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Investigation of the ferroelastic domain structure in lead phosphate
Author(s) -
Chabin M.,
Gilletta F.,
Ildefonse J. P.
Publication year - 1977
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/s0021889877013430
Subject(s) - crystal twinning , domain (mathematical analysis) , materials science , crystallography , strain (injury) , orientation (vector space) , condensed matter physics , chemistry , geometry , physics , mathematics , anatomy , mathematical analysis , microstructure , biology
The ferroelastic domain pattern observed in Pb 3 (PO 4 ) 2 at room temperature is analysed in terms of twinning by pseudosymmetry. The characteristics of the three kinds of domains and the two types ( W and W ′) of walls are determined and agree with the experimental observations. The variation with temperature of the spontaneous strain is deduced from the investigation of the orientation of W ′ walls.