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Temperature dependence of grain growth in zone‐refined tin containing large additions of zinc in solid solution
Author(s) -
Fawzy A.,
Youssef S. B.,
Beshai M. H. N.,
Saad G.
Publication year - 1994
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170290309
Subject(s) - grain growth , annealing (glass) , zinc , tin , grain size , growth rate , chemistry , atmospheric temperature range , grain boundary , analytical chemistry (journal) , materials science , metallurgy , microstructure , thermodynamics , chromatography , geometry , mathematics , physics
Grain growth in zone‐refined tin containing high concentrations > 0.05 < 0.40 wt% Zn in solid solution have been investigated in the temperature range 70–160°C. It has been found that increasing the zinc content by a factor of 8 decreased the rate of grain growth by ∼ 30% at all annealing temperatures, and this was attributed to small variations of grain boundary mobility. In addition, the increase of annealing temperature from 70 to 160°C resulted in the increase of grain growth by a factor of ∼ 50 at any given concentration, which shows that the rate of grain growth is not strongly influenced by increasing the zinc concentration. The energy activating the growth process was calculated for all concentrations investigated and had a nearly constant value of ∼ 1 eV. An empirical formula was proposed relating the rate of grain growth and the solute concentration.