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Temperature-dependent X-ray and neutron diffraction study of BiB3O6

✍ Scribed by Stein, Wolf-Dieter; Cousson, Alain; Becker, Petra; Bohatý, Ladislav; Braden, Markus

Book ID
111982693
Publisher
Oldenbourg Wissenschaftsverlag
Year
2007
Tongue
English
Weight
597 KB
Volume
222
Category
Article
ISSN
2194-4946

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✦ Synopsis

The structure of bismuth triborate has been analyzed by the combination of neutron and X-ray diffraction on powder and on single-crystalline samples. Bismuth triborate exhibits a distinct anisotropic thermal expansion with the coefficient along a being negative over the wide temperature range studied, 20 to 800 K. The remarkable crystal structure of bismuth triborate with a netlike linkage of rigid borate units [BO~3~] and [BO~4~], is found to generate the uncommon thermal expansion behavior. Our investigations gave no evidence for a structural phase transition in bismuth triborate between 3.5 and 999 K at ambient pressure.

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