Accession Number : AD0630458
Title : THE DIFFUSION OF GOLD AND SILVER IN TIN SINGLE CRYSTALS.
Descriptive Note : Technical rept.,
Corporate Author : HARVARD UNIV CAMBRIDGE MASS DIV OF ENGINEERING AND APPLIED PHYSICS
Personal Author(s) : Dyson,Brian F.
Report Date : JAN 1966
Pagination or Media Count : 16
Abstract : The diffusivities D, of gold and silver in high purity tin have been measured along the 'C' and 'a' directions in the temperature range 135-225C. The results are characterized by a very large anisotropy of diffusion compared with that found for the self diffusion of tin. Furthermore, these solutes diffuse orders of magnitude faster than the self diffusion of tin and also they diffuse fastest along the 'c' direction, whereas tin diffuses fastest along the 'a' direction. This unusual behavior is interpreted as evidence that silver and gold dissolve interstitially in tin and diffuse by an interstitial mechanism.
Descriptors : (*DIFFUSION, METALS), (*GOLD, DIFFUSION), (*SILVER, DIFFUSION), (*TIN, SINGLE CRYSTALS), HEAT OF ACTIVATION, ANISOTROPY, CRYSTAL DEFECTS, SOLID SOLUTIONS
Subject Categories : Physical Chemistry
Properties of Metals and Alloys
Distribution Statement : APPROVED FOR PUBLIC RELEASE