Recent Progress Addressing Compatibility Issues Relevant to Fusion Environments
Recent Progress Addressing Compatibility Issues Relevant to Fusion Environments
复制标题
解决与融合环境相关的兼容性问题的最新进展
DOI：
10.13182/fst05-a792
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发表时间：
2005
影响因子：
0.9
通讯作者：
J. Distefano
中科院分区：
文献类型：
--
作者：
B. Pint;K. More;H. Meyer;J. Distefano
摘要美国目前的兼容性研究主要集中在两个主题上：V-Li毯概念中的双层或多层耐电Y2 O3/钒涂层和具有Pb-Li冷却剂的SiC复合材料。多层涂层的相容性问题包括陶瓷绝缘层和金属钒合金层。Y2 O3涂层暴露于锂后的表征显示出显着的微观结构的变化。在800°C下，V-4Cr-4 Ti合金在Li中的初始静态胶囊结果显示出意外的小质量增加。在Pb-17 Li中的整体SiC的胶囊测试显示在800°C下1000小时后没有质量变化和没有润湿，并且在1100°C下1000小时后仅有限润湿。测试后Pb-Li的化学分析未检测到Si，检测限为30 ppma（5 wppm）。在这两种液态金属系统中，需要进行具有代表性温度梯度的回路测试，以真正确定兼容性极限。
Abstract Current compatibility research in the U.S. focuses on two topics: dual- or multi-layer electrically-resistant Y2O3/vanadium coatings in a V-Li blanket concept and SiC composites with a Pb-Li coolant. The compatibility issue for multi-layer coatings includes the ceramic insulating layer and the metallic vanadium alloy layer. Characterization of Y2O3 coatings after exposure to Li shows significant changes in the microstructure. Initial static capsule results for V-4Cr-4Ti alloys in Li at 800°C showed unexpected small mass gains. Capsule tests of monolithic SiC in Pb-17Li showed no mass change and no wetting after 1000h at 800°C and only limited wetting after 1000h at 1100°C. Chemical analysis of the Pb-Li after the tests did not detect Si to the detectability limit of 30ppma (5wppm). In both liquid metal systems, loop tests with a representative temperature gradient are needed to truly determine compatibility limits.