摘要
金属铍作为面对等离子体材料的候选者之一，其热冲击性能受到广泛关注。以高功率扫描电子束加热模拟聚变堆面对等离子体材料的高热负荷工作状态，考察了５种不同方法制备的铍材经热冲击后表面熔化、升华及裂纹形成规律，在１０ＭＪ／ｍ２热冲击能量密度以内，几种铍材的表面烧蚀深度约在１５０μｍ以内。材料失重率不大于４０μｇ／ｍｍ２。实验表明：等离子体物理气相沉积法制备的样品具有较好的抗热冲击性能。
Beryllium, carbon and tungsten are promoted candidates for plasma
facing materials(PFMs) in nuclear fusion devices. Thermal shock test was performed with
intense pulsed electron beam for performance analysis. Sublimation, melting and crack
formation for five groups of beryllium during the test were evaluated for fusion applications. The
experiment indicates:the erosion depth of groups of beryllium is normally less than 150μm
and the material weight loss is not more than 40μg/mm 2 with thermal injection under 10MJ/m
2. The samples prepared by plasma vapor deposition preserve better thermal shock
performance among groups of beryllium.
出处
《核科学与工程》
CSCD
北大核心
1999年第1期57-61,共5页
Nuclear Science and Engineering
