Decomposition of the metastable phase in the silver-germanium system

Kirchner H.O.K., Ramachandrarao P. and Chadwick G.A. (1972) Decomposition of the metastable phase in the silver-germanium system. Philosophical Magazine, 25 5: 1151-1160. doi:10.1080/14786437208226858


Author Kirchner H.O.K.
Ramachandrarao P.
Chadwick G.A.
Title Decomposition of the metastable phase in the silver-germanium system
Journal name Philosophical Magazine
ISSN 0031-8086
Publication date 1972-01-01
Sub-type Article (original research)
DOI 10.1080/14786437208226858
Volume 25
Issue 5
Start page 1151
End page 1160
Total pages 10
Language eng
Subject 3100 Physics and Astronomy
2200 Engineering
Abstract The decomposition behaviour of the metastable h.c.p. phase in a splat- cooled silver-23 at. % germanium alloy was studied by differential thermal analysis, X-ray and electron metallographic techniques. A two-stage decomposition process was observed. The activation energies for the two stages were found to be 0·91±0·09 eV/atom and 1·95±0·19 eV/atom, respectively. The first stage is associated with the transformation from h.c.p. to metastable f.c.c. solid solution, the second stage represents the precipitation of germanium from this solid solution. The total enthalpy of transformation was found to be 2·21±0·22 meV/atom.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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