Morphology of polymorphic transformations in a K0.940Cs0.060NO3 single crystal
DOI:
https://doi.org/10.15330/pcss.26.1.49-52Keywords:
morphology of crystals, transformations in crystal, single crystalAbstract
The article considers the results of microscopic research on the growth morphology of crystals of modifications II and III during the transformation of II«III into K0.940Cs0.060NO3. The equilibrium temperature between modifications II and III was established, which is equal to Т0 = 457 ± 1 К. Transformations II«III in the crystal under study occur with the formation and growth of an embryo of a daughter modification inside the matrix.
References
A. Edward, A determination of the complete crystal structure of potassium nitrate, Z. Krist., 80, 154-158, (1943); https://doi.org/10.1524/zkri.1931.80.1.154.
P.E. Tahvonen, X-ray investigation of molecular rotation in potassium nitrate crystal, Ann. Acad. Sci. Fennical, ser. A, 44, 20 (1947).
K. Nimmo, B.W. Lucas, The crystal structures of γ- and β-KNO3 and the α←γ←β phase transitions, Acta. Cryst. B32, 1968 (1976).
L. Pauling, J. Sherman Note on the crystal structure of rubidium nitrate Z. Kristallogr, 84. 213 (1933).
U. Korhonen, The Crystal Structure of CsNO3, Ann. Acad. Sci. Fennical., Ser.A, 1, 1 (1953).
S.W. Kennedy, M. Odlyha Polimorphic transformation II→III in potassium nitrate. Multiple orientation. Aust. J. Chem., v. 27. p. 1121, (1974); https://doi.org/10.1071/CH9740209.
E.W. Courtenay, S.W. Kennedy Solition growth crystal system and transformation of crystals phase II RbNO3. Aust. J. Chem. ,27. 209, (1974).
Y.G. Asadov. V.İ. Nasirov. G.A. Jabrailova, Mophology of crystal at polymorphic transformation in KNO3, AgNO3 and NH4NO3 single crystals, J. Crystal Crowth, 15, 45 (1972). https://doi.org/10.1016/0022-0248(72)90318-1.
Y. Shinnaka, S. Yamomoto, X-ray study of orientational disorder in cubic RbNO3. J. Phys. Soc. Jpn., 50. 2091, (1981).
Ch.M. Alekperov, V.I. Nasirov, F.G. Maharramova, Yu.G. Asadov, Morphology and kinetics of crystal growth during polymorphic transformations in RbNO3 and CsNO3 single crystals, Preprint, Azerb., 4, 38, (1996);
H. Zamali, M. Jemal Phase diagrams of binary systems: AgNO3-KNO3 and AgNO3-NaNO3. J. Phase Equilibria, 16, 235 (1995); https://doi.org/10.1007/BF02667307.
S.V. Baryshkov, E.V. Charnaya, E.V. Stukova, et al., Dielectric properties of crystalline binary mixtures KNO3-AgNO3 in nanoporous silicate matrices, SSP, 52, 365, (2010); https://journals.ioffe.ru/articles/viewPDF/1734
Xu. Kangcheng, Application of Raman in phase eqibilibirium studies: the structures of substitutional solid solutions of KNO3 by RbNO3, J. Mater. Sci., 34, 3447 (1999); https://doi.org/10.1023/A:1004649603036.
J. Liu, C. Duan, M. Ossovski, W. Mei, R.W. Smith, J.R. Hardy Molecular dynamics stimulation of phase transition in RbNO3 and CsNO3. J. Sol. State. Chem., 160, 222, (2001); https://doi.org/10.1006/jssc.2001.9226.
E.A. Secco, R.A. Secco Heats of solution/substitution in TlNO3 and CsNO3 crystals and in RbNO3 and CsNO3 crystals from heats of transition: The complete phase diagrams of TlNO3-CsNO3 and RbNO3-CsNO3 systems. J. Phys. and Chem. of Solids, 63(3), 433 (2002); https://doi.org/10.1016/S0022-3697(01)00157-3.
E.S. Schlemper, W.C. Hamilton Phase formation in the system RbNO3-CsNO3. J. Phys. Chem. Sol., 45, 4498 (1966).
V.I. Nasirov, A.F. Khazieva, Yu.G. Asadov Polymorphic single crystal single crystal transformations in Rb0.975Cs0.025NO3. Cryst. Reports, 56, 1077, (2011); https://doi.org/10.1134/S1063774511050208.
Yu.G. Asadov, V.I. Nasirov, Study of the kinetics of polymorphic transformation in potassium nitrate single crystals, Crystallography, 17, 991 (1972).
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