National Engineering Research Center of Nonferrous Metals Materials and Products for New Energy;
GRINM Group Co.;
Ltd.;
Beijing 100088;
China;
GRIMAT Engineering Institute Co.;
Ltd.;
Beijing 101407;
China;
General Research Institute for Nonferrous Metals;
Beijing 100088;
China;
School of Materials Science and Engineering;
Northeastern University;
Shenyang 110819;
China;
Deuterium; Permeation barrier; Al2O3 coating; Y2O3 coating; Composite coating; Rare earths;