T, Davidović MP, Cajkovski D, Likar-Smiljanic V, Biljic R, Mioč UB, Nedić Z. X-band microwave permittivity measurements on lithium and cesium salts of 12-tunstophosphoric acid. in Materials Science Forum. 1998;282-2:193-197.
https://hdl.handle.net/21.15107/rcub_vinar_6251 .

Cajkovski, T, Davidović, Milorad P., Cajkovski, D, Likar-Smiljanic, V, Biljic, R, Mioč, Ubavka B., Nedić, Zoran, "X-band microwave permittivity measurements on lithium and cesium salts of 12-tunstophosphoric acid" in Materials Science Forum, 282-2 (1998):193-197,
https://hdl.handle.net/21.15107/rcub_vinar_6251 .

TY  - JOUR
AU  - Tomić, Predrag
AU  - Davidović, Milorad P.
PY  - 1996
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2021
AB  - The three-component amorphous alloy Fe80Si10B10 was prepared on the surface of copper roller by rapid quenching in the vicinity of the eutectic point. Changes of the obtained spin-glass metastable phase were investigated by differential scanning calorimetric analysis (DSC), as a function of the relaxation temperature, and by X-ray diffraction (XRD) measurements, in the crystallization phase of the metallic glass. The crystallization kinetics and the corresponding activation energies, E(a), were determined using the dynamic thermal treatment. For the study of the crystallization process, the XRD measurements were done before and after crystallization. On the basis of these data, the products of the investigated metallic glass crystallization have been determined, The Curie temperature of the ferromagnetic transition has been determined from the DSC measurements in the low temperature region. The Johnson-Melh-Avrami dynamic model for nun-isothermal conditions, and the DSC measurements were used for determination and definition of the parameter n, responsible for the mechanism of crystallization, whereas the Vogel-Fulcher model for isothermal conditions and the DSC measurements were used to determine the characteristic time of crystallization, tau(t). The obtained results for E(a), n and tau(t) are in good agreement with other authors results.
T2  - Journal of Non-crystalline Solids
T1  - The study of relaxational properties and crystallization of the metallic glass Fe80Si10B10
VL  - 204
IS  - 1
SP  - 32
EP  - 37
DO  - 10.1016/0022-3093(96)00193-7
ER  - 

@article{
author = "Tomić, Predrag and Davidović, Milorad P.",
year = "1996",
abstract = "The three-component amorphous alloy Fe80Si10B10 was prepared on the surface of copper roller by rapid quenching in the vicinity of the eutectic point. Changes of the obtained spin-glass metastable phase were investigated by differential scanning calorimetric analysis (DSC), as a function of the relaxation temperature, and by X-ray diffraction (XRD) measurements, in the crystallization phase of the metallic glass. The crystallization kinetics and the corresponding activation energies, E(a), were determined using the dynamic thermal treatment. For the study of the crystallization process, the XRD measurements were done before and after crystallization. On the basis of these data, the products of the investigated metallic glass crystallization have been determined, The Curie temperature of the ferromagnetic transition has been determined from the DSC measurements in the low temperature region. The Johnson-Melh-Avrami dynamic model for nun-isothermal conditions, and the DSC measurements were used for determination and definition of the parameter n, responsible for the mechanism of crystallization, whereas the Vogel-Fulcher model for isothermal conditions and the DSC measurements were used to determine the characteristic time of crystallization, tau(t). The obtained results for E(a), n and tau(t) are in good agreement with other authors results.",
journal = "Journal of Non-crystalline Solids",
title = "The study of relaxational properties and crystallization of the metallic glass Fe80Si10B10",
volume = "204",
number = "1",
pages = "32-37",
doi = "10.1016/0022-3093(96)00193-7"
}

Tomić, P.,& Davidović, M. P.. (1996). The study of relaxational properties and crystallization of the metallic glass Fe80Si10B10. in Journal of Non-crystalline Solids, 204(1), 32-37.
https://doi.org/10.1016/0022-3093(96)00193-7

Tomić P, Davidović MP. The study of relaxational properties and crystallization of the metallic glass Fe80Si10B10. in Journal of Non-crystalline Solids. 1996;204(1):32-37.
doi:10.1016/0022-3093(96)00193-7 .

Tomić, Predrag, Davidović, Milorad P., "The study of relaxational properties and crystallization of the metallic glass Fe80Si10B10" in Journal of Non-crystalline Solids, 204, no. 1 (1996):32-37,
https://doi.org/10.1016/0022-3093(96)00193-7 . .