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Oxidation kinetics of BaF 2 single crystals
Author(s) -
Aronova A. M.,
Berezhkova G. V.
Publication year - 1979
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19790140207
Subject(s) - kinetics , annealing (glass) , oxidation process , materials science , diffusion , atmospheric temperature range , oxygen , chemical engineering , crystallography , analytical chemistry (journal) , mineralogy , chemistry , metallurgy , thermodynamics , organic chemistry , physics , quantum mechanics , engineering
Oxidation of BaF 2 single‐crystals as a result of annealing in air in the temperature range 600° to 900 °C leads to mechanical strengthening. The process kinetics was investigated. It is shown that oxidation takes place in the bulk of crystals owing to oxygen diffusion by formation and growth of oxidation centres. These centres are precipitates of a BaO phase which were revealed by chemical etching.