Al-Ag系の反応拡散
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概要
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Reaction-diffusion of the Al-Ag system was investigated by the electron probe micro-analysis. Experimental results obtained were as follows.(1) Intermediate phases ζ and μ were formed by the diffUsion between aluminum and silver.(2) Thickness of the ζ phase was expressed by the equation of W=k√t, where t was the diffusion time and k the growth rate constant. And the k was expressed as follows.k21=3.1×10-1exp(-28000/RT)cm2/sec (360°C440°C: ζandμphases)k22=6.6×10-1exp(-29000/RT)cm2/sec (480°C560°C: onlyζphase)k23=2.6×10-1exp(-28000/RT)cm2/sec (360°C560°C: all temperature range measured).(3) Interdiffusion coefficients in the ζ phase were expressed as follows.D1=2.1×10-1exp(-27000/RT)cm2/sec (360°C440°C: ζandμphases)D2=2.1×10-1exp(-27000/RT)cm2/sec (480°C560°C: onlyζphase)D3=2.5×10<-1>exp(-27000/RT)cm2/sec (360°C560°C: all temperature range measured).(4) It was shown by the Kirkendal effect that aluminum diffused faster than silver.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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