氧化鋅壓敏電阻老化機理再探索
作者：張俊峰 陜西華星壓敏電阻器廠 上傳時間：2012/9/14 11:59:28
摘要：本文在已有的壓敏電阻老化機理的基礎(chǔ)上，作了進一步的假設(shè)，提出另外兩個老化因素。一個是在高電場下晶界的逆壓電效應(yīng)和電致伸縮效應(yīng)的不可逆部分，另一個是大電流沖擊下晶界溫度驟升驟降引起的熱沖擊。
敘詞：老化機理 電致伸縮 應(yīng)變 不可逆 晶界熱沖擊 滯后效應(yīng) 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
敘詞：老化機理 電致伸縮 應(yīng)變 不可逆 晶界熱沖擊 滯后效應(yīng) 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《電源世界》，已被閱讀7649次
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