氧化锌压敏电阻老化机理再探索
作者：张俊峰 陕西华星压敏电阻器厂 上传时间：2012/9/14 11:59:28
摘要：本文在已有的压敏电阻老化机理的基础上，作了进一步的假设，提出另外两个老化因素。一个是在高电场下晶界的逆压电效应和电致伸缩效应的不可逆部分，另一个是大电流冲击下晶界温度骤升骤降引起的热冲击。
叙词：老化机理 电致伸缩 应变 不可逆 晶界热冲击 滞后效应 Abstract：Based on the existing piezoresitor aging principles, the paper presents further hypothesis that there are two more factors for aging. One is the irreversible part due to the converse piezoeclectric effect and electrostriction effect of the grain boundary under the high field; the other is the heat shock resulting from the sudden temperature rise and drop of the grain boundary under the situation of high current shock. Keyword：Aging principle, Electrostriction, Strain, Irreversible, Heat shock of the grain boundary, After effect
叙词：老化机理 电致伸缩 应变 不可逆 晶界热冲击 滞后效应 Abstract：Based on the existing piezoresitor aging principles, the paper presents further hypothesis that there are two more factors for aging. One is the irreversible part due to the converse piezoeclectric effect and electrostriction effect of the grain boundary under the high field; the other is the heat shock resulting from the sudden temperature rise and drop of the grain boundary under the situation of high current shock. Keyword：Aging principle, Electrostriction, Strain, Irreversible, Heat shock of the grain boundary, After effect
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－－本文摘自《电源世界》，已被阅读7559次
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