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Nucleation in a gas‐solid state reaction
Author(s) -
Wrobel R. J.,
Arabczyk W.,
Narkiewicz U.
Publication year - 2012
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.201200176
Subject(s) - nucleation , crystallite , sequence (biology) , solid state , nucleus , crystallography , crystal (programming language) , gas phase , chemical physics , materials science , domain (mathematical analysis) , chemistry , computer science , organic chemistry , mathematics , mathematical analysis , biochemistry , programming language , biology , microbiology and biotechnology
A nucleation in a reaction of a gas with a solid state where one of the products is solid (GSR‐S) has been discussed. It was pointed out that the phenomenon observed for nanopowders, i.e. nucleation in sequence of the crystallites sizes, should be valid in case of defected monocrystals. However in such a case the constituents of a monocrystal, i.e. mosaic domains separated by structural defects, should undergo phase transition in sequence of size or, in other words, the time needed for the initiation of a nucleus in the case of a small domain is shorter than in the case of big one. Finally the less defected the crystal is, the bigger domains are, and thus the longer nucleation time is needed.