Priority compositions of boron carbide crystals obtained by self-propagating high-temperature synthesis

Journal Article · Tue Sep 15 00:00:00 EDT 2015 · Crystallography Reports

DOI:https://doi.org/10.1134/S1063774515050089· OSTI ID:22472150

Konovalikhin, S. V.; Kovalev, I. D.; Vershinnikov, V. I. ^[1]

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1. Russian Academy of Sciences, Institute of Structural Macrokinetics and Materials Science (Russian Federation)

Splitting of reflections from boron carbide has been found for the first time by an X-ray diffraction study of polycrystalline mixture of boron carbide B{sub 15–x}C{sub x}, (1.5 ≤ x ≤ 3) and its magnesium derivative C{sub 4}B{sub 25}Mg{sub 1.42}. An analysis of reflection profiles shows that this splitting is due to the presence of boron carbide phases of different compositions in the sample, which are formed during crystal growth. The composition changes from B{sub 12.9}C{sub 2.1} to B{sub 12.4}C{sub 2.6}.

• OSTI ID: 22472150
• Journal Information: Crystallography Reports, Vol. 60, Issue 5; Other Information: Copyright (c) 2015 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7745
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BORON CARBIDES
CRYSTAL GROWTH
MAGNESIUM COMPOUNDS
PHASE STABILITY
PHASE STUDIES
PHASE TRANSFORMATIONS
POLYCRYSTALS
REFLECTION
SYNTHESIS
X-RAY DIFFRACTION