OS0506 走査型電子顕微鏡内における金属極細線のジュール熱接合(微視構造を有する材料の変形と破壊,オーガナイズドセッション)

概要

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The joining of two extremely thin Pt wires has been successful in air environment and the parameter that govems the melting phenomenon at the contact of the wires has been reported. The joining of Pt wires in scanning electron microscope is achieved with a current lower than that in air environment due to the adiabatic effect under vacuum environment. The difference between the joining conditions of the air and the vacuum environments is calibrated by a thermal function, and based on this two Pt wires can be joined together without relying on the surrounding environmental condition. The melting and solidification processes at the contacting portion of the wires are also observed by in-situ observation with scanning electron microscope.
2009-07-24