Tritium-permeation-barrier properties of erbium oxide (TPB) coating on CLAM steel

Shuai Liu; Xin Ju; Jie Qiu; Guoxiang Chen; Jun Sun; Yong Xin; Fei Ma

doi:10.1016/j.fusengdes.2018.12.022

Tritium-permeation-barrier properties of erbium oxide (TPB) coating on CLAM steel

Shuai Liu
, Xin Ju
, Jie Qiu
, Guoxiang Chen
, Jun Sun
, Yong Xin
, Fei Ma

School of Materials Science and Engineering

Xi'an Shiyou University
University of Science and Technology Beijing
Nuclear Power Institute of China

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Erbium oxide (Er₂O₃) coatings are considered as the candidate for tritium permeation barrier (TPB) because of its low permeation reduced ratio. The enhanced adhesion between TPB layer and metal substrate is one of the key issues for the high reliability. In this work, erbium coatings were firstly prepared by radio frequency (RF) magnetron sputtering and then annealed to generate Er₂O₃ TPB coatings, accompanied with Er₂Fe₁₇ due to inter-diffusion between Er and steel substrates. The coatings are compact and smooth if the annealing temperature is above 873 K. The samples are insulator at room temperature, and meet the requirement of TPB in blanket. The adhesion of coatings could be improved with elevating annealing temperature. According to the AES profile, a thickness controllable TPB multi-layered model of Er₂O₃/Er₂O₃+Er/Er/Er₂Fe₁₇/Fe is proposed.

Original language	English
Pages (from-to)	347-351
Number of pages	5
Journal	Fusion Engineering and Design
Volume	138
DOIs	https://doi.org/10.1016/j.fusengdes.2018.12.022
State	Published - Jan 2019

Keywords

Erbium oxide
Magnetron sputtering
Multilayer coating
Tritium permeation barriers

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10.1016/j.fusengdes.2018.12.022

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@article{388ac7e4bb364fccb6b1b719e9df28d7,

title = "Tritium-permeation-barrier properties of erbium oxide (TPB) coating on CLAM steel",

abstract = "Erbium oxide (Er2O3) coatings are considered as the candidate for tritium permeation barrier (TPB) because of its low permeation reduced ratio. The enhanced adhesion between TPB layer and metal substrate is one of the key issues for the high reliability. In this work, erbium coatings were firstly prepared by radio frequency (RF) magnetron sputtering and then annealed to generate Er2O3 TPB coatings, accompanied with Er2Fe17 due to inter-diffusion between Er and steel substrates. The coatings are compact and smooth if the annealing temperature is above 873 K. The samples are insulator at room temperature, and meet the requirement of TPB in blanket. The adhesion of coatings could be improved with elevating annealing temperature. According to the AES profile, a thickness controllable TPB multi-layered model of Er2O3/Er2O3+Er/Er/Er2Fe17/Fe is proposed.",

keywords = "Erbium oxide, Magnetron sputtering, Multilayer coating, Tritium permeation barriers",

author = "Shuai Liu and Xin Ju and Jie Qiu and Guoxiang Chen and Jun Sun and Yong Xin and Fei Ma",

note = "Publisher Copyright: {\textcopyright} 2018",

year = "2019",

month = jan,

doi = "10.1016/j.fusengdes.2018.12.022",

language = "英语",

volume = "138",

pages = "347--351",

journal = "Fusion Engineering and Design",

issn = "0920-3796",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Tritium-permeation-barrier properties of erbium oxide (TPB) coating on CLAM steel

AU - Liu, Shuai

AU - Ju, Xin

AU - Qiu, Jie

AU - Chen, Guoxiang

AU - Sun, Jun

AU - Xin, Yong

AU - Ma, Fei

PY - 2019/1

Y1 - 2019/1

N2 - Erbium oxide (Er2O3) coatings are considered as the candidate for tritium permeation barrier (TPB) because of its low permeation reduced ratio. The enhanced adhesion between TPB layer and metal substrate is one of the key issues for the high reliability. In this work, erbium coatings were firstly prepared by radio frequency (RF) magnetron sputtering and then annealed to generate Er2O3 TPB coatings, accompanied with Er2Fe17 due to inter-diffusion between Er and steel substrates. The coatings are compact and smooth if the annealing temperature is above 873 K. The samples are insulator at room temperature, and meet the requirement of TPB in blanket. The adhesion of coatings could be improved with elevating annealing temperature. According to the AES profile, a thickness controllable TPB multi-layered model of Er2O3/Er2O3+Er/Er/Er2Fe17/Fe is proposed.

AB - Erbium oxide (Er2O3) coatings are considered as the candidate for tritium permeation barrier (TPB) because of its low permeation reduced ratio. The enhanced adhesion between TPB layer and metal substrate is one of the key issues for the high reliability. In this work, erbium coatings were firstly prepared by radio frequency (RF) magnetron sputtering and then annealed to generate Er2O3 TPB coatings, accompanied with Er2Fe17 due to inter-diffusion between Er and steel substrates. The coatings are compact and smooth if the annealing temperature is above 873 K. The samples are insulator at room temperature, and meet the requirement of TPB in blanket. The adhesion of coatings could be improved with elevating annealing temperature. According to the AES profile, a thickness controllable TPB multi-layered model of Er2O3/Er2O3+Er/Er/Er2Fe17/Fe is proposed.

KW - Erbium oxide

KW - Magnetron sputtering

KW - Multilayer coating

KW - Tritium permeation barriers

UR - https://www.scopus.com/pages/publications/85058477589

U2 - 10.1016/j.fusengdes.2018.12.022

DO - 10.1016/j.fusengdes.2018.12.022

M3 - 文章

AN - SCOPUS:85058477589

SN - 0920-3796

VL - 138

SP - 347

EP - 351

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

ER -

Tritium-permeation-barrier properties of erbium oxide (TPB) coating on CLAM steel

Abstract

Keywords

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