摘要
为了提高放射性废物包装用的不锈钢材料的阻氚性能,采用离子束混合技术在不锈钢表面沉积低Z材料的SiC-C涂层,对50%SiC-C涂层进行不同条件的加热处理以及随后进行的剂量为1×1018/cm2H+的注入,研究涂层微观结构的变化,该研究为涂层的实际使用提供科学依据。研究结果表明:离子束混合沉积在不锈钢基体上的50%SiC-C涂层经加热处理后会发生涂层元素的扩散迁移。随着加热温度的提高,发生颗粒凝聚晶化现象;氢离子注入会产生非晶化效应,同时导致涂层元素Si向表面及界面的增强迁移。
50% SiC-C coatings were prepared on stainless steel with ion beam mixing in order to improve the hydrogen resistance of stainless steel, which is made of container storing radioactive waste materials. These samples were thrmally treated in different conditions and then implanted with a dose of 1 × 10^18/cm^2 of H^ + ion to simulate the environmental status and to offer the basic data for their application in the future. The results show that the components of the ion beam mixed SiC-C coatings are diffused after heat treating. With the increasing of the heat temperature,the congelation and crystallization of the particles in the coatings happened. H^ + ion implantation leads to de-crystallization and, at the same time, enhances to Si migrating to the surface and the interface between coating and substrate.
出处
《表面技术》
EI
CAS
CSCD
北大核心
2009年第1期11-13,共3页
Surface Technology