The experiment results experess that the wear resistance of RSSC is better then other engineering ceramicses when it is eroded at low angle,its wear resistance at hiht angle concerns with grain phase.

• 结果表明RSSC抵抗低角冲蚀性能优良，耐高角度冲蚀能力主要与晶粒间第二相有关．提出了RSSC耐磨材料的设计原则。