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Progress in coating development for fusion systems

D.L Smith, J.-H Park, I Lyublinski, V Evtikhin, S Zinkle2002年Fusion Engineering and DesignIF 1.7出版社

AbstractDevelopment of effective and reliable coatings is a key to the viability of most, if not all, fusion blanket systems. The specific purpose and requirements of the coatings vary widely, depending on the blanket concept. The efforts on coating development to date have focused primarily on electrically insulating coatings for the self-cooled lithium concepts with a vanadium alloy structure, and the tritium barrier coatings for the water-cooled, Pb–Li (WCLL) breeder concepts with ferritic steel structures. Although other coating materials are under consideration, most of the effort on the electrically insulating coatings has focused on CaO and AlN coatings on V–4Cr–4Ti alloy structure. Most of the effort on the tritium barrier coating development is focused on Al2O3 coatings formed on aluminized ferritic steels. This paper presents an overview of the status of coating development for the various fusion concepts with emphasis on the materials interaction and chemistry control issues associated with the formation, stability and performance of the coatings.

日本語訳

要約効果的で信頼性の高い被覆材の開発は、すべてではないにせよ、ほとんどの核融合ブランケットシステムの実現可能性にとって鍵となる。被覆材の具体的な目的と要求は、ブランケットの概念によって大きく異なる。これまでの被覆材開発の取り組みは、主にバナジウム合金構造を有する自己冷却リチウム概念のための電気絶縁被覆と、フェライト鋼構造を有する水冷却Pb–Li(WCLL)増殖概念のためのトリチウムバリア被覆に焦点を当ててきた。他の被覆材料も検討されているが、電気絶縁被覆に関する取り組みの大部分は、V–4Cr–4Ti合金構造上のCaOおよびAlN被覆に集中している。トリチウムバリア被覆開発の取り組みの大部分は、アルミナ化フェライト鋼上に形成されたAl2O3被覆に焦点を当てている。本論文は、被覆材の形成、安定性、および性能に関連する材料相互作用と化学制御の問題に重点を置き、様々な核融合概念に対する被覆材開発の現状について概説する。

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