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.
出处
《粉末冶金技术》
CAS
CSCD
北大核心
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)
关键词
ZRB2
共沉淀法
放电等离子烧结
氧化性能
zirconium diboride
co-precipitation method
spark plasma sintering
oxidizing performance
