包裹型ZrB_2-YAG-Al_2O_3复相陶瓷的制备及氧化性能研究  

Fabrication and oxidization performance of ZrB_2-YAG-Al_2O_3 multi-phase ceramics coating

作　　者：宋杰光[1] 王芳[1] 白小波[1] 李伟[1] 马永红[1] 王伟元[1] 陈林燕[1] 

机构地区：[1]九江学院材料工程系九江市绿色再制造重点实验室,江西九江332005

出　　处：《粉末冶金技术》2011年第5期351-356,共6页Powder Metallurgy Technology

基　　金：国家973计划子项目(5133102);江西省教育厅青年科学基金项目(GJJ09595);江西省教育科学"十一五"规划项目(09YB449);九江学院金属材料工程示范性教研室质量工程项目(10SFXJYS09)

摘　　要：ZrB2具有许多优异性能,应用非常广泛。采用共沉淀法成功合成包裹型A1(OH)3-Y(OH)3/ZrB2复合粉体,再通过600℃煅烧得到了包裹型Al2O3-Y2O3/ZrB2复合粉体。包裹型Al2O3-Y2O3-ZrB2粉体在1 700℃、20MPa、4min的放电等离子烧结(SPS)条件下烧结致密化制备包裹型ZrB2-YAG-Al2 O3陶瓷。复相陶瓷的氧化增重随着氧化温度升高而增大,随着YAG-Al2O3含量增大而减小。Zirconium diboride is widely applied because of some excellent performance.The capsule type A1（OH）3-Y（OH）3/ZrB2 composite powders were prepared by a co-precipitation method,the capsule type A12O3-Y2O3/ZrB2 composite powders were prepared by sintering A1（OH）3-Y（OH）3/ZrB2 composite powders.The capsule type ZrB2-YAG-Al2O3 multi-phase ceramics was sintered and densified at 1 700℃,20MPa for 4min by spark plasma sintering method with using capsule type Al2O3-Y2O3-ZrB2 composite powders.The results show that oxidation weight gain is increased with increasing the oxidation temperature,however,the oxidation weight gain is decreased with increasing the YAG-Al2O3 content.

关 键 词：ZRB2 共沉淀法 放电等离子烧结 氧化性能 

分 类 号：TF713.3[冶金工程—钢铁冶金]