稀土稳定剂对ZTA复相陶瓷性能影响的研究  

Effects of Rare Earth Oxides on the Mechanical Properties of Zirconia Toughened Alumina Ceramics

作　　者：于庆华[1] 尹茜[1] 王介强[2] 

机构地区：[1]山东城市建设职业学院建筑工程系,济南250103 [2]济南大学材料科学与工程系,济南250014

出　　处：《中国陶瓷》2013年第11期5-8,11,共5页China Ceramics

基　　金：山东省高等学校科技计划项目(J10LD59)

摘　　要：采用液相沉淀法制备ZrO2/Al2O3纳米复合粉体,以自制的粉体为原料,制备ZTA(ZrO2Toughening Al2O3)复相陶瓷材料,并研究稀土稳定剂对其力学性能与微观结构的影响。结果表明,稳定剂的种类及掺量主要影响陶瓷在烧结和受力过程中的物相变化,同时影响陶瓷的微观形貌,最终会导致陶瓷力学性能的差异。The ultra fine zirconia/alumina powders were prepared by the liquid-phase precipitation method. Using the self-prepared powders, ZTA composites were fabricated the microstructure and the mechanical properties The dramatic influences of rare earth stable reagent amounts on the properties of ZTA composites were analyzed. They effected the phase transformation of zirconia during sintering and stressing greatly. It is also found that different rare earth oxides and amounts have different influence on the microstructure and the mechanical properties of ZTA.

关 键 词：ZTA复相陶瓷 液相沉淀法 稀土稳定剂 力学性能 

分 类 号：TQ174.758.22[化学工程—陶瓷工业]