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Vapour transport of CdCr 2 S 4 and HgCr 2 Se 4 : Chemical equilibrium and crystal growth
Author(s) -
Belyaev V. K.,
Nikiforov K. G.,
Radautsan S. I.,
Bazakutsa V. A.
Publication year - 1989
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.2170240407
Subject(s) - crystal (programming language) , chemistry , crystal growth , chemical composition , phase (matter) , analytical chemistry (journal) , thermodynamics , crystallography , physics , computer science , environmental chemistry , organic chemistry , programming language
Theoretical and experimental studies of the CdCr 2 S 4 (HgCr 2 Se 4 ): CrCl 3 systems have been performed for the crystal composition control in the chemical transport growth. The balance partial pressures of the components have been calculated in a wide temperature range. It is shown that the CdCr 2 S 4 composition control can take place with the powerful change of the transport agent quantity. Such control for the HgCr 2 Se 4 : CrCl 3 system is more difficult. The calculated vapour phase composition is in good agreement with the determined one based on the measurements of the sound speed and transport rate.