Influence of Alumina Addition on the Optical Property of Zirconia/Alumina Composite Dental Ceramics

作     者：蒋丽 李伟 JIANG Li, LIAO Yunmao, LI Wei*, WAN Qianbing, ZHAO Yongqi (State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China)

作者机构：State Key Laboratory of Oral Diseases Sichuan University 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2011年第26卷第4期

页      面：690-695页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Funded by the National High-Tech Research and Development Program of China (863 Program) (No. 2006AA03Z440) 

主　　题：alumina addition zirconia/alumina ceramics transmittance color optical properties 

摘      要：The influence of various alumina additions on the optical property of zirconia/alumina composite ceramics was investigated. The relative sintered densities, transmittances, color and the microstructure of the composite ceramics were studied. The experimental results showed that the relative sintered densities and transmittances decreased with alumina addition. The lightness increased obviously but the chroma change was small. Pure zirconia nanopowders sintered densely could obtain the relatively high transmittance, while the transmittance and the lightness of slight addition changed significantly. The zirconia/alumina composite ceramics with alumina addition less than 7.5wt% could achieve the relatively stable and reliable optical properties.