Structure of B6O boron-suboxide by Rietveld refinement

The structures of the B6O samples prepared by oxidising boron with ZnO at temperatures of 1350-1500 C in an argon atmosphere were refined by the Rietveld method. The B6O samples were found to contain an amorphous phase from their XRD profiles in addition to B6O diffraction peaks. The results indicat...

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Bibliographic Details
Published in:Journal of materials science 1993-01, Vol.28 (8), p.2129-2134
Main Authors: Kobayashi, M., Higashi, I., Brodhag, C., Thévenot, F.
Format: Article
Language:English
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Summary:The structures of the B6O samples prepared by oxidising boron with ZnO at temperatures of 1350-1500 C in an argon atmosphere were refined by the Rietveld method. The B6O samples were found to contain an amorphous phase from their XRD profiles in addition to B6O diffraction peaks. The results indicate that the B6O samples have oxygen deficiencies with 0.76(6) oxygen occupancy. A radial distribution function method applied to an extracted portion of the amorphous phase, suggests that each amorphous phase has nearly similar short-range order structure to that of the alpha-tetragonal boron type rather than to those of any other related boron phases. 16 refs.
ISSN:0022-2461
1573-4803
DOI:10.1007/BF00367573