Journal
CERAMICS INTERNATIONAL
Volume 37, Issue 5, Pages 1689-1691Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2010.10.007
Keywords
Boron carbide; Self-propagating high-temperature synthesis; Borax
Categories
Funding
- National Railway Ministry of China [2010J010-E]
- Science and Technology Commission Foundation of Shanghai City [08520513100]
- Science Foundation of the Education Commission of Shanghai City [09ZZ196, 10ZZ127]
- Key Disciplines of Shanghai City [P1502, J51504]
- Shanghai Institute of Technology [YJ2008-21]
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This paper deals with the formation of boron carbide (B4C) powders from Na2B4O7 + Mg + C system by self-propagating high-temperature synthesis (SHS) method. B4C without impurities could be obtained after the acid enrichment and distilled water washing. The reaction mechanism of SHS of B4C was proposed: the synthesis of B4C is a process involving the decomposition of Na2B4O7 into the intermediate phase B2O3, which reacts with Mg and carbon to form B4C. (C) 2010 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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