Experimental and theoretical substantiations of stepwise mechanism of crystal formation from liquid phase
B.I. Kidyarov1, A.S. Stoporev2, A.Yu. Manakov2
1Rzhanov Institute of Semiconductor Physics SB RAS
2Nikolaev Institute of Inorganic Chemistry SB RAS
Abstract: This article reviews studies of the sequence of phase transitions of the «liquid – solid» and «solid – solid» type, including formation of intermediate phases (Ostwald’s rule of stages). It is emphasized that such transformations also take place in a nanoscale state with the formation of nano-nuclei of high-pressure phases. Experimental data on the kinetics of the nanoscale stage of gas hydrates nucleation in water-in-oil emulsions, pointing to the stepwise mechanism of the process, are discussed for the first time.
Keywords: nano-nuclei, phase transitions of the «liquid – solid» and «solid – solid» type, Ostwald’s rule of stages.
Kidyarov, B.I. Experimental and theoretical substantiations of stepwise mechanism of crystal formation from liquid phase / B.I. Kidyarov, A.S. Stoporev, A.Yu. Manakov // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials: Interuniversity collection of proceedings / Ed. by V.M. Samsonov, N.Yu. Sdobnyakov. – Tver: TSU, 2017. – I. 9. – P. 223-229.
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