TY  - JOUR
AU  - Bošković, Snežana B.
AU  - Dukić, Jelena
AU  - Matović, Branko
AU  - Živković, Ljiljana
AU  - Vlajic, M.
AU  - Krstic, V.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3508
AB  - Pure and doped CaMnO3 were synthesized by applying modified glycine/nitrate procedure. The detailed structural characterization of prepared nanometric size powders, their properties, as well as the results on studying sintering and microstructure of the sintered bodies are given. Since the data on additive influence on densification of CaMnO3 during sintering are difficult to find in the literature, their role in densification is discussed. It was found that increasing Y concentration enhanced densification during sintering, and in addition, suppressed grain growth process. The results of the electrical conductivity measurements as a function of dopant concentration are also discussed. (C) 2007 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Nanopowders properties and sintering of CaMnO3 solid solutions
VL  - 463
IS  - 1-2
SP  - 282
EP  - 287
DO  - 10.1016/j.jallcom.2007.08.083
ER  - 

@article{
author = "Bošković, Snežana B. and Dukić, Jelena and Matović, Branko and Živković, Ljiljana and Vlajic, M. and Krstic, V.",
year = "2008",
abstract = "Pure and doped CaMnO3 were synthesized by applying modified glycine/nitrate procedure. The detailed structural characterization of prepared nanometric size powders, their properties, as well as the results on studying sintering and microstructure of the sintered bodies are given. Since the data on additive influence on densification of CaMnO3 during sintering are difficult to find in the literature, their role in densification is discussed. It was found that increasing Y concentration enhanced densification during sintering, and in addition, suppressed grain growth process. The results of the electrical conductivity measurements as a function of dopant concentration are also discussed. (C) 2007 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Nanopowders properties and sintering of CaMnO3 solid solutions",
volume = "463",
number = "1-2",
pages = "282-287",
doi = "10.1016/j.jallcom.2007.08.083"
}

Bošković, S. B., Dukić, J., Matović, B., Živković, L., Vlajic, M.,& Krstic, V.. (2008). Nanopowders properties and sintering of CaMnO3 solid solutions. in Journal of Alloys and Compounds, 463(1-2), 282-287.
https://doi.org/10.1016/j.jallcom.2007.08.083

Bošković SB, Dukić J, Matović B, Živković L, Vlajic M, Krstic V. Nanopowders properties and sintering of CaMnO3 solid solutions. in Journal of Alloys and Compounds. 2008;463(1-2):282-287.
doi:10.1016/j.jallcom.2007.08.083 .

Bošković, Snežana B., Dukić, Jelena, Matović, Branko, Živković, Ljiljana, Vlajic, M., Krstic, V., "Nanopowders properties and sintering of CaMnO3 solid solutions" in Journal of Alloys and Compounds, 463, no. 1-2 (2008):282-287,
https://doi.org/10.1016/j.jallcom.2007.08.083 . .

TY  - JOUR
AU  - Spasojević, Vojislav
AU  - Markovic, D.
AU  - Kusigerski, Vladan
AU  - Antić, Bratislav
AU  - Bošković, Snežana B.
AU  - Mitrić, Miodrag
AU  - Vlajic, M.
AU  - Krstic, V.
AU  - Matović, Branko
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6672
AB  - Nanosized mixed valent perovskite manganites CaMnO3, La doped Ca0.7La0.3MnO3 (S1) and Cc co-doped Ca0.7La0.3Mn0.8Ce0.2O3 (S2) samples were synthesized by the modified glycine-nitrate procedure. Their magnetic properties were investigated by M(T) measurements in both ZFC and FC regimes in several applied DC magnetic fields, as well as by AC susceptibility measurements. Nanosized CaMnO3 exhibits similar behavior as its bulk counterpart with the antiferromagnetic transition temperature T-N = 120 K. Obtained magnetization curves for S1 and S2 display behavior typical for magnetic nanoparticle systems, such as irreversibility of ZFC and FC curves, and field dependence of the magnetization maximum in ZFC branches. Field dependence of the magnetization maxima (T-max versus H-2/3) as well as AC susceptibility behavior (frequency dependence of T-max) point to the presence of considerable interparticle interactions. Consequently, below T-max the formation of super spin-glass state can be assumed. (c) 2007 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Magnetic properties of nanosized mixed valent manganites CaMnO3 and Ca0.7La0.3Mn1-xCexO3 (x = 0; 0.2)
VL  - 442
IS  - 1-2
SP  - 197
EP  - 199
DO  - 10.1016/j.jallcom.2006.08.356
ER  - 

@article{
author = "Spasojević, Vojislav and Markovic, D. and Kusigerski, Vladan and Antić, Bratislav and Bošković, Snežana B. and Mitrić, Miodrag and Vlajic, M. and Krstic, V. and Matović, Branko",
year = "2007",
abstract = "Nanosized mixed valent perovskite manganites CaMnO3, La doped Ca0.7La0.3MnO3 (S1) and Cc co-doped Ca0.7La0.3Mn0.8Ce0.2O3 (S2) samples were synthesized by the modified glycine-nitrate procedure. Their magnetic properties were investigated by M(T) measurements in both ZFC and FC regimes in several applied DC magnetic fields, as well as by AC susceptibility measurements. Nanosized CaMnO3 exhibits similar behavior as its bulk counterpart with the antiferromagnetic transition temperature T-N = 120 K. Obtained magnetization curves for S1 and S2 display behavior typical for magnetic nanoparticle systems, such as irreversibility of ZFC and FC curves, and field dependence of the magnetization maximum in ZFC branches. Field dependence of the magnetization maxima (T-max versus H-2/3) as well as AC susceptibility behavior (frequency dependence of T-max) point to the presence of considerable interparticle interactions. Consequently, below T-max the formation of super spin-glass state can be assumed. (c) 2007 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Magnetic properties of nanosized mixed valent manganites CaMnO3 and Ca0.7La0.3Mn1-xCexO3 (x = 0; 0.2)",
volume = "442",
number = "1-2",
pages = "197-199",
doi = "10.1016/j.jallcom.2006.08.356"
}

Spasojević, V., Markovic, D., Kusigerski, V., Antić, B., Bošković, S. B., Mitrić, M., Vlajic, M., Krstic, V.,& Matović, B.. (2007). Magnetic properties of nanosized mixed valent manganites CaMnO3 and Ca0.7La0.3Mn1-xCexO3 (x = 0; 0.2). in Journal of Alloys and Compounds, 442(1-2), 197-199.
https://doi.org/10.1016/j.jallcom.2006.08.356

Spasojević V, Markovic D, Kusigerski V, Antić B, Bošković SB, Mitrić M, Vlajic M, Krstic V, Matović B. Magnetic properties of nanosized mixed valent manganites CaMnO3 and Ca0.7La0.3Mn1-xCexO3 (x = 0; 0.2). in Journal of Alloys and Compounds. 2007;442(1-2):197-199.
doi:10.1016/j.jallcom.2006.08.356 .

Spasojević, Vojislav, Markovic, D., Kusigerski, Vladan, Antić, Bratislav, Bošković, Snežana B., Mitrić, Miodrag, Vlajic, M., Krstic, V., Matović, Branko, "Magnetic properties of nanosized mixed valent manganites CaMnO3 and Ca0.7La0.3Mn1-xCexO3 (x = 0; 0.2)" in Journal of Alloys and Compounds, 442, no. 1-2 (2007):197-199,
https://doi.org/10.1016/j.jallcom.2006.08.356 . .

TY  - JOUR
AU  - Bučevac, Dušan
AU  - Bošković, Snežana B.
AU  - Matović, Branko
AU  - Živković, Ljiljana
AU  - Vlajic, M.
AU  - Krstic, Vladimir
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3218
AB  - Microstructure development and fracture toughness of Si3N4 composites were studied in the presence of seeds and Al2O3 + Y2O3 as sintering aids. The elongated beta-Si3N4 seeds were introduced into two different alpha-Si3N4 matrix powders; one was the ultra fine powder matrix and the other was the coarse powder matrix. The amount of seeds varied from 0 to 6 wt%. The grain growth inhibition and the mechanism of toughening were discussed and correlated with microstructure. The maximum fracture toughness of 9.0 MPa m(1/2) was obtained for ultra fine powder with 5 wt% seeds hot pressed at 1,700 degrees C for 6 h.
T2  - Journal of Materials Science
T1  - Correlation between fracture toughness and microstructure of seeded silicon nitride ceramics
VL  - 42
IS  - 18
SP  - 7920
EP  - 7926
DO  - 10.1007/s10853-007-1679-6
ER  - 

@article{
author = "Bučevac, Dušan and Bošković, Snežana B. and Matović, Branko and Živković, Ljiljana and Vlajic, M. and Krstic, Vladimir",
year = "2007",
abstract = "Microstructure development and fracture toughness of Si3N4 composites were studied in the presence of seeds and Al2O3 + Y2O3 as sintering aids. The elongated beta-Si3N4 seeds were introduced into two different alpha-Si3N4 matrix powders; one was the ultra fine powder matrix and the other was the coarse powder matrix. The amount of seeds varied from 0 to 6 wt%. The grain growth inhibition and the mechanism of toughening were discussed and correlated with microstructure. The maximum fracture toughness of 9.0 MPa m(1/2) was obtained for ultra fine powder with 5 wt% seeds hot pressed at 1,700 degrees C for 6 h.",
journal = "Journal of Materials Science",
title = "Correlation between fracture toughness and microstructure of seeded silicon nitride ceramics",
volume = "42",
number = "18",
pages = "7920-7926",
doi = "10.1007/s10853-007-1679-6"
}

Bučevac, D., Bošković, S. B., Matović, B., Živković, L., Vlajic, M.,& Krstic, V.. (2007). Correlation between fracture toughness and microstructure of seeded silicon nitride ceramics. in Journal of Materials Science, 42(18), 7920-7926.
https://doi.org/10.1007/s10853-007-1679-6

Bučevac D, Bošković SB, Matović B, Živković L, Vlajic M, Krstic V. Correlation between fracture toughness and microstructure of seeded silicon nitride ceramics. in Journal of Materials Science. 2007;42(18):7920-7926.
doi:10.1007/s10853-007-1679-6 .

Bučevac, Dušan, Bošković, Snežana B., Matović, Branko, Živković, Ljiljana, Vlajic, M., Krstic, Vladimir, "Correlation between fracture toughness and microstructure of seeded silicon nitride ceramics" in Journal of Materials Science, 42, no. 18 (2007):7920-7926,
https://doi.org/10.1007/s10853-007-1679-6 . .