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Growth and dissolution of BaFCl crystals
Author(s) -
Somaiah K.
Publication year - 1983
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.2170180903
Subject(s) - dissolution , formic acid , cleavage (geology) , chemistry , etching (microfabrication) , morphology (biology) , crystallography , inorganic chemistry , materials science , chromatography , composite material , organic chemistry , layer (electronics) , fracture (geology) , biology , genetics
Single crystals of BaFCl have been growth by flux technique using BaF 2 and BaCl 2 . Etching with formic acid revealed dislocation etch pits on (001) cleavage faces of the crystals, at room temperature. The influence of etching parameters such as undersaturation, temperature and concentration of poison in the etchant is studied. Decreasing the undersaturation of formic acid by reducing the percentage of water and increasing the temperature of the etchant were found not to have any effect on the morphology of etch pits. However, as the CdCl 2 poison concentration is gradually increased, the orientation of the pits change from 〈100〉 to 〈110〉 at high concentration.