[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.4150/KPMI.2003.10.1.001

Synthesis of Nano-sized Tungsten Carbide Powders by Vapor Phase Reaction of Tungsten Ethoxide

가미다 (한국기계연구원 나노분말재료그룹)
하국현 (한국기계연구원 나노분말재료그룹)
김병기 (한국기계연구원 나노분말재료그룹)

Publication Information

Journal of Powder Materials / v.10, no.1, 2003 , pp. 1-5 More about this Journal

Abstract

Nano-sized WC powders were synthesized by vapor phase reaction using the precusor of tungsten ethoxide under helium and hydrogen atmosphere. The phases of the powder were varied with reaction Bone and gas flow rate. The powder size was about 30nm in diameter, and the tungsten carbide powder was coated by carbon layer. The synthesis of nano-sized WC powders was promoted as the hydrogen gas flow rate became higher. Inversely, tungsten oxide was formed by increasing the flow rate of helium gas. The synthesized powders were analyzed by XRD, FE-SEM, carbon analyzer etc.

Keywords

WC powders; Tungsten ethoxide; Yapor phase reaction; Carbon layer;

Citations & Related Records

Reference

1	/ [ A. Kato;J. Hojo;Y. Okabe ] / Memoirs of the Faculty of Engineering
2	/ [ R. W. Siegel;G. E. Fougere ] / NanoStruc. Mater. DOI ScienceOn
3	/ [ K. Jia;T. E. Fisher;B. Gallois ] / NanoStruc. Mater. DOI ScienceOn
4	/ [ K. Okuyama;Y. Kousaka;N. Tohge;S. Yamamoto;J. J. Wu;R. C. Flagan;J. H. Seinfield ] / AIChE DOI ScienceOn
5	/ [ X. L. Dong;C. J. Choi;B. K. Kim ] / J. Appl. Phys. DOI ScienceOn

KSCI

Synthesis of Nano-sized Tungsten Carbide Powders by Vapor Phase Reaction of Tungsten Ethoxide 텅스텐 에톡사이드의 기상 반응을 이용한 초미립 WC 분말의 합성

Synthesis of Nano-sized Tungsten Carbide Powders by Vapor Phase Reaction of Tungsten Ethoxide