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On the chemical vapour transport of nickel titanate with selenium tetrachloride
Author(s) -
Bieger W.,
Piekarczyk W.,
Krabbes G.,
Stöver G.,
van Hai Ngyen
Publication year - 1990
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.2170250406
Subject(s) - non blocking i/o , nickel , chemical vapor deposition , selenium , deposition (geology) , chemistry , titanate , tetrachloride , inorganic chemistry , materials science , organic chemistry , paleontology , ceramic , sediment , tin , biology , catalysis
The chemical vapour transport (CVT) of NiTiO 3 with SeCl 4 is reported. In addition to small NiTiO 3 crystals a more or less quantity of solid NiCl 2 is deposited in the deposition zone. At higher temperature gradients the solid which is deposited besides NiCl 2 is NiO. The transport behaviour is satisfactory explained using two thermodynamical models: the model of connected equilibrium states and the four‐stage model.