摘要
In this study,a Cr_(2)O_(3) nanosheet(Cr_(2)O_(3) NS)inserted Cr-Zr-O coating was developed as a hydrogen isotope permeation barrier.The Cr_(2)O_(3) NSs,fabricated by rapid heat treatment,were amorphous with a thickness of only several nanometers.These Cr_(2)O_(3) NSs were then incorporated into a Cr-Zr-O multi-metal oxide composite coating via a dip-coating method to form a coating.The effect of the Cr_(2)O_(3) NS concentration on the morphology,microstructure and deuterium permeation resistance of the coating was studied.With the addition of 1.0 g 1^(-1)Cr_(2)O_(3) NSs,compared with the Cr-Zr-O coating without NSs,the permeation reduction factor of the resultant coating was enhanced from 249℃to 575℃ at 500℃.The coating,with a thickness of nearly 193 nm,achieved a comparable deuterium resistance that was above two orders of magnitude higher than the steel substrate.The results show that ceramic NSs can serve as effective fillers for enhancing the coating performance when functioning as a hydrogen isotope barrier.
作者
田新洛
李和平
郑立雨
李芳健
郑忠洋
尹圣铭
王新云
严有为
Xinluo TIAN;Heping LI;Liyu ZHENG;Fangjian LI;Zhongyang ZHENG;Shengming YIN;Xinyun WANG;Youwei YAN(State Key Laboratory of Materials Processing and Die&Mould Technology,International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,People's Republic of China)
基金
supported by the National MCF Energy R&D Program of China(No.2018YFE0313300)
National Natural Science Foundation of China(Nos.52273224,51402116)
the Fundamental Research Funds for the Central Universities(Nos.2018KFYYXJJ028,2019KFYXMBZ045)
