A Generalized Gibbs Potential Model for Materials Degradation  

作　　者：J. W. McPherson J. W. McPherson(McPherson Reliability Consulting LLC, Plano, Texas, USA)

机构地区：[1]McPherson Reliability Consulting LLC, Plano, Texas, USA

出　　处：《World Journal of Condensed Matter Physics》2024年第4期107-127,共21页凝固态物理国际期刊（英文）

摘　　要：It is well known that work done on a material by conservative forces (electrical, mechanical, chemical) will increase the Gibbs Potential of the material. The increase in Gibbs Potential can be stored in the material and is free/available to do work at some later time. However, it will be shown in this paper that while in this state of higher Gibbs potential, the material is metastable and the material will degrade spontaneously/naturally with time in an effort to reach a lower Gibbs Potential. A generalized Gibbs Potential Model is developed herein to better understand its impact on a materials degradation rate. Special attention will be given to dielectrics degradation.It is well known that work done on a material by conservative forces (electrical, mechanical, chemical) will increase the Gibbs Potential of the material. The increase in Gibbs Potential can be stored in the material and is free/available to do work at some later time. However, it will be shown in this paper that while in this state of higher Gibbs potential, the material is metastable and the material will degrade spontaneously/naturally with time in an effort to reach a lower Gibbs Potential. A generalized Gibbs Potential Model is developed herein to better understand its impact on a materials degradation rate. Special attention will be given to dielectrics degradation.

关 键 词：Materials Degradation Degradation Rate Gibbs Potential Gibbs Free Energy Activation Energy Dielectrics Dielectric Breakdown Time-Dependent Dielectric Breakdown TDDB Bond Breakage Thermochemical E-Model 

分 类 号：O17[理学—数学]