Hydrogen protection using CrN coatings: Experimental and theoretical study

被引：6
作者：
Fite, S. [1 ]
Zukerman, I. [2 ]
Shabat, A. Ben [2 ]
Barzilai, S. [2 ]
机构：
[1] Israel Atom Energy Commiss, POB 7061, Tel Aviv, Israel
[2] Nucl Res Ctr Negev, Dept Chem, POB 9001, Beer Sheva, Israel
来源：
SURFACES AND INTERFACES | 2023年 / 37卷
关键词：
Hydrogen damage; CrN coatings; Hydrogen protection; Density functional theory; EMBRITTLEMENT; CORROSION; STRESS;
D O I：
10.1016/j.surfin.2023.102629
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Preventing hydrogen damage is an important issue in materials design. To prevent such damage, CrN coating is investigated as a very promising candidate for hydrogen damage protection. In this study, the theoretical analysis of hydrogen adsorption on CrN surfaces was studied. It was found that most CrN surfaces are inert to hydrogen and do not adsorb it. This finding is suggested to explain the hydrogen protection caused by these coatings. To demonstrate these abilities of CrN coatings, we used the Pulsed-DC magnetron sputtering method to produce CrN layers on gadolinium substrates. The coated samples were exposed to hydrogen, characterized by SEM, XRD, and GD-OES, and show no hydrogen damage, were the uncoated ones exhibited a massive hydrogen attack.
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页数：7
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