Abstract zirconium oxycarbide (ZrCxOy) ceramics were hot pressed using ZrC-5ZrO2 and ZrC-5ZrO2-5Zr (number in mol%) mixtures as starting powders, and the solid solution and densification processes were investigated. When 5 mol% ZrO2 were added to ZrC matrix, ZrCxOy and CO were formed during the reaction between ZrC and ZrO2 occurred above 1600 °C. And the sintered ZrCxOy ceramic had numerous pores. However, the co-doping of ZrO2 and Zr could reduce the reaction temperatures and CO amounts in ZrC-5ZrO2-5Zr system, resulting in a near fully dense ZrCxOy ceramic. The chemical composition of obtained ZrCxOy ceramics were also calculated according to oxygen content and reaction processes.

中文翻译：

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在ZrC中掺杂ZrO 2 和Zr的碳氧化锆(ZrC x O y )陶瓷的固溶和致密化行为

摘要 以ZrC-5ZrO2和ZrC-5ZrO2-5​​Zr（摩尔%）混合物为起始粉体，热压碳氧化锆（ZrCxOy）陶瓷，研究了固溶和致密化过程。当 ZrC 基体中加入 5 mol% ZrO2 时，ZrCxOy 和 CO 在 ZrC 和 ZrO2 之间的反应过程中在 1600 °C 以上发生。并且烧结后的 ZrCxOy 陶瓷具有许多孔隙。然而，ZrO2 和 Zr 的共掺杂可以降低 ZrC-5ZrO2-5​​Zr 体系中的反应温度和 CO 量，从而产生接近完全致密的 ZrCxOy 陶瓷。所得ZrCxOy陶瓷的化学成分也根据氧含量和反应过程进行计算。