氧化锌粉体的制备方式对其压敏特性的影响

来源期刊：中南大学学报(自然科学版)1998年第1期

论文作者：陈建勋 赵瑞荣 蒋汉瀛

文章页码：39 - 41

关键词：氧化锌粉末;化学沉淀法;压敏陶瓷;制备

Key words：zinc oxide powders; chemical precipitation method; voltage-sensitive-ceramics; preparetion

摘    要：以ZnSO₄·7H₂O(分析纯)为起始物,用Na₂CO₃, NH₃·H₂O, (NH₄)₂C₂O₄等为沉淀剂,分别制得了3种不同的氧化锌粉末,用SEM和TEM测得了其形貌、粒度,按照传统的陶瓷制备工艺制得了不同的氧化锌陶瓷体,测得了其I-V非线性曲线,并对实验结果进行了分析.结果表明:用不同的沉淀剂制备的氧化锌粉末的形貌、粒度不一样,从而导致相应陶瓷体的有关电性能有差别.

Abstract: Three different ZnO powders were prepared by chemical precipitation using ZnSO₄·7H₂O as primary material, using Na₂CO₃, (NH₄)₂C₂O₄, NH₃·H₂O as precipitating agents. The microstructure of the ZnO powders was determined by SEM, TEM. The different ZnO ceramics were prepared by using traditionalceramic-technology, and theI-Vnonlinear curve was determined. The results show that the morphology and the particle size of the powders prepared by using different precipitating agents are not the same.Consequently the properties of the ceramics are different.