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研究了Ｓｉ３Ｎ４－ＺｒＯ２复合材料在高温高应力条件下的抗氧化能力。结果表明：（１）Ｓｉ３Ｎ４－ＺｒＯ２复合材料的抗氧化性主要取决于表面状态和ＺｒＮ的生成量；当表面有较多的ＺｒＮ（超过４０％）时，在高温下氧化很快进行，并渗透到内部；当表面有一层Ｓｉ２Ｎ２Ｏ或者无ＺｒＮ时，其氧化程度很轻。（２）Ｓｉ３Ｎ４－ＺｒＯ２材料具有较强的抗热冲击能力和抗高温压应力能力。
The oxidation resistance of Si3N4-ZrO2 composites under high temperature and high stress was studied. The results show that: (1) The oxidation resistance of Si3N4-ZrO2 composites depends mainly on the surface state and the amount of ZrN. When there are more ZrN (over 40%) on the surface, the oxidation proceeds rapidly at high temperature and penetrates To the interior; when the surface has a layer of Si2N2O or no ZrN, its oxidation is very light. (2) Si3N4-ZrO2 material has strong thermal shock resistance and high temperature stress capacity.