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Thermal expansion of microcracks and grain boundaries in crystals (II). Thermal expansion and compression under pressure of intermicrocrystallite gaps in liquids
Author(s) -
Vlasov A. D.
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.2170250317
Subject(s) - thermal expansion , melting point , materials science , thermodynamics , thermal , compression (physics) , melting temperature , atmospheric temperature range , composite material , physics
The changes of melting points under pressure (melting curves) in terms of the microcrystallite model of liquids has been studied. These curves allowed the estimation of temperature dependencies of the scale factor n (or effective temperature) for microcrystallite surfaces for a representative group of liquids above the melting points. Further, by using the results of the author's previous works, general temperature relationship of the scale factor n for microcracks and gaps over a wide range of bulk temperature has been plotted. This relationship is characterized by the sharp jump at the melting point and is asymmetrical with respect to the melting temperature line. Solid‐liquid transitions from the standpoint of the microcrystallite model have been discussed.