TY  - JOUR
AU  - Matović, Branko
AU  - Zagorac, Dejan
AU  - Cvijović-Alagić, Ivana
AU  - Zagorac, Jelena B.
AU  - Butulija, Svetlana
AU  - Erčić, Jelena
AU  - Hanzel, Ondrej
AU  - Sedlák, Richard
AU  - Lisnichuk, Maksym
AU  - Tatarko, Peter
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10083
AB  - High-entropy rare-earth (RE) zirconates with pyrochlore structure were successfully fabricated by pressureless and spark plasma sintering. RE2Zr2O7 compound with nominal composition (La0.2Y0.2Gd0.2Nd0.2Sm0.2)Zr2O7 was prepared by simple glycine nitrate procedure (GNP). GNP process yielded powders with low crystallinity and after subsequent calcination, well crystalline ceramics were formed. During calcination defective fluorite (F-RE2Zr2O7) and crystal pyrochlore (Py-RE2Zr2O7) structures coexist. Formation of pure crystalline pyrochlore occurs after sintering at 1450°C. High-density ceramics, free of any additives, were obtained after powders compaction and pressureless (PS), as well as field assisted sintering technique (FAST) at 1450°C. Theoretical investigations of the high-entropy RE2Zr2O7 pyrochlore systems were performed. Unit cell parameter of the obtained Py-RE2Zr2O7 is 10.5892(2)Å and 10.5999(2)Å for PS and FAST sintering, respectively, which is in good agreement with the results of Density Functional Theory (DFT) calculations. The thermal diffusivity of sintered samples at room temperature was ∼0.7mm2/s for both sintering methods.ResumenSe fabricaron con éxito, mediante sinterización por plasma sin presión y por chispa, los circonatos de tierras raras (RE) de alta entropía con estructura de pirocloro. El compuesto RE2Zr2O7 con composición nominal (La0,2Y0,2Gd0,2Nd0,2Sm0,2)Zr2O7 se preparó mediante un procedimiento simple de nitrato de glicina (GNP). El proceso GNP produjo polvos con baja cristalinidad y después de la posterior calcinación, se formaron cerámicas bien cristalinas. Durante la calcinación coexisten estructuras defectuosas de fluorita (F-RE2Zr2O7) y pirocloro cristalino (Py-RE2Zr2O7). La formación de pirocloro cristalino puro se produce después de la sinterización a 1.450°C. Después de la compactación de polvos y sin presión (PS), así como por la técnica de sinterización asistida en campo (FAST) a 1.450 oC, se obtuvieron cerámicas de alta densidad, libres de aditivos. Se realizaron investigaciones teóricas de los sistemas de pirocloro RE2Zr2O7 de alta entropía. El parámetro de celda unitaria del Py-RE2Zr2O7 obtenido es 105.892(2) Å y 105.999(2) Å para la sinterización PS y FAST, respectivamente, lo que está de acuerdo con los resultados de los cálculos de la teoría funcional de la densidad (DFT). La difusividad térmica de las muestras sinterizadas a temperatura ambiente fue de ∼ 0,7 mm2/s para ambos métodos de sinterización.
T2  - Boletín de la Sociedad Española de Cerámica y Vidrio
T1  - Fabrication and characterization of high entropy pyrochlore ceramics
T1  - Fabricación y caracterización de cerámicas de pirocloro de alta entropía
VL  - 62
IS  - 1
SP  - 66
EP  - 76
DO  - 10.1016/j.bsecv.2021.11.002
ER  - 

@article{
author = "Matović, Branko and Zagorac, Dejan and Cvijović-Alagić, Ivana and Zagorac, Jelena B. and Butulija, Svetlana and Erčić, Jelena and Hanzel, Ondrej and Sedlák, Richard and Lisnichuk, Maksym and Tatarko, Peter",
year = "2023",
abstract = "High-entropy rare-earth (RE) zirconates with pyrochlore structure were successfully fabricated by pressureless and spark plasma sintering. RE2Zr2O7 compound with nominal composition (La0.2Y0.2Gd0.2Nd0.2Sm0.2)Zr2O7 was prepared by simple glycine nitrate procedure (GNP). GNP process yielded powders with low crystallinity and after subsequent calcination, well crystalline ceramics were formed. During calcination defective fluorite (F-RE2Zr2O7) and crystal pyrochlore (Py-RE2Zr2O7) structures coexist. Formation of pure crystalline pyrochlore occurs after sintering at 1450°C. High-density ceramics, free of any additives, were obtained after powders compaction and pressureless (PS), as well as field assisted sintering technique (FAST) at 1450°C. Theoretical investigations of the high-entropy RE2Zr2O7 pyrochlore systems were performed. Unit cell parameter of the obtained Py-RE2Zr2O7 is 10.5892(2)Å and 10.5999(2)Å for PS and FAST sintering, respectively, which is in good agreement with the results of Density Functional Theory (DFT) calculations. The thermal diffusivity of sintered samples at room temperature was ∼0.7mm2/s for both sintering methods.ResumenSe fabricaron con éxito, mediante sinterización por plasma sin presión y por chispa, los circonatos de tierras raras (RE) de alta entropía con estructura de pirocloro. El compuesto RE2Zr2O7 con composición nominal (La0,2Y0,2Gd0,2Nd0,2Sm0,2)Zr2O7 se preparó mediante un procedimiento simple de nitrato de glicina (GNP). El proceso GNP produjo polvos con baja cristalinidad y después de la posterior calcinación, se formaron cerámicas bien cristalinas. Durante la calcinación coexisten estructuras defectuosas de fluorita (F-RE2Zr2O7) y pirocloro cristalino (Py-RE2Zr2O7). La formación de pirocloro cristalino puro se produce después de la sinterización a 1.450°C. Después de la compactación de polvos y sin presión (PS), así como por la técnica de sinterización asistida en campo (FAST) a 1.450 oC, se obtuvieron cerámicas de alta densidad, libres de aditivos. Se realizaron investigaciones teóricas de los sistemas de pirocloro RE2Zr2O7 de alta entropía. El parámetro de celda unitaria del Py-RE2Zr2O7 obtenido es 105.892(2) Å y 105.999(2) Å para la sinterización PS y FAST, respectivamente, lo que está de acuerdo con los resultados de los cálculos de la teoría funcional de la densidad (DFT). La difusividad térmica de las muestras sinterizadas a temperatura ambiente fue de ∼ 0,7 mm2/s para ambos métodos de sinterización.",
journal = "Boletín de la Sociedad Española de Cerámica y Vidrio",
title = "Fabrication and characterization of high entropy pyrochlore ceramics, Fabricación y caracterización de cerámicas de pirocloro de alta entropía",
volume = "62",
number = "1",
pages = "66-76",
doi = "10.1016/j.bsecv.2021.11.002"
}

Matović, B., Zagorac, D., Cvijović-Alagić, I., Zagorac, J. B., Butulija, S., Erčić, J., Hanzel, O., Sedlák, R., Lisnichuk, M.,& Tatarko, P.. (2023). Fabrication and characterization of high entropy pyrochlore ceramics. in Boletín de la Sociedad Española de Cerámica y Vidrio, 62(1), 66-76.
https://doi.org/10.1016/j.bsecv.2021.11.002

Matović B, Zagorac D, Cvijović-Alagić I, Zagorac JB, Butulija S, Erčić J, Hanzel O, Sedlák R, Lisnichuk M, Tatarko P. Fabrication and characterization of high entropy pyrochlore ceramics. in Boletín de la Sociedad Española de Cerámica y Vidrio. 2023;62(1):66-76.
doi:10.1016/j.bsecv.2021.11.002 .

Matović, Branko, Zagorac, Dejan, Cvijović-Alagić, Ivana, Zagorac, Jelena B., Butulija, Svetlana, Erčić, Jelena, Hanzel, Ondrej, Sedlák, Richard, Lisnichuk, Maksym, Tatarko, Peter, "Fabrication and characterization of high entropy pyrochlore ceramics" in Boletín de la Sociedad Española de Cerámica y Vidrio, 62, no. 1 (2023):66-76,
https://doi.org/10.1016/j.bsecv.2021.11.002 . .

TY  - CONF
AU  - Zagorac, Dejan
AU  - Cvijović-Alagić, Ivana
AU  - Zagorac, Jelena
AU  - Butulija, Svetlana
AU  - Erčić, Jelena
AU  - Hanzel, Ondrej
AU  - Sedlak, Richard
AU  - Lisnichuk, Maksym
AU  - Škundrić, Tamara
AU  - Pejić, Milan
AU  - Jovanović, Dušica
AU  - Tatarko, Peter
AU  - Matović, Branko
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11329
AB  - High-Entropy Alloys (HEAs) have attracted considerable interest due to the combination of useful properties and enhanced applications, and a few HEAs have already been shown to possess exceptional properties under extreme conditions (e.g. Ultra-High Temperature Ceramic (UHTC)). However, predicting the formation, structures, and stability of HEAs is one of the major goals of recent studies, which is expected to bring discovery of new systems with enhanced properties of the material, with special attention on high temperature and mechanical load. Here, we show an example of high-entropy rare-earth (RE) zirconates with a pyrochlore structure that was examined theoretically and experimentally observed. Theoretical methods were applied to investigate the variable composition of the ordered and disordered pyrochlore structures using quantum mechanics, group action theory, PCAE, and supercell methods. The investigated RE2Zr2O7 compound was successfully fabricated by pressureless and spark plasma sintering. with nominal composition (La0.2Y0.2Gd0.2Nd0.2Sm0.2)Zr2O7, prepared by simple glycine nitrate procedure (GNP) and characterized using various experimental methods (XRD, SEM, TEM, Raman, etc.). [1] Pyrochlore structures were generated using the Primitive Cell Approach for Atom Exchange (PCAE) method [2] or the supercell approach using the Crystal17 program package [3], and investigation of disordered systems and solid solutions was conducted using the group action theory [4]. Structural optimization on the ab initio level was performed using the Crystal17 code, based on a Linear Combination of Atomic Orbitals (LCAO). Density functional theory (DFT) calculations were utilized in the present study, using the local density approximation (LDA) with Perdew–Zunger (PZ) correlation functional.
PB  - Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade
PB  - Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)
C3  - IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts
T1  - DFT study of structural stability and mechanical properties: High-Entropy Alloys (HEAs) - Ultra-High Temperature Ceramics (UHTC)
SP  - 43
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11329
ER  - 

@conference{
author = "Zagorac, Dejan and Cvijović-Alagić, Ivana and Zagorac, Jelena and Butulija, Svetlana and Erčić, Jelena and Hanzel, Ondrej and Sedlak, Richard and Lisnichuk, Maksym and Škundrić, Tamara and Pejić, Milan and Jovanović, Dušica and Tatarko, Peter and Matović, Branko",
year = "2022",
abstract = "High-Entropy Alloys (HEAs) have attracted considerable interest due to the combination of useful properties and enhanced applications, and a few HEAs have already been shown to possess exceptional properties under extreme conditions (e.g. Ultra-High Temperature Ceramic (UHTC)). However, predicting the formation, structures, and stability of HEAs is one of the major goals of recent studies, which is expected to bring discovery of new systems with enhanced properties of the material, with special attention on high temperature and mechanical load. Here, we show an example of high-entropy rare-earth (RE) zirconates with a pyrochlore structure that was examined theoretically and experimentally observed. Theoretical methods were applied to investigate the variable composition of the ordered and disordered pyrochlore structures using quantum mechanics, group action theory, PCAE, and supercell methods. The investigated RE2Zr2O7 compound was successfully fabricated by pressureless and spark plasma sintering. with nominal composition (La0.2Y0.2Gd0.2Nd0.2Sm0.2)Zr2O7, prepared by simple glycine nitrate procedure (GNP) and characterized using various experimental methods (XRD, SEM, TEM, Raman, etc.). [1] Pyrochlore structures were generated using the Primitive Cell Approach for Atom Exchange (PCAE) method [2] or the supercell approach using the Crystal17 program package [3], and investigation of disordered systems and solid solutions was conducted using the group action theory [4]. Structural optimization on the ab initio level was performed using the Crystal17 code, based on a Linear Combination of Atomic Orbitals (LCAO). Density functional theory (DFT) calculations were utilized in the present study, using the local density approximation (LDA) with Perdew–Zunger (PZ) correlation functional.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)",
journal = "IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts",
title = "DFT study of structural stability and mechanical properties: High-Entropy Alloys (HEAs) - Ultra-High Temperature Ceramics (UHTC)",
pages = "43",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11329"
}

Zagorac, D., Cvijović-Alagić, I., Zagorac, J., Butulija, S., Erčić, J., Hanzel, O., Sedlak, R., Lisnichuk, M., Škundrić, T., Pejić, M., Jovanović, D., Tatarko, P.,& Matović, B.. (2022). DFT study of structural stability and mechanical properties: High-Entropy Alloys (HEAs) - Ultra-High Temperature Ceramics (UHTC). in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts
Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade., 43.
https://hdl.handle.net/21.15107/rcub_vinar_11329

Zagorac D, Cvijović-Alagić I, Zagorac J, Butulija S, Erčić J, Hanzel O, Sedlak R, Lisnichuk M, Škundrić T, Pejić M, Jovanović D, Tatarko P, Matović B. DFT study of structural stability and mechanical properties: High-Entropy Alloys (HEAs) - Ultra-High Temperature Ceramics (UHTC). in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts. 2022;:43.
https://hdl.handle.net/21.15107/rcub_vinar_11329 .

Zagorac, Dejan, Cvijović-Alagić, Ivana, Zagorac, Jelena, Butulija, Svetlana, Erčić, Jelena, Hanzel, Ondrej, Sedlak, Richard, Lisnichuk, Maksym, Škundrić, Tamara, Pejić, Milan, Jovanović, Dušica, Tatarko, Peter, Matović, Branko, "DFT study of structural stability and mechanical properties: High-Entropy Alloys (HEAs) - Ultra-High Temperature Ceramics (UHTC)" in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts (2022):43,
https://hdl.handle.net/21.15107/rcub_vinar_11329 .

TY  - CONF
AU  - Matović, Branko
AU  - Zagorac, Dejan
AU  - Cvijović-Alagić, Ivana
AU  - Zagorac, Jelena
AU  - Butulija, Svetlana
AU  - Erčić, Jelena
AU  - Hanzel, Ondrej
AU  - Sedlak, Richard
AU  - Lisnichuk, Maksym
AU  - Tatarko, Peter
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11332
AB  - High-entropy rare-earth (RE) zirconates with pyrochlore structure were successfully fabricated by pressureless and spark plasma sintering. RE2Zr2O7 compound with nominal composition (La0.2Y0.2Gd0.2Nd0.2Sm0.2)Zr2O7 was prepared by simple glycine nitrate procedure (GNP). GNP process yielded powders with low crystallinity and after subsequent calcination, well crystalline ceramics were formed. During calcination defective fluorite (F-RE2Zr2O7) and crystal pyrochlore (Py-RE2Zr2O7) structures coexist. Formation of pure crystalline pyrochlore occurs after sintering at 1450 C. High-density ceramics, free of any additives, were obtained after powders compaction and pressureless (PS), as well as Field Assisted Sintering Technique (FAST) at 1450 C. Theoretical investigations of the high-entropy RE2Zr2O7 pyrochlore systems were performed. Unit cell parameter of the obtained Py-RE2Zr2O7 is 10.5892(2) Å and 10.5999(2) Å for PS and FAST sintering, respectively, which is in good agreement with the results of Density Functional Theory (DFT) calculations. The thermal diffusivity of sintered samples at room temperature was ~0.7 mm2 /s for both sintering methods.
PB  - Belgrade : Materials Research Society of Serbia – MRS-Serbia
C3  - 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts
T1  - Fabrication and characterization of high entropy pyrochlore ceramics
VL  - XLV
SP  - 115
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11332
ER  - 

@conference{
author = "Matović, Branko and Zagorac, Dejan and Cvijović-Alagić, Ivana and Zagorac, Jelena and Butulija, Svetlana and Erčić, Jelena and Hanzel, Ondrej and Sedlak, Richard and Lisnichuk, Maksym and Tatarko, Peter",
year = "2022",
abstract = "High-entropy rare-earth (RE) zirconates with pyrochlore structure were successfully fabricated by pressureless and spark plasma sintering. RE2Zr2O7 compound with nominal composition (La0.2Y0.2Gd0.2Nd0.2Sm0.2)Zr2O7 was prepared by simple glycine nitrate procedure (GNP). GNP process yielded powders with low crystallinity and after subsequent calcination, well crystalline ceramics were formed. During calcination defective fluorite (F-RE2Zr2O7) and crystal pyrochlore (Py-RE2Zr2O7) structures coexist. Formation of pure crystalline pyrochlore occurs after sintering at 1450 C. High-density ceramics, free of any additives, were obtained after powders compaction and pressureless (PS), as well as Field Assisted Sintering Technique (FAST) at 1450 C. Theoretical investigations of the high-entropy RE2Zr2O7 pyrochlore systems were performed. Unit cell parameter of the obtained Py-RE2Zr2O7 is 10.5892(2) Å and 10.5999(2) Å for PS and FAST sintering, respectively, which is in good agreement with the results of Density Functional Theory (DFT) calculations. The thermal diffusivity of sintered samples at room temperature was ~0.7 mm2 /s for both sintering methods.",
publisher = "Belgrade : Materials Research Society of Serbia – MRS-Serbia",
journal = "23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts",
title = "Fabrication and characterization of high entropy pyrochlore ceramics",
volume = "XLV",
pages = "115",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11332"
}

Matović, B., Zagorac, D., Cvijović-Alagić, I., Zagorac, J., Butulija, S., Erčić, J., Hanzel, O., Sedlak, R., Lisnichuk, M.,& Tatarko, P.. (2022). Fabrication and characterization of high entropy pyrochlore ceramics. in 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts
Belgrade : Materials Research Society of Serbia – MRS-Serbia., XLV, 115.
https://hdl.handle.net/21.15107/rcub_vinar_11332

Matović B, Zagorac D, Cvijović-Alagić I, Zagorac J, Butulija S, Erčić J, Hanzel O, Sedlak R, Lisnichuk M, Tatarko P. Fabrication and characterization of high entropy pyrochlore ceramics. in 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts. 2022;XLV:115.
https://hdl.handle.net/21.15107/rcub_vinar_11332 .

Matović, Branko, Zagorac, Dejan, Cvijović-Alagić, Ivana, Zagorac, Jelena, Butulija, Svetlana, Erčić, Jelena, Hanzel, Ondrej, Sedlak, Richard, Lisnichuk, Maksym, Tatarko, Peter, "Fabrication and characterization of high entropy pyrochlore ceramics" in 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts, XLV (2022):115,
https://hdl.handle.net/21.15107/rcub_vinar_11332 .

TY  - JOUR
AU  - Matović, Branko
AU  - Urbanovich, Vladimir
AU  - Girman, Vladimir
AU  - Lisnichuk, Maksym
AU  - Nikolić, Dobrica
AU  - Erčić, Jelena
AU  - Cvijović-Alagić, Ivana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10160
AB  - Additive-free boron carbide (B4C) powders were densified at 4 GPa using the high-pressure “anvil-type with hollows” apparatus in the temperature range of 1500–1900 °C. The boron carbide ceramics prepared by this method showed a hardness of 37 GPa, which is very close to the hardness of mono-crystal boron carbide. The study showed that the boron carbide grains are uniformly sized without observed grain growth in the sintered materials. Obtained results revealed that high-pressure sintering can be a very effective low-temperature densification method for the obtainment of additive-free B4C ceramics. Moreover, the process can be scaled-up for the production of large-size composites required in various cutting tools and other extreme condition applications.
T2  - Materials Letters
T1  - Densification of boron carbide under high pressure
VL  - 314
SP  - 131877
DO  - 10.1016/j.matlet.2022.131877
ER  - 

@article{
author = "Matović, Branko and Urbanovich, Vladimir and Girman, Vladimir and Lisnichuk, Maksym and Nikolić, Dobrica and Erčić, Jelena and Cvijović-Alagić, Ivana",
year = "2022",
abstract = "Additive-free boron carbide (B4C) powders were densified at 4 GPa using the high-pressure “anvil-type with hollows” apparatus in the temperature range of 1500–1900 °C. The boron carbide ceramics prepared by this method showed a hardness of 37 GPa, which is very close to the hardness of mono-crystal boron carbide. The study showed that the boron carbide grains are uniformly sized without observed grain growth in the sintered materials. Obtained results revealed that high-pressure sintering can be a very effective low-temperature densification method for the obtainment of additive-free B4C ceramics. Moreover, the process can be scaled-up for the production of large-size composites required in various cutting tools and other extreme condition applications.",
journal = "Materials Letters",
title = "Densification of boron carbide under high pressure",
volume = "314",
pages = "131877",
doi = "10.1016/j.matlet.2022.131877"
}

Matović, B., Urbanovich, V., Girman, V., Lisnichuk, M., Nikolić, D., Erčić, J.,& Cvijović-Alagić, I.. (2022). Densification of boron carbide under high pressure. in Materials Letters, 314, 131877.
https://doi.org/10.1016/j.matlet.2022.131877

Matović B, Urbanovich V, Girman V, Lisnichuk M, Nikolić D, Erčić J, Cvijović-Alagić I. Densification of boron carbide under high pressure. in Materials Letters. 2022;314:131877.
doi:10.1016/j.matlet.2022.131877 .

Matović, Branko, Urbanovich, Vladimir, Girman, Vladimir, Lisnichuk, Maksym, Nikolić, Dobrica, Erčić, Jelena, Cvijović-Alagić, Ivana, "Densification of boron carbide under high pressure" in Materials Letters, 314 (2022):131877,
https://doi.org/10.1016/j.matlet.2022.131877 . .

TY  - JOUR
AU  - Matović, Branko
AU  - Maletaškić, Jelena
AU  - Prikhna, Tatiana
AU  - Urbanovich, Vladimir
AU  - Girman, Vladimir
AU  - Lisnichuk, Maksym
AU  - Todorović, Bratislav
AU  - Yoshida, Katsumi
AU  - Cvijović-Alagić, Ivana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9405
AB  - Additive-free boron carbide (B4C) – silicon carbide (SiC) ceramic composites with different B4C and β-SiC powders ratio were densified using the high-pressure “anvil-type with hollows” apparatus at 1500 °C under a pressure of 4 GPa for 60 s in air. The effect of starting powders ratio on the composites sintering behavior, relative density, microstructural development, and thermomechanical properties was studied. The sintered samples hardness was found to be in the range from 24 to 31 GPa. The thermal conductivity measurements, conducted in the temperature range from room temperature to 1000 °C, showed that the thermal diffusivity of sintered samples was between 6 and 9.5 mm2/s whereas the thermal conductivity was in the range from 16 to 28 W/(m K). The results of this study show that the high-pressure sintering can be a very effective low-temperature densification method for the obtainment of additive-free B4C - β-SiC ceramic composites. © 2021 Elsevier Ltd
T2  - Journal of the European Ceramic Society
T1  - Characterization of B4C-SiC ceramic composites prepared by ultra-high pressure sintering
VL  - 41
IS  - 9
SP  - 4755
EP  - 4760
DO  - 10.1016/j.jeurceramsoc.2021.03.047
ER  - 

@article{
author = "Matović, Branko and Maletaškić, Jelena and Prikhna, Tatiana and Urbanovich, Vladimir and Girman, Vladimir and Lisnichuk, Maksym and Todorović, Bratislav and Yoshida, Katsumi and Cvijović-Alagić, Ivana",
year = "2021",
abstract = "Additive-free boron carbide (B4C) – silicon carbide (SiC) ceramic composites with different B4C and β-SiC powders ratio were densified using the high-pressure “anvil-type with hollows” apparatus at 1500 °C under a pressure of 4 GPa for 60 s in air. The effect of starting powders ratio on the composites sintering behavior, relative density, microstructural development, and thermomechanical properties was studied. The sintered samples hardness was found to be in the range from 24 to 31 GPa. The thermal conductivity measurements, conducted in the temperature range from room temperature to 1000 °C, showed that the thermal diffusivity of sintered samples was between 6 and 9.5 mm2/s whereas the thermal conductivity was in the range from 16 to 28 W/(m K). The results of this study show that the high-pressure sintering can be a very effective low-temperature densification method for the obtainment of additive-free B4C - β-SiC ceramic composites. © 2021 Elsevier Ltd",
journal = "Journal of the European Ceramic Society",
title = "Characterization of B4C-SiC ceramic composites prepared by ultra-high pressure sintering",
volume = "41",
number = "9",
pages = "4755-4760",
doi = "10.1016/j.jeurceramsoc.2021.03.047"
}

Matović, B., Maletaškić, J., Prikhna, T., Urbanovich, V., Girman, V., Lisnichuk, M., Todorović, B., Yoshida, K.,& Cvijović-Alagić, I.. (2021). Characterization of B4C-SiC ceramic composites prepared by ultra-high pressure sintering. in Journal of the European Ceramic Society, 41(9), 4755-4760.
https://doi.org/10.1016/j.jeurceramsoc.2021.03.047

Matović B, Maletaškić J, Prikhna T, Urbanovich V, Girman V, Lisnichuk M, Todorović B, Yoshida K, Cvijović-Alagić I. Characterization of B4C-SiC ceramic composites prepared by ultra-high pressure sintering. in Journal of the European Ceramic Society. 2021;41(9):4755-4760.
doi:10.1016/j.jeurceramsoc.2021.03.047 .

Matović, Branko, Maletaškić, Jelena, Prikhna, Tatiana, Urbanovich, Vladimir, Girman, Vladimir, Lisnichuk, Maksym, Todorović, Bratislav, Yoshida, Katsumi, Cvijović-Alagić, Ivana, "Characterization of B4C-SiC ceramic composites prepared by ultra-high pressure sintering" in Journal of the European Ceramic Society, 41, no. 9 (2021):4755-4760,
https://doi.org/10.1016/j.jeurceramsoc.2021.03.047 . .