Kinetics of the growth of filamentary KH2PO4 crystals on a seed crystal


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Abstract

At oversaturations exceeding the inert range end for face {101} due to the presence of admixture Al(NO3)3 · 9H2O, a new phase is observed during the growth of this face in the form of filamentary crystals. Some experimental dependences of the growth rate of filamentary potassium dihydrophosphate (KH2PO4) crystals on the oversaturation have been obtained at different admixture concentrations. The growth of filamentary crystals occurs by the mechanism of two-dimensional nucleation. Their formation is governed by the effect of [AlHPO4]+ complexes in the form of Cabrera and Vermilyea stoppers.

About the authors

E. K. Titaeva

Lobachevskii National Research State University

Author for correspondence.
Email: zhe_1604@mail.ru
Russian Federation, pr. Gagarina 23, Nizhny Novgorod, 603950

M. S. Kuritsyn

Institute of Applied Physics

Email: zhe_1604@mail.ru
Russian Federation, ul. Ul’yanova 46, Nizhny Novgorod, 603950

A. N. Noskova

Lobachevskii National Research State University

Email: zhe_1604@mail.ru
Russian Federation, pr. Gagarina 23, Nizhny Novgorod, 603950

V. N. Portnov

Lobachevskii National Research State University

Email: zhe_1604@mail.ru
Russian Federation, pr. Gagarina 23, Nizhny Novgorod, 603950

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