Solid solution and densification behavior of zirconium oxycarbide (ZrCxOy) ceramics via doping ZrO2 and Zr in ZrC
Solid solution and densification behavior of zirconium oxycarbide (ZrCxOy) ceramics via doping ZrO2 and Zr in ZrC
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ZrC 中掺杂 ZrO2 和 Zr 碳氧化锆 (ZrCxOy) 陶瓷的固溶和致密化行为
DOI:
10.1016/j.jallcom.2017.09.183
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发表时间:
2017-12
影响因子:
6.2
通讯作者:
Zhang Guo Jun
中科院分区:
文献类型:
--
作者:
Liu Hu Lin;Man Zhen Yong;Liu Ji Xuan;Wang Xin Gang;Zhang Guo Jun
zirconium oxycarbide (ZrCxOy) ceramics were hot pressed using ZrC-5ZrO2and ZrC-5ZrO2-5Zr (number in mol%) mixtures as starting powders, and the solid solution and densification processes were investigated. When 5 mol% ZrO2were added to ZrC matrix, ZrCxOyand CO were formed during the reaction between ZrC and ZrO2occurred above 1600 °C. And the sintered ZrCxOyceramic had numerous pores. However, the co-doping of ZrO2and Zr could reduce the reaction temperatures and CO amounts in ZrC-5ZrO2-5Zr system, resulting in a near fully dense ZrCxOyceramic. The chemical composition of obtained ZrCxOyceramics were also calculated according to oxygen content and reaction processes.
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