Effect of mechanical activation on carbothermal synthesis and densification of ZrC
Authorized Users Only
2023
Authors
Obradović, NinaFeng, Lun
Filipović, Suzana
Mirković, Miljana
Kosanović, Darko
Rogan, Jelena
Fahrenholtz, William G.
Article (Published version)
Metadata
Show full item recordAbstract
Zirconium carbide ceramics were prepared by carbothermal reduction of ZrO2 and C that were mixed by high-energy ball milling. Powders were milled for times from 0 to 120 min in air. As milling time increased, the surface area of the powders increased, indicating significant particle size reduction. Milled powders were reacted at 1600 °C and then densified by spark plasma sintering at 2000 °C, which was sufficient to convert the starting powders to zirconium carbide. Unmilled powders did not reach full density. Milled powders reached full density, but ZrO2 impurities were found for specimens prepared from powders milled for 60 and 120 min. Microstructure analysis showed that grain size was less than 2 µm for ceramics produced from powder milled for 15 min. Based on densification onset temperature and impurity levels, a milling time of 15 min gives the best balance of particle size reduction to promote densification while minimizing impurity levels.
Keywords:
Mechanical activation / Mechanical properties / SEM / SPS / ZrCSource:
Journal of the European Ceramic Society, 2023Publisher:
- Elsevier Ltd
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200017 (University of Belgrade, Institute of Nuclear Sciences 'Vinča', Belgrade-Vinča) (RS-MESTD-inst-2020-200017)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-MESTD-inst-2020-200135)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200175 (Institute of Technical Sciences of SASA, Belgrade) (RS-MESTD-inst-2020-200175)
DOI: 10.1016/j.jeurceramsoc.2023.08.007
ISSN: 0955-2219
Scopus: 2-s2.0-85167985612
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Obradović, Nina AU - Feng, Lun AU - Filipović, Suzana AU - Mirković, Miljana AU - Kosanović, Darko AU - Rogan, Jelena AU - Fahrenholtz, William G. PY - 2023 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6610 AB - Zirconium carbide ceramics were prepared by carbothermal reduction of ZrO2 and C that were mixed by high-energy ball milling. Powders were milled for times from 0 to 120 min in air. As milling time increased, the surface area of the powders increased, indicating significant particle size reduction. Milled powders were reacted at 1600 °C and then densified by spark plasma sintering at 2000 °C, which was sufficient to convert the starting powders to zirconium carbide. Unmilled powders did not reach full density. Milled powders reached full density, but ZrO2 impurities were found for specimens prepared from powders milled for 60 and 120 min. Microstructure analysis showed that grain size was less than 2 µm for ceramics produced from powder milled for 15 min. Based on densification onset temperature and impurity levels, a milling time of 15 min gives the best balance of particle size reduction to promote densification while minimizing impurity levels. PB - Elsevier Ltd T2 - Journal of the European Ceramic Society T1 - Effect of mechanical activation on carbothermal synthesis and densification of ZrC DO - 10.1016/j.jeurceramsoc.2023.08.007 ER -
@article{ author = "Obradović, Nina and Feng, Lun and Filipović, Suzana and Mirković, Miljana and Kosanović, Darko and Rogan, Jelena and Fahrenholtz, William G.", year = "2023", abstract = "Zirconium carbide ceramics were prepared by carbothermal reduction of ZrO2 and C that were mixed by high-energy ball milling. Powders were milled for times from 0 to 120 min in air. As milling time increased, the surface area of the powders increased, indicating significant particle size reduction. Milled powders were reacted at 1600 °C and then densified by spark plasma sintering at 2000 °C, which was sufficient to convert the starting powders to zirconium carbide. Unmilled powders did not reach full density. Milled powders reached full density, but ZrO2 impurities were found for specimens prepared from powders milled for 60 and 120 min. Microstructure analysis showed that grain size was less than 2 µm for ceramics produced from powder milled for 15 min. Based on densification onset temperature and impurity levels, a milling time of 15 min gives the best balance of particle size reduction to promote densification while minimizing impurity levels.", publisher = "Elsevier Ltd", journal = "Journal of the European Ceramic Society", title = "Effect of mechanical activation on carbothermal synthesis and densification of ZrC", doi = "10.1016/j.jeurceramsoc.2023.08.007" }
Obradović, N., Feng, L., Filipović, S., Mirković, M., Kosanović, D., Rogan, J.,& Fahrenholtz, W. G.. (2023). Effect of mechanical activation on carbothermal synthesis and densification of ZrC. in Journal of the European Ceramic Society Elsevier Ltd.. https://doi.org/10.1016/j.jeurceramsoc.2023.08.007
Obradović N, Feng L, Filipović S, Mirković M, Kosanović D, Rogan J, Fahrenholtz WG. Effect of mechanical activation on carbothermal synthesis and densification of ZrC. in Journal of the European Ceramic Society. 2023;. doi:10.1016/j.jeurceramsoc.2023.08.007 .
Obradović, Nina, Feng, Lun, Filipović, Suzana, Mirković, Miljana, Kosanović, Darko, Rogan, Jelena, Fahrenholtz, William G., "Effect of mechanical activation on carbothermal synthesis and densification of ZrC" in Journal of the European Ceramic Society (2023), https://doi.org/10.1016/j.jeurceramsoc.2023.08.007 . .