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The Nature of One‐sided Intergrowths on (00 1 ) of Triclinic Centrosymmetric K 2 Cr 2 O 7
Author(s) -
Heide G.,
Follner H.
Publication year - 1996
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170310207
Subject(s) - triclinic crystal system , crystallography , electron diffraction , supersaturation , potassium dichromate , crystal (programming language) , materials science , diffraction , crystal twinning , chemistry , crystal structure , inorganic chemistry , optics , physics , microstructure , programming language , organic chemistry , computer science
Systematic composite crystal growth can arise when larger crystals of the same type exhibit oriented intergrowth. One example of this is potassium dichromate (P 1 ) which SHUBNIKOV first described in 1912. In highly supersaturated solutions, a one‐sided roughening of its crystals occurs on (00 1 ). Electron micrographs show that this is due to the growth of platelet‐shaped crystals. Optical and X‐ray methods as well as electron channeling and BACK‐KIKUCHI diffraction patterns have shown that the growths are predominantly parallel intergrowths, about 10% of which are twins according to [010].