摘要
应用基体渗铝+选择性氧化法制备由FeAl合金过渡层及其表面Al2O3薄膜组成的FeAl/Al2O3阻氚涂层是当前防氚渗透技术的首选,Al2O3薄膜是决定FeAl/Al2O3阻氚涂层服役性能的关键。综述了FeAl合金及其涂层的表面氧化行为,包括铝的选择性氧化、氧化热力学和动力学行为以及氧化机制,介绍了基体元素对Al2O3薄膜形成和结构的影响以及阻氚涂层表面Al2O3薄膜低温制备技术的研究进展,展望了FeAl/Al2O3阻氚涂层的未来研究方向。
Preparation of FeAl/Al2O3 tritium permeation barrier consisting of FeAl alloy transition layer and Al2O3 film on the layer′s surface by substrate aluminization and subsequent selective oxidation is now the first choice of tritium permeation barrier technology.The Al2O3 film plays a key role on the service performance of FeAl/Al2O3 tritium permeation barrier.Surface oxidation behaviors of the FeAl alloy and coating,including selective oxidation of Al,oxidation thermodynamic and kinetic behavior and oxidation mechanism,are reviewed.Influence of substrate elements on Al2O3 film forming as well as its structure and the low temperature preparation technology of Al2O3 film on surface of the tritium permeation barrier are discribed.The future research direction of FeAl/Al2O3 tritium permeation barrier is proposed.
作者
胡立
张桂凯
唐涛
HU Li;ZHANG Guikai;TANG Tao(Science and Technology on Surface Physics and Chemistry Laboratory,Jiangyou 621907,China;Institute of Materials,China Academy of Engineering Physics,Jiangyou 621908,China)
出处
《机械工程材料》
CAS
CSCD
北大核心
2019年第6期1-7,共7页
Materials For Mechanical Engineering
基金
国家磁约束聚变能发展研究专项项目(2017YFE0300304)
