添加Y_(2)O_(3)对复相Sm-Sialon陶瓷反应过程和材料机械性能的影响

Effect of Y_(2)O_(3) Addition on Sm-Sialon Composite Reaction Process and Mechanical Properties

在有关相关系研究基础上，设计和制备具有不同α－Ｓｉａｌｏｎ／β－Ｓｉａｌｏｎ比例的单稀土Ｓｍ复相Ｓｉａｌｏｎ陶瓷材料．研究Ｙ２Ｏ３的添加对Ｓｉｎ－Ｓｉａｌｏｎ复相陶瓷反应生成过程和致密化性能影响．结果表明：添加剂Ｙ２Ｏ３能促进α－Ｓｉａｌｏｎ生成及反应过程中间产物（Ｙ，Ｓｍ）－黄长石消失，有利于材料的致密化和机械性能提高．

Based on phase relationship studying, Sin-Sialon composites with defferent α-Sialon/β-Sialon ratio were designed and produced. The effect of Y2O3 addition on Sin-Sialon composites reaction process and densification was investigated, Results showed that Y2O3 addition accelerated α-Sialon yield and (Y, Sin) -melilite disappearance, and benefited composite densification process and improved mechanical properties.