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| 1 | Jack Zhong | -- | 208 | 2026-10-08 10:44:46 | | | |
| 2 | Jack Zhong | -11 word(s) | 197 | 2026-10-08 10:45:27 | | |
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Sintering Temperature
EditSintering temperature is the temperature at which a powder compact is held so that the necks between particles grow and the pore network closes. Densification and coarsening compete, and raising the temperature accelerates both, so the hottest treatment rarely gives the finest microstructure; in a field-assisted process the temperature also fixes phase composition and defect chemistry, and a nitrogen-containing ceramic can lose nitrogen as the temperature rises [1]. The usual way to lower the required temperature is to add a sintering aid that forms a transient liquid, the liquid providing a fast transport path while most of the solid stays undissolved [2]; activated and plasma-assisted routes push densification to lower temperatures by the same logic combined with an enhanced driving force [3]. Under the pressure applied in field-assisted sintering, part of the densification occurs by creep rather than by diffusion alone, so the mechanism depends on stress and temperature together [4]. The practical window is bounded from below by incomplete densification and from above by exaggerated grain growth, loss of a volatile constituent and reaction with the die, and hardness and thermal conductivity track the density reached within that window [5].
References
- Sun, Z.; Song, X.; Xu, L. Effects of sintering temperature on microstructure, nitrogen deficiency and densification of spark plasma sintered Mn3Cu0.5Ge0.5N. Ceramics International 2011, 37, 1693-1696. [CrossRef]
- Guo, H.; Mao, X.; Zhang, J.; Tian, R.; Wang, S. Densification of AlON ceramics doped with Y2O3-La2O3-MnO additives at lower sintering temperature. Ceramics International 2019, 45, 5080-5086. [CrossRef]
- Luo, J.; Li, J.; Li, M.; Shen, Q.; Zhang, Y. Low-temperature densification by plasma activated sintering of Mg2Si-added Si3N4. Ceramics International 2019, 45, 15128-15133. [CrossRef]
- Kashyap, S.K.; Mitra, R. Densification behavior involving creep during spark plasma sintering of ZrB2-SiC based ultra-high temperature ceramic composites. Ceramics International 2020, 46, 5028-5036. [CrossRef]
- Babapoor, A.; Asl, M.S.; Ahmadi, Z.; Namini, A.S. Effects of spark plasma sintering temperature on densification, hardness and thermal conductivity of titanium carbide. Ceramics International 2018, 44, 14541-14546. [CrossRef]
