摘要
用注浆成型方法,通过加入MnO2-TiO2-MgO复相添加剂,在1300℃下获得了相对密度为95%的氧化铝陶瓷。研究了MnO2-TiO2-MgO复相添加剂对氧化铝陶瓷力学性能、显微结构的影响。通过比较在添加相同质量MnO2、MgO的情况下,添加不同质量的TiO2对氧化铝陶瓷烧结性能的影响。结果表明,该复相添加剂能有效降低氧化铝陶瓷的烧结温度,尤其Al2O3+0.5%MgO+3%MnO2+3%TiO2体系烧结效果最好,晶粒分布均匀,几乎无晶粒异常现象,平均粒径为1μm,烧结体密度达到3.78g/cm3。
Alumina ceramics sintered at relatively low temperatures with dense and fine grains sufficient mechanical property is obtained.The effect of MnO2-TiO2-MgO additives on mechanical property and microstructure of the alumina ceramics was investigated.The results show that with 3%MnO2,3%TiO2 and 0.5% MgO,the sintering of alumina ceramics at low temperatures is optimized and the dimension of grains distributes uniformly.
出处
《材料开发与应用》
CAS
2008年第1期5-7,共3页
Development and Application of Materials
关键词
氧化铝陶瓷
添加剂
低温烧结
Alumina ceramics
Additives
Low-temperature sintering
