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Etude des défauts dans des monocristaux naturels de béryl. I. Observations des dislocations
Author(s) -
Scandale E.,
Scordari F.,
Zarka A.
Publication year - 1979
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889879011808
Subject(s) - burgers vector , dislocation , materials science , crystallography , condensed matter physics , lattice (music) , physics , chemistry , acoustics
The lattice defects of beryl single crystals from Brazil and Madagascar have been studied by X‐ray topography. Two types of linear defects are observed: channels and grown‐in dislocations. Slip systems and Burgers‐vector moduli are determined. Some calculations of directions of minimum dislocation energy are given and they are in quite good agreement with the observations.