共沉淀包膜掺杂法制备氧化锌压敏陶瓷粉料条件的研究  

Study on Preparing Zinc Oxide Varistor Ceramic Powders with Coprecipitation-Coating Doping Process

作　　者：李升章[1] 李自强[1] 何良惠[1] 王祖森 彭忠东 

机构地区：[1]四川联合大学化工系

出　　处：《功能材料》1997年第1期68-70,共3页Journal of Functional Materials

摘　　要：本研究旨在建立以ＺｎＯ为主体，五元掺杂物共沉淀包膜法制备氧化锌压敏陶瓷用粉料的新方法。在实验测定Ｚｎ２＋及Ｂｉ３＋、Ｓｂ３＋、Ｃｏ２＋、Ｍｎ２＋、Ｃｒ３＋碳酸盐－氢氧化物沉淀溶解度曲线的基础上，研究各种因素对恒定ＺｎＯ及五元掺杂物组成ｍｏｌ％的影响，确定最佳共沉淀包膜条件。The purpose of the study is to establish a new coprecipitation coating doping process for preparing zinc oxide varistor ceramic powders in which the primary constituent is ZnO with smaller amounts of five dopants. Based on the solubility curves of carbonates hydroxides precipitates,which have been obtained by experiment determinations, of Zn 2+ and the doping ions,Bi 3+ 、Sb 3+ 、Co 2+ 、Mn 2+ and Cr 3+ , the various factors effecting to stabilize compositions of ZnO and the five dopants have been studied and the optimal coprecipitation coating conditions have been determined.

关 键 词：压敏电阻 氧化锌掺杂 共沉淀包膜 

分 类 号：TN379[电子电信—物理电子学]