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Investigations on the homogeneity of single crystals of materials with variable composition grown by chemical transport reactions
Author(s) -
Krabbes G.,
Klosowski J.,
Oppermann H.,
Mai H.
Publication year - 1984
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.2170190408
Subject(s) - homogeneity (statistics) , microanalysis , electron probe microanalysis , chemical composition , chemistry , analytical chemistry (journal) , solid solution , chemical reaction , crystallography , electron microprobe , mineralogy , chromatography , organic chemistry , statistics , mathematics
To investigate the problem of homogeneity in crystals grown by chemical transport reactions (CTR) solid solutions Fe 1‐ y Co y S, Fe 1‐ y Ni y S, and Zn 1‐ y Co y O were choosen as model substances. Relative concentration profiles of Co and Ni, respectively, were measured by electron‐probe microanalysis and light absorption (in Zn 1‐ y Co y O only). No significant deviations from homogeneity were found for Fe 1‐ y Me y S, whereas in Zn 1‐ y Co y O the Co contents increase in the growth direction. A qualitative explanation due to different diffusivities in the solids can be given.