A New Measurement and Evaluation of Wettability between Solid and Liquid Metals in Ultra-High Vacuum. (2nd Report). Experimental Examination of Wettability and Atomic Diffusion.

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  • 超高真空中での液体金属の濡れ性測定と評価　２　　液体金属の濡れ性と原子拡散の検討
  • チョウコウシンクウ チュウ デ ノ エキタイ キンゾク ノ ヌレセイ ソクテイ ト ヒョウカ ダイ2ホウ エキタイ キンゾク ノ ヌレセイ ト ゲンシ カクサン ノ ケントウ
  • Experimental Examination of Wettability and Atomic Diffusion
  • 液体金属の濡れ性と原子拡散の検討

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This paper presents experimental results of the wettability and atomic diffusibility of liquid metals on clean solid surfaces. Six types of liquid metals; Au, Ag, Cu, Al, Fe, Ti, and three types of substrates; tungsten, glass-like carbon, highly oriented pyrolytic graphite (HOPG), are used as the specimens. Contact angles of liquid metals are measured with good reproducibility using a continuous Ar sputter cleaning process as is introduced in the previous paper. Interaction energies of these systems are obtained. As liquid Fe has different diffusibility for two carbon substrates, glass-like carbon and HOPG substrates, atomic concentrations of the substrate surfaces are investigated using scanning Auger electron spectroscopy. Consequently, it is found that liquid Fe has atomic diffusibility with a glass-like carbon surface but not with HOPG (001) surface.

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