Formation of nanocrystalline niobium carbide (NbC) with a convenient route at low temperature

被引：46

作者：

Ma, Jianhua ^{[1
,2
]}

Wu, Meining ^{[1
]}

Du, Yihong ^{[3
]}

Chen, Suqin ^{[1
]}

Jin, Wu ^{[1
]}

Fu, Li ^{[1
]}

Yang, Qiongyao ^{[1
]}

Wen, Aifei ^{[1
]}

机构：

[1] Wenzhou Univ, Coll Chem & Mat Engn, Wenzhou 325027, Zhejiang, Peoples R China

[2] Wenzhou Univ, Adv Mat Res Ctr Wenzhou, Nanomat & Chem Key Lab, Wenzhou 325027, Zhejiang, Peoples R China

[3] Wenzhou Univ, City Coll, Wenzhou 325035, Zhejiang, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 475卷 / 1-2期

关键词：

Nanostructured materials; Niobium carbide; Chemical synthesis; X-ray diffraction; Thermal analysis; CRACK-GROWTH; OXIDATION; ENRICHMENT; NITRIDE;

D O I：

10.1016/j.jallcom.2008.07.039

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nanocrystalline NbC has been prepared via a convenient route by the reaction of metallic magnesium powders with niobium pentoxide and basic magnesium carbonate in an autoclave at 550 degrees C. X-ray powder diffraction pattern indicated that the product was cubic niobium carbide, and the cell constant was a = 4.461 angstrom. Transmission electron microscopy (TEM) image showed that it consisted of particles with an average size of about 30 nm in diameter. The product was also studied by BET and TGA. It had good thermal stability and oxidation resistance below 400 degrees C in air. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：415 / 417

页数：3

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