Microstructure change and deuterium permeation behavior of erbium oxide coating
Microstructure change and deuterium permeation behavior of erbium oxide coating
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DOI：
10.1016/j.jnucmat.2010.12.283
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发表时间：
2011-10
影响因子：
3.1
通讯作者：
T. Chikada;A. Suzuki;Tomohiro Kobayashi;H. Maier;T. Terai;T. Muroga
中科院分区：
文献类型：
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作者：
T. Chikada;A. Suzuki;Tomohiro Kobayashi;H. Maier;T. Terai;T. Muroga
对过滤电弧沉积氧化铒涂层进行了氘渗透测试和显微结构分析。结果表明，在无孔隙和裂纹的涂层到达基体的情况下，渗透抑制效率与涂层厚度成正比。在773- 973 K的渗透测量过程中的涂层的相变已被确定。在测量过程中发生了涂层的晶粒生长，并且渗透抑制效率根据晶粒尺寸而增强。结果表明，氘在涂层中的渗透主要是晶粒扩散。
Deuterium permeation measurements and microstructure analyses on erbium oxide coating deposited by filtered arc deposition have been investigated. It is found that the permeation suppression efficiency is proportional to the coating thickness in case of the coating without pores and cracks reaching to the substrate. A phase transformation of the coating during the permeation measurements at 773–973K has been identified. A grain growth of the coating has occurred during the measurements and permeation suppression efficiency have enhanced according to the grain size. It is suggested that deuterium permeation through the coating is mainly dominated by the crystal grain diffusion.