通过分析YAG-ZrB2基复相陶瓷氧化前后的增重率、物相和显微结构,研究了YAG-ZrB2基复相陶瓷在700~1300℃的氧化行为,为提高高温陶瓷的高温性能奠定了基础.研究表明,在700~900℃氧化温度范围内,YAG-ZrB2复相陶瓷基本上不发生氧化反应;在900~1200℃氧化温度范围内,随着氧化温度的升高,增重率缓慢升高;在1200~1300℃氧化温度范围内,随着氧化温度的升高,增重率急剧增大.当氧化时间短于lh时,YAG-ZrB2复相陶瓷的增重率变化很快,而当氧化时间超过1h时,增重率变化较缓慢.
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