摘要
通过往ZrO2 多孔陶瓷浸渗LaPO4液态先驱液制备了具有可加工性的Y TZP/LaPO4复相陶瓷。加入 30 % (体积分数 )石墨可以得到具有35 % (体积分数 )开孔气孔率的ZrO2 预烧结陶瓷体。采用不同浸渗和热分解周期可以得到不同LaPO4含量的Y TZP/LaPO4复相陶瓷。研究了该材料的可加工性和力学性能。结果表明 ,含有 3 5 %～ 7 5 % (体积分数 )LaPO4的Y TZP/LaPO4复相陶瓷具有良好的可加工性 。
A machinable Y TZP/LaPO 4 composite ceramic was prepared by infiltrating LaPO 4 liquid precursor into Y TZP porous ceramic. Sintered Y TZP ceramic preform with 35% (volume fraction) open pore volume was developed by adding graphite 30% (volume fraction). The Y TZP/LaPO 4 composite ceramics containing different LaPO 4 contents were obtained by infiltration and pyrolysis cycles. The machinability and mechanical properties of this material were investigated. The results show that the machinable Y TZP/LaPO 4 composite ceramics containing 2 3% to 7 5% (volume fraction) LaPO 4 has good machinability as well as maintaining outstanding mechanical properties.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2002年第1期30-34,共5页
Journal of the Chinese Society of Rare Earths
基金
教育部科学技术研究重点项目
