Silicon carbide and the new low activation requirements for a fusion reactor first wall
Silicon carbide and the new low activation requirements for a fusion reactor first wall
复制标题
碳化硅和聚变反应堆第一壁的新的低活化要求
DOI：
10.1016/0022-3115(92)90720-6
复制
发表时间：
1992
影响因子：
3.1
通讯作者：
M. Zucchetti
中科院分区：
文献类型：
--
作者：
P. Rocco;H. Scholz;M. Zucchetti
碳化硅的放射性行为与建议用于聚变应用的其他结构材料的放射性行为进行了比较。这一分析考虑了事故安全、维护和废物管理等短期和长期问题。提出了以符合放射性限值为依据的低激活标准。根据这些标准，钢很难被认为是可能的低活性材料。即使是元素量身定做的低活化钢，也永远不可能完全满足所有标准。钒合金和碳化硅是一种新型的陶瓷基/陶瓷纤维复合材料(“碳化硅/碳化硅”)，就辐射/激活行为而言，应该被认为是最有前途的低活度材料。研究了与钒合金活化有关的一些问题。结果表明，碳化硅/碳化硅是一种理想的低活性材料，因为所有的标准都得到满足。对碳化硅杂质的活化进行了研究。
The radioactive behaviour of silicon carbide is compared to that of other structural materials proposed for fusion applications. This analysis takes into account short- and long-term issues like accident safety, maintenance and waste management. Low activation criteria based on the compliance with radioactivity limits are proposed. According to these criteria, steels can hardly be considered as possible low-activation materials. Even the elementally-tailored reduced activation steels can never fulfil completely all criteria. Vanadium alloys and SiC in the form of a new ceramic matrix/ceramic fibre composite (“SiC/SiC”) must be regarded as the most promising low-activation materials, as far as radiological/activation behaviour is concerned. Some of the problems associated with the activation of vanadium alloys are examined. SiC/SiC turns out to be an ideal low-activation material as all criteria are fulfilled. Attention is given to the activation of SiC impurities.