In this paper , the basic theories , basic electrical properties , basic applications and the developing status were discussed , then the ceramic materials used for srtio _ 3 varistor and the preparing process were presented and systematic researched through abundant experiments . theory analyses were also explored to explain the phenomenon and law of the relative experiments 本论文在概述了钛酸锶( srtio _ 3 )压敏电阻器的基本理论、基本性能、基本应用和国内外发展状况的基础上,对钛酸锶压敏电阻器瓷料配方和制备工艺进行了系统的实验研究,并对相关实验现象和规律进行了适当理论分析和探讨。
One - step synthesization made the electrical properties more stable , controling the reducing sintering temperature and retention time can adjust the electrical properties in a certain scope , changing the oxidation temperature made the varistor ’ s voltage v10ma changed , using the special double - layer silver plasm can eliminate the voltage - direction problem 一次配料得到的样品电性能一致性更好;控制还原气氛烧结温度和保温时间,可以在一定范围内调节钛酸锶压敏电阻器的电性能,改变氧化温度可以获得不同的压敏电压,从而得到系列化产品;采用双层银浆工艺成功消除了压敏电压的方向性问题。
