APPLICATION OF ZINC-OXIDE VARISTORS
APPLICATION OF ZINC-OXIDE VARISTORS
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DOI：
10.1111/j.1151-2916.1990.tb05232.x
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发表时间：
1990-07-01
影响因子：
3.9
通讯作者：
GUPTA, TK
中科院分区：
文献类型：
--
作者：
GUPTA, TK
本文论述了氧化锌压敏电阻的应用，这是一个在文献中没有系统论述的领域。本文首先简要介绍了压敏电阻器的基本性能，包括电学性能以及压敏电阻器的物理、化学和微观结构。这些特性构成了定义与压敏电阻的非线性电流-电压特性直接相关的应用参数的基础。本文详细介绍了这些参数及其与压敏电阻器的微观结构和工艺的关系。最后，通过考虑晶界缺陷模型对压敏电阻的可靠性进行了讨论，该模型解释了使用条件下的不稳定性和稳定性。
This paper deals with the application of ZnO varistors—an area which has not been treated in a systematic way in the literature. The paper starts with a brief description of the fundamental properties comprising the electrical behavior as well as the physics, chemistry, and microstructure of the varistor. These properties then form the basis for defining the application parameters that are directly related to the nonlinear current‐voltage characteristics of the varistor. This paper provides a detailed description of these parameters and their relation to microstructure and the processing of the varistor. Finally, a discussion is presented on the reliability of the varistor by considering a grain‐boundary defect model which explains both the instability and the stability under use conditions.