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High‐pressure zinc oxysulphide phases in the ZnO–ZnS system
Author(s) -
Salak Andrei N.,
Ignatenko Oleg V.,
Zhaludkevich Aliaksandr L.,
Lisenkov Aleksey D.,
Starykevich Maksim,
Zheludkevich Mikhail L.,
Ferreira Mário G. S.
Publication year - 2015
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201431820
Subject(s) - wurtzite crystal structure , zinc , microstructure , scanning electron microscope , materials science , solubility , recrystallization (geology) , chemical engineering , diffraction , solid solubility , crystallography , phase (matter) , crystal structure , ceramic , mineralogy , analytical chemistry (journal) , solid solution , metallurgy , chemistry , composite material , organic chemistry , optics , geology , paleontology , physics , engineering
Wurtzite–zincblende mixture, ZnO–ZnS (1:1 wt.%), was thermally treated at 5 GPa in order to explore a possible mutual solubility of the end members and formation of zinc oxysulphide phases under high pressure. The data on phase content, crystal structure, and microstructure from the X‐ray diffraction and the scanning electron microscopy studies of the obtained compacts (ceramics) were compared and analyzed. It was found that as temperature is increased, the following processes occur in the ZnO–ZnS mixture under pressure: release of the mechanical stresses (between about 300 and 700 °C), recrystallization of the initial wurtzite and zincblende phases (700–900 °C), reaction between the end members (above ∼900 °C) that results in formation of mixed oxysulphides based on ZnO and ZnS, respectively, with the mutual solubility rate of about 8 mol.%.