摘要：本文在已有的壓敏電阻老化機理的基礎上，作了進一步的假設，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和電致伸縮效應的不可逆部分，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 應變 不可逆 晶界熱沖擊 滯后效應 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