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

At oversaturations exceeding the inert range end for face {101} due to the presence of admixture Al(NO 3 ) 3 · 9H 2 O, 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 dihydrophosphat...

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Bibliographic Details
Published in:Physics of the solid state 2017-08, Vol.59 (8), p.1619-1622
Main Authors: Titaeva, E. K., Kuritsyn, M. S., Noskova, A. N., Portnov, V. N.
Format: Article
Language:English
Subjects:
Crystal growth
Nucleation
Phase Transitions
Physics
Physics and Astronomy
Potassium
Solid State Physics
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Summary:At oversaturations exceeding the inert range end for face {101} due to the presence of admixture Al(NO 3 ) 3 · 9H 2 O, 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 (KH 2 PO 4 ) 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 [AlHPO 4 ] + complexes in the form of Cabrera and Vermilyea stoppers.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783417080303