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A low‐temperature apparatus for single‐crystal diffractometry. The unit‐cell dimension of α‐quartz in the temperature range 86–298 K
Author(s) -
Danielsson S.,
Grenthe I.,
Oskarsson Å.
Publication year - 1976
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/s0021889876010418
Subject(s) - quartz , diffractometer , atmospheric temperature range , crystal (programming language) , materials science , single crystal , crystallography , range (aeronautics) , analytical chemistry (journal) , crystal structure , chemistry , composite material , thermodynamics , physics , chromatography , computer science , programming language
A detailed description of an automatic low‐temperature apparatus to be used in single‐crystal diffractometry is given. The crystal is cooled by a stream of nitrogen gas. Prevention of ice formation on the crystal is achieved by heating the outer parts of the gas stream by a conical metal device. The unit‐cell dimensions of α‐quartz have been determined in the temperature range 86–298 K with this apparatus on a four‐circle diffractometer of type CAD‐4.