Growth of faces of K2Co x Ni1 – x (SO4)2 · 6H2O mixed crystals

Data on the morphology and normal growth rate of the (110) and (001) faces, velocities of step motion, and slopes of dislocation hillocks on the (001) face of K2CoxNi1–x(SO4)2 · 6H2O crystals at different supersaturations of solutions with a Co/Ni ratio equal to 1: 1 or 1: 2 have been obtained using...

Full description

Saved in:
Bibliographic Details
Published in:Crystallography reports 2017-01, Vol.62 (6), p.976-982
Main Authors: Vorontsov, D A, Voloshin, A E, Grebenev, V V, Vasilieva, N A, Kim, E L, Manomenova, V L, Rudneva, E B, Masalov, V M, Zhokhov, A A, Emelchenko, G A
Format: Article
Language:English
Subjects:
Dislocations
Economic impact
Kinetic coefficients
Michelson interferometers
Mixed crystals
Morphology
Single crystals
Supersaturation
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Data on the morphology and normal growth rate of the (110) and (001) faces, velocities of step motion, and slopes of dislocation hillocks on the (001) face of K2CoxNi1–x(SO4)2 · 6H2O crystals at different supersaturations of solutions with a Co/Ni ratio equal to 1: 1 or 1: 2 have been obtained using a Michelson interferometer. The morphology of the (110) faces is found to be the same for solutions of both compositions. Powerful dislocation sources with large Burgers vectors dominate on the (001) face. The morphology of the (001) surface is rougher than that of (110), especially in a 1: 2 solution at high supersaturation. The (110) faces grow more slowly as compared with (001). The kinetic coefficients of steps on the (001) face are identical in the 1: 1 and 1: 2 solutions. The influence of the kinetic and morphological characteristics of (001) faces on the single-crystal quality is analyzed.
ISSN:1063-7745
1562-689X
DOI:10.1134/S1063774517060256