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Observation of defects and the incommensurate phase in berlinite crystals by high‐temperature X‐ray topography
Author(s) -
Zarka A.,
Capelle B.,
Philippot E.,
Jumas J. C.
Publication year - 1986
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/s002188988608891x
Subject(s) - synchrotron radiation , phase (matter) , synchrotron , x ray , materials science , bragg's law , optics , beam (structure) , bragg peak , radiation , crystallography , diffraction , physics , chemistry , quantum mechanics
Growth defects and the incommensurate phase have been observed in synthetic berlinite (AlPO 4 ) samples. This study was performed by high‐temperature X‐ray topography using synchrotron radiation at LURE (Orsay, France). Some results concerning the defects observed above room temperature are presented. The incommensurate phase was investigated by using a narrow beam which allows the observation and analysis of the satellites around Bragg spots.