Influence of annealing atmosphere on the deuterium permeation of Y2O3 coatings

被引：7

作者：

Wu Yunyi ^{[1
]}

Li, Shuai ^{[1
]}

He, Di ^{[1
]}

Liu, Xiaopeng ^{[1
]}

Wang, Shumao ^{[1
]}

Jiang, Lijun ^{[1
]}

机构：

[1] Gen Res Inst Nonferrous Met, Dept Energy Mat & Technol, Beijing, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2016年 / 41卷 / 24期

关键词：

Y2O3; Coating; Deuterium permeation; Anneal atmosphere; CHEMICAL-VAPOR-DEPOSITION; ALUMINUM-OXIDE FILMS; HYDROGEN PERMEATION; LOW-PRESSURE; BARRIERS; 316L; MICROSTRUCTURE; DIFFUSIVITY; SOLUBILITY; TRANSPORT;

D O I：

10.1016/j.ijhydene.2015.12.004

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：

In this work, Y2O3 coatings were deposited on 316L stainless steel substrate by metal organic chemical vapor deposition (MOCVD), followed by annealing at 700 degrees C in argon or hydrogen atmosphere. The effect of annealing atmosphere on the deuterium permeation inhibition properties of Y2O3 coatings was investigated. The coating was characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and scanning electron microscope (SEM). The hydrogen permeation inhibition performance of coatings was investigated by deuterium permeation measurement. When post-annealed in hydrogen atmosphere, a FeCr2O4 layer formed at the interface as a result of element diffusion, leading to obvious increase of the permeation current from the first measurement cycle to the second. The deuterium permeation reduction factor (PRF) values of the coating were in the range of 412-102 at 500 degrees C-700 degrees C in the first measurement cycle. However, the PRF values decreased to 276-43 at 500 degrees C-700 degrees C in the second measurement cycle. The coating post-annealed in hydrogen atmosphere exhibited lower permeation inhibition performance than that post-annealed in argon atmosphere, which might be ascribed to the cracks and holes presented in the coating. (C) 2015 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：10374 / 10379

页数：6

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