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Interdiffusion in the CaF 2 ‐YF 3 System
Author(s) -
VISSER R. G.,
SCHIAVI W. F.,
BERARD M. F.
Publication year - 1975
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1975.tb19018.x
Subject(s) - electron microprobe , impurity , analytical chemistry (journal) , dilution , diffusion , extrapolation , materials science , atmospheric temperature range , solid solution , chemistry , mineralogy , thermodynamics , metallurgy , mathematical analysis , physics , mathematics , organic chemistry , chromatography
An electron microprobe interdiffusion study was made in single crystals between 1200° and 1331°C over the solid‐solution compositional range 0 to 20 mol% YF 3 in CaF 2 . At constant temperature, the value of δ , the interdiffusion coefficient, increased approximately exponentially with increasing YF 3 content. As YF 3 content increased, the temperature dependence of δ decreased. Extrapolation of δ to 0% YF 3 combined with consideration of the defect formation mechanism at mite dilution allowed estimation of the impurity diffusion coefficient for Y in essentially pure CaF 2 .