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作 者:张年满[1] 王恩耀[1] 王明旭[1] 洪文玉[1] 王志文[1] 崔成和[1] 梁艳
机构地区:[1]核工业西南物理研究院
出 处:《核聚变与等离子体物理》1998年第2期41-45,共5页Nuclear Fusion and Plasma Physics
摘 要:用碳硼烷加氦直流辉光放电,在HL-1M托卡马克内壁上原位涂覆了含碳硼膜,平均厚度50—70nm,硼碳比约为16。硼化后器壁条件有了本质的改善,对器壁上氧源的抑制特别显著,也增强了石墨表面抗氢离子和氢原子化学蚀刻的能力。硼化显著改善了等离子体性能和提高了等离子体参数。扰动显著减小,放电稳定性和重复性提高。硼化为低混杂波电流驱动实验创造了良好的壁条件。L1M 45The inner wall of the HL1M vacuum chamber has been coated in situ with a boroncontaining carbon film by means of DC glow discharge in helium and carborane. The average film thickness is 50-70nm and the ratio of boron to carbon in the layer is about 1∶6. Wall conditions are improved dramatically by boronization. Oxygen from the wall was suppressed significantly and the chemical erosion of graphite tile surface by energetic hygrogen ions/atoms seemed to be reduced also. Some plasma parameters, the stability and reproducibility of discharges and LHCD operating conditions were improved greatly after boronization.
分 类 号:TL631.24[核科学技术—核技术及应用]
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