Vacuum Carburization of Nanometer Tungsten Powder with Carbon Black

Abstract:

Article Preview

Vacuum carburization of nanometer tungsten powder was investigated in a simple designed apparatus. An X-Y recorder was used to plot differential thermal analysis (DTA) curves to determine the starting temperature of carburization of four samples with different specific surface area. The product was characterized by X-ray Diffraction (XRD) and small angle X-ray scattering (SAXS). The results show that finer tungsten powder has lower starting temperature of carburization. Tungsten powder, the BET surface area of which is 32.97m2/g, was completely carburized to tungsten carbide at 1050°C, even though the starting temperature was 890°C. The particle was found to grow sharply before carburization.

Info:

Periodical:

Materials Science Forum (Volumes 534-536)

Edited by:

Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim

Pages:

165-168

DOI:

10.4028/www.scientific.net/MSF.534-536.165

Citation:

L. Ji et al., "Vacuum Carburization of Nanometer Tungsten Powder with Carbon Black", Materials Science Forum, Vols. 534-536, pp. 165-168, 2007

Online since:

January 2007

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.