アルアカリ・バリウム・シリカガラスとジュメット線との封着

概要

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Two kinds of dumet wires (copper clad Fe-Ni alloy wires) with thick and thin copper oxide layer, were sealed into an alkali barium silica glass by heating moderately and excessively, respectively. Concentration distribution of elements along radial direction was measured by an electron probe microanalyzer.The results were as follows:1) The distance of diffusion front of copper from the surface of the wire was about 70μ and 30 to 40μ for excessively and moderately heated seal, respectively.2) Barium showed peculiar distribution. Maximum and minimum points were formed at about 5 and 10μ distance from the surface of wire, respectively. The extremums were distinct in excessively heated seals.3) Sodium and potassium showed flat distribution in glass except high concentration at copper-glass interfaces.4) In moderately heated seals, copper oxide partly disolved into glass. The remainder seemed to behave as bridging layer between copper and copper-containing glass.In Excessively heated seals, most of copper oxide diffused into glass. Very thin layer, however, was presumed to remain behaving as bridging layer between copper and copper-containing glass.
社団法人日本セラミックス協会の論文
1975-07-01