聚变堆第一镜材料块体金属玻璃表面特性

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基金项目: null

Surface characteristics of bulk metallic glasses as first mirror materials for fusion veactor

1.
School of Materials Science and Engineering,Dalian University of Technology,Dalian 116023,China;
2.
Key Laboratory of Chemical Lasers,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China

摘要: 研究了块体金属玻璃（块体非晶合金）Zr65Al7.5Ni10Cu17.5, Co61.2B26.2Si7.8Ta4.8和金属多晶钼3种第一镜材料经低温等离子体H和Ar辐照后的表面特性变化。结果表明，两种块体金属玻璃的抗H等离子体溅射能力与其成分有关。随着等离子体辐照时间的增加，金属多晶钼和块体金属玻璃Zr65Al7.5Ni10Cu17.5的表面粗糙度增大,镜面反射率降低；而块体金属玻璃Co61.2B26.2Si7.8Ta4.8的表面粗糙度减小,镜面反射率升高。X射线衍射仪（XRD）分析表明，块体金属玻璃在离子体溅射过程中，表面微结构具有自修复性。
- 第一镜 /
- 块体金属玻璃 /
- 聚变堆 /
- 等离子体溅射 /
- 镜面反射率
Abstract: Surface characteristics of mirrors made from polycrystalline Mo, bulk metallic glasses(BMGs) Zr65Al7.5Ni10Cu17.5 and Co61.2B26.2Si7.8Ta4.8 were studied. The mirrors were exposed to H plasma in an unbalanced magnetron sputtering chamber. The results show that with increasing the H plasma sputtering time, surface roughnesses of the mirrors made from polycrystalline Mo and BMG Zr65Al7.5Ni10Cu17.5 increase and their specular reflectivities decrease; whereas the surface roughness reduces and the reflectivity increases for the mirror made from BMG Co61.2B26.2Si7.8Ta4.8. During H plasma sputtering, the surface sta
- first mirror /
- bulk metallic glasses /
- fusion reactor /
- plasma sputtering /
- specular reflectivity

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