ZnO纳米粉对压敏陶瓷材料显微结构和电学特性的影响  

INFLUENCE OF ZnO NANOMETER POWDERS ON MICROSTRUCTURE AND ELECTRICAL PROPERTIE OF VARISTOR MATERIAL

作　　者：康雪雅[1] 宋世庚[1] 韩英[1] 涂铭旌[1] 陶明德[1] 

机构地区：[1]中国科学院新疆物理研究所

出　　处：《材料研究学报》1996年第5期529-535,共7页Chinese Journal of Materials Research

摘　　要：用ｓｏｌ－ｇｅｌ方法制备掺杂的ＺｎＯ纳米粉体分析讨论了这种粉体对材料显微结构，材料电学特性如非线性系数，压敏电压和介电特性的影响。与传统方法制成的粉体相比，ｓｏｌ－ｇｅｌ方法制成的纳米粉体具有掺杂均匀，晶粒尺寸分布均匀，其电学特性得到较大提高。A sol-gel method for the preparetion of doped ZnO varistor nanometer powders was described.The influence of the ZnO nanometer powders on the microstrue, the nonlinear parameter,the breakdown voltage, and the dielectric properties of ZnO varistor was investigated. Compared to the conventional mixed oxide technique, varistor ceramics made from sol-gel powders with a more homogeneous distribution of dopants, a regular microstructure and show improvement electrical properties.

关 键 词：纳米粉 显微结构 电学特性 氧化锌 压敏陶瓷 

分 类 号：TQ174.758[化学工程—陶瓷工业]