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Effect of Hydrostatic Pressure on the Diffusion of Silver in Indium
Author(s) -
Ott A.
Publication year - 1971
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220430123
Subject(s) - diffusion , indium , hydrostatic pressure , tetragonal crystal system , impurity , metal , materials science , volume (thermodynamics) , diffusion process , chemistry , analytical chemistry (journal) , hydrostatic equilibrium , perpendicular , gallium , crystallography , thermodynamics , crystal structure , metallurgy , chromatography , physics , organic chemistry , knowledge management , innovation diffusion , geometry , mathematics , quantum mechanics , computer science
The pressure effect on the silver impurity diffusion has been measured parallel and perpendicular to the tetragonal axis in single crystals of indium metal. A thin film radioactive tracer deposition and sectioning method was used. The experiments were performed at 96.1 and 112.3 °C, and at hydrostatic pressures varying from 0.9 to 7.7 kbar. The diffusion rate was observed to decrease with increasing pressure and the activation volume for the diffusion process was determined to (6.4 ± 0.6) cm 3 /mol, with no detectable dependence on either temperature or crystallographic orientation. Comparison with systematics and theoretical arguments suggests interstitial diffusion.