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Etch‐pit study of dislocation microstructure at the precipitates in NaCl:Ni crystals
Author(s) -
Andreev G. A.,
Klimov V. A.
Publication year - 1982
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.2170170214
Subject(s) - climb , dislocation , microstructure , materials science , precipitation , crystallography , etching (microfabrication) , isotropic etching , bent molecular geometry , metallurgy , composite material , chemistry , thermodynamics , physics , layer (electronics) , meteorology
The chemical etching technique was used to study the precipitation‐induced dislocation microstructures in NaCl:Ni crystals with 110 rod‐like precipitates. The comparison was made of the results obtained by the etch pit and decoration studies. The coincidence of the patterns suggests the prismatic dislocation loops and helices of the interstitial type to be only produced at elevated temperatures (above 300°C). The smallest size loops are removed by climb on slow cooling. These loops sometimes persist in quenched crystals.