Simple synthesis of nano-sized refractory metal carbides by combustion process

被引：14

作者：

Won, Hyung Il ^{[1
]}

Hayk, Nersisyan ^{[1
]}

Won, Chang Whan ^{[1
]}

Lee, Hyuk Hee ^{[2
]}

机构：

[1] Chungnam Natl Univ, Rapidly Solidified Mat Res Ctr RASOM, Taejon 305764, South Korea

[2] Korea Res Inst Chem Technol, Taejon 305600, South Korea

来源：

JOURNAL OF MATERIALS SCIENCE | 2011年 / 46卷 / 18期

关键词：

TUNGSTEN CARBIDE; NANOCRYSTALLINE METALS; MECHANICAL-PROPERTIES; MOLYBDENUM CARBIDE; THERMAL PLASMA; POWDER; ALLOYS; WC/CO;

D O I：

10.1007/s10853-011-5562-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Combustion reactions of transition metal oxides (WO(3), MoO(3), Ta(2)O(5), Nb(2)O(5), ZrO(2), and TiO(2)), magnesium, carbon, and sodium fluoride produce a range of nanostructured transition metal carbides (W(2)C, Mo(2)C, TaC, NbC, ZrC, and TiC) with low amounts of free carbon. Sodium fluoride improves unfavorable combustion regimes and facilitates the carburization of metal carbides. The average particle size of carbides prepared in this study was below 100 nm in pure phase. The carbides were characterized by X-ray diffraction, scanning electron microscopy, specific surface area analysis, and carbon analysis.

引用

页码：6000 / 6006

页数：7

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