首页|Boronation reaction between molybdenum or tungsten powder and boron carbide in aluminium melt
Boronation reaction between molybdenum or tungsten powder and boron carbide in aluminium melt
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NSTL
Elsevier
? 2022 Elsevier LtdMolybdenum or tungsten borides are excellent high-temperature ceramics or electrocatalysis materials. In this paper, Mo or W borides were prepared by boronizing Mo or W powder in Al melt with B4C as boron source. By thermodynamic calculation, the feasibility of preparing various borides and the stability of borides in Al melt were evaluated. Through high temperature reaction at 1523 K and the following acidic leaching, single phase MoAlB, W2B5, WB, and W2B5 powders were successfully synthesized. Owing to the decarburizing function of Al melt, C contents of various boride products were below 1 wt%. In addition, the phase transition processes of various products in the synthesis stage were revealed.
Al meltBoridesBoronationDecarbonization
Wu Y.-D.、Zhang G.-H.、Wang Y.
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State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing
NSTL
Elsevier
