Effect of chemical corrosion on charge transport behaviour in epoxy/Al_(2)O_(3)nanocomposite irradiated by gamma ray
作者机构：School of Electrical and Information EngineeringTianjin UniversityTianjinChina Research Institute for Materials Science and TechnologyWaseda UniversityTokyoJapan State Grid Shandong Electric Power Company Overhauling CompanyJinanChina
出 版 物：《High Voltage》 (高电压（英文）)
年 卷 期：2022年第7卷第1期
页 面：52-63页
核心收录：
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
基 金：supported by State Grid Tianjin Electric Power Company(5500‐202099277A‐0‐0‐00)
主 题：corrosion transport behaviour
摘 要：Chemical corrosion and gamma‐ray irradiation appeared with the loss of coolant accident may seriously threaten the safe operation of a nuclear power plant,where epoxy resin(ER)‐based materials are widely *** is urgent to study the effects of the corrosion and the irradiation on the electrical performance in an ER‐based *** this work,ER/Al_(2)O_(3)nanocomposite samples with 0,1,3,5‐wt%nano Al2O3 filler content were prepared at the thickness of 2 mm,and the total gamma irradiation dose was 0,500,and 1000 *** samples were chemically corroded in a boric acid solution(pH=4.7)and a trisodium phosphate alkaline solution(pH=11)at 60℃and 100℃for 48 *** transport behaviour in the samples was derived from the surface potential decay *** addition,the sample structures were characterised to analyse the corrosion mechanism in the *** results indicated that the depth and the density of the trap showed a temperature‐dependent manner associated with the *** the addition of appropriate content of the filler,the trap centre was deepened and the carrier mobility was limited even after the *** is found that the appearance of hydroxyl and carboxyl groups during corrosion,the interaction between the nanoparticle and the matrix and the crosslinking reaction caused by the irradiation are responsible for the variation in charge transport behaviour.
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