Synthesis of nanosized tungsten powder

Guangfeng Lu; Junjie Hao; Zhimeng Guo; Ruizhu Zhang; Ji Luo; Liying Zhang

Volume 12 Issue 4

Aug. 2005

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文章导航 > 矿物冶金与材料学报（英文版） > 2005 > 12(4) : 360-364.

Cite this article as:

Guangfeng Lu, Junjie Hao, Zhimeng Guo, Ruizhu Zhang, Ji Luo, and Liying Zhang, Synthesis of nanosized tungsten powder, J. Univ. Sci. Technol. Beijing , 12(2005), No. 4, pp.360-364.

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Materials

Synthesis of nanosized tungsten powder

Guangfeng Lu^1), ,,
Junjie Hao¹⁾,
Zhimeng Guo¹⁾,
Ruizhu Zhang^1,2),
Ji Luo¹⁾,
Liying Zhang¹⁾

1) Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China
2) Department of Mechanical and Engineering, North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou 450045, China

基金项目:

This work was financially supported by the National Science Funds of Beijing (No.2052015).

通信作者:
Guangfeng Lu E-mail: gflujn@163.com

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- 文章访问数: 245
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中文摘要

Nanosized tungsten powder was synthesized by means of different methods and under different conditions with nanosized WO₃ powder. The powder and the intermediate products were characterized using XRD, SEM, TEM, BET (Brunauer Emmett Teller Procedure) and SAXS (X-ray diffracto-spectrometer/Kratky small angle scattering goniometer). The results show that nanosized WO₃ can be completely reduced to WO₂ at 600℃ after 40 min, and WO₂ can be reduced to W at 700℃ after 90 min, moreover, the mean size of W particles is less than 40 nm. Furthermore, the process of WO₃→WO₂→W excelled that of WO₃→W in getting stable nanosized tungsten powder with less grain size.

关键词:

Nano-tungsten powder ;
reduce ;
SAXS

Materials

Synthesis of nanosized tungsten powder

Guangfeng Lu^1), ,,
Junjie Hao¹⁾,
Zhimeng Guo¹⁾,
Ruizhu Zhang^1,2),
Ji Luo¹⁾,
Liying Zhang¹⁾

Author Affilications

1) Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China
2) Department of Mechanical and Engineering, North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou 450045, China

Funds:
This work was financially supported by the National Science Funds of Beijing (No.2052015).
Received: 08 November 2004;

Abstract:

Keywords:

Nano-tungsten powder ;
reduce ;
SAXS

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