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Crystal structure of new composition boron-rich boron nitride using Raman spectroscopy

Published online by Cambridge University Press:  18 February 2016

Hidetoshi Saitoh ,
Katsuhito Yoshida  and
Walter A. Yarbrougha
Hidetoshi Saitoh
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802
Katsuhito Yoshida
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802
Walter A. Yarbrougha
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802
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Extract

The synthesis of poly crystalline boron nitride films, with β-rhombohedral boron crystallites, was accomplished with BCl3–NH3–H2 in a tungsten hot filament chemical vapor deposition apparatus. Raman spectra and XRD results revealed that the crystal structure of the boron nitride films is similar to rhombohedral boron carbide B4C. The composition of these crystallites by XPS was found to give a ratio of boron to nitrogen of 3 : 1 . These results suggest that the boron nitride crystals obtained in this work are previously unreported compounds of a rhombohedral boron-rich boron nitride, analogous to boron carbide, B4C.

Type
Research Article
Information
Journal of Materials Research , Volume 8 , Issue 1 , January 1993 , pp. 8 - 11
Copyright
Copyright © Materials Research Society 1993

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