版权所有:内蒙古大学图书馆 技术提供:维普资讯• 智图
内蒙古自治区呼和浩特市赛罕区大学西街235号 邮编: 010021
作者机构:WUHAN UNIV TECHNOL STATE KEY LAB SYNTH & PROC ADV MAT WUHAN 430070 PEOPLES REPUBLIC OF CHINA
出 版 物:《SOLID STATE IONICS》 (固体离子)
年 卷 期:1995年第81卷第3-4期
页 面:235-242页
核心收录:
学科分类:07[理学] 070203[理学-原子与分子物理] 0703[理学-化学] 0702[理学-物理学]
主 题:SPACE CHARGE GRAIN-BOUNDARY RESISTIVITY ZIRCONIA
摘 要:According to a space-charge theory analysis, the space-charge potential of YSZ is negative, which corresponds to an Y-Zr segregation and an V-O(..) depletion in the space-charge layers. Owing to the highly disordered structure of the grain-boundary interfaces, the resistance of the interfaces is considered to be negligible with respect to that of the space-charge layers, the intrinsic grain-boundary resistivity in stabilized-ZrO2 was thus considered to originate from the V-O(..) depletion in the space-charge layers, and an intrinsic grain-boundary resistivity model was developed. With this model, all the grain-boundary resistivity behaviors in stabilized-ZrO2 with high-purity described in the published litteratures were satisfactorily explained.