本文采用反应结合制备方法,通过对坯体进行预氧化使SiC颗粒表面氧化形成SiO2,而后在烧成中与添加剂Al2O3-Y2O3反应,使坯体气孔率减少,制备了多孔SiC基陶瓷.文章探讨了坯体中SiC的氧化特征、反应结合过程和相变化以及它们对烧结体性能的影响.
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