摘要
以化学共沉淀法所得超细粉为原料，设计两相复合材料的微观结构，讨论了材料的增强、增韧机理。结果表明，该材料具有很好的增强、增韧性能。经１５５０℃，４ｈ烧成的材料，测得其抗弯强度为９０１ＭＰａ，断裂韧性为１４．３０ＭＰａ·ｍ^（１／２）。关键词：
The microstructural design of polyhpase ceramic,mechanical properties(bending strength and fracture toughness) of CeO2- ZrO2 and Y2O3- ZrO2 TZP ceramic materials made from surperfine powder prepared by chemical coprecipitation method were investigated.The results showed good strengthening and toughening behavior.Excellent mechanical properties were obtained for some composite ceramic materials:benging strength σf=901MPa,fracture toughness KIC = 14.30MPa·m1/2.The mechanism of toughening and strengthening were also discussed.
出处
《华东理工大学学报（自然科学版）》
CAS
CSCD
1996年第5期572-576,共5页
Journal of East China University of Science and Technology
基金
国家自然科学基金
关键词
氧化锆
增韧
增强
复合材料
陶瓷
zirconia
strengthening
toughening
composite
TZP(Tetragonal Zirconia Polycrystals)
