【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。更多还原

【Abstract】 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.更多还原