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Solid–vapor equilibrium in quasi‐binary CdTe—ZnTe
Author(s) -
Greenberg J. H.,
Guskov V. N.,
Alikhanyan A. S.
Publication year - 2003
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.200310073
Subject(s) - sublimation (psychology) , vapor pressure , solidus , phase diagram , isothermal process , isobaric process , analytical chemistry (journal) , chemistry , knudsen number , thermodynamics , ternary operation , ternary numeral system , binary system , solid solution , binary number , phase (matter) , chromatography , physics , arithmetic , mathematics , alloy , computer science , psychology , organic chemistry , psychotherapist , programming language
Total vapor pressure measurement and Knudsen cell mass spectrometry have been applied to study sublimation processes in the quasi‐binary system CdTe—ZnTe at temperatures 780 K – 1350 K. This system was shown to correspond to the vapor pressure minimum in the pressure–temperature–composition (P–T–X) phase diagram of the ternary system Cd—Zn—Te. The shape of the solidus and vaporus surfaces was traced via experimental isothermal and isobaric sections of the P min area up to the near‐melting region. Relationship between the composition of the crystal, vapor pressure and composition of the vapor was determined in the whole concentration range. At temperatures above 780 K CdTe—ZnTe was found to be a continuous solid solution with incongruent sublimation, whereas at T = 780 K a tendency to phase separation was observed.