Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-26T15:49:48.156Z Has data issue: false hasContentIssue false
  • English
  • Français

Preparation and characterization of a novel solid solution of aluminum in tungsten carbide by mechanically activated high-temperature reaction

Published online by Cambridge University Press:  01 July 2006

Junmin Yan ,
Xianfeng Ma ,
Wei Zhao ,
Huaguo Tang ,
Changjun Zhu  and
Shuguang Cai
Junmin Yan
Affiliation:
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of Chinaand Graduate School of Chinese Academy of Sciences, Changchun 130022, People's Republic of China
Xianfeng Ma*
Affiliation:
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
Wei Zhao
Affiliation:
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
Huaguo Tang
Affiliation:
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of Chinaand Graduate School of Chinese Academy of Sciences, Changchun 130022, People's Republic of China
Changjun Zhu
Affiliation:
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of Chinaand Graduate School of Chinese Academy of Sciences, Changchun 130022, People's Republic of China
Shuguang Cai
Affiliation:
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of Chinaand Graduate School of Chinese Academy of Sciences, Changchun 130022, People's Republic of China
*
a) Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

In this work, a novel substitutional solid solution (W0.8Al0.2)C was synthesized by mechanically activated high-temperature reaction. X-ray diffraction was used for phase identification during the whole reaction process. Environment scanning electronic microscopy–field emission gun and energy dispersive x-ray were used to investigate the microstructure and the quantitative material composition of the specimen. (W0.8Al0.2)C was found to crystallize in the WC-type, and the cell parameters were a = 2.907(1) Å and c = 2.837(1) Å. The hardness of (W0.8Al0.2)C was tested to be 19.3 ± 1 GPa, and the density was 13.19 ± 0.05 g cm−3.

Keywords

Crystallographic structureHardnessSintering
Type
Articles
Information
Journal of Materials Research , Volume 21 , Issue 7 , July 2006 , pp. 1700 - 1703
Copyright
Copyright © Materials Research Society 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Goren-Muginstein, G.R., Berger, S., Rosen, A.: Sintering study of nano-crystalline tungsten carbide powders. Nanostruct. Mater. 10, 795 (1998).CrossRefGoogle Scholar
2.Scussel, H.J.: Friction and wear of cemented carbides, in ASM Handbook Vol. 18 Ed. Blau, P. (ASM International, Materials Park, OH, 1992), p. 795.Google Scholar
3.Tang, H.G., Ma, X.F., Zhao, W., Yan, X.W., Hong, R.J.: Preparation of W–Al alloys by mechanical alloying. J. Alloy Compds. 347, 228 (2002).CrossRefGoogle Scholar
4.Andrews, M.R.: Production and characteristics of the carbides of tungsten. J. Phys. Chem. 27, 270 (1923).CrossRefGoogle Scholar
5.Gente, C., Oehring, M., Bormann, R.: Formation of thermodynamically unstable solid solutions in the Cu–Co system by mechanical alloying. Phys. Rev. B 48, 13244 (1993).CrossRefGoogle ScholarPubMed
6.Veltl, G., Scholz, B., Kunze, H-D.: Amorphization of Cu–Ta alloys by mechanical alloying. Mater. Sci. Eng. A 134, 1410 (1991).CrossRefGoogle Scholar
7.Fecht, H.J., Hellstern, E., Fu, Z., Johnson, W.L.: Nanocrystalline metals prepared by high-energy ball milling. Metall Trans. A 21, 2333 (1990).CrossRefGoogle Scholar
8.Pitschke, W., Hermann, H., Mattern, N.: The influence of surface roughness on diffracted x-ray intensities in Bragg–Brentano geometry and its effect on the structure determination by means of Rietveld analysis. Powder Diff. 8, 74 (1993).CrossRefGoogle Scholar
9.Hightower, A., Fultz, B., Bowman, R.C. Jr.: Mechanical alloying of Fe and Mg. J. Alloy Compds. 252, 238 (1997).CrossRefGoogle Scholar
10.Hojo, J., Ryoichioono, R., Kato, A.: The sinterability of ultrafine WC powders obtained by a CVD method. J. Mater. Sci. 15, 2335 (1980).CrossRefGoogle Scholar
11.Bagchi, T.P., Sen, P.K.: Kinetics of densification of powder compacts during the initial stage of sintering with constant rates of heating. A thermal analysis approach. Part I. Theoretical considerations. Thermochim. Acta 56, 261 (1982).CrossRefGoogle Scholar
12.Andrievski, R.A.: Superhard materials based on nanostructured high-melting point compounds: Achievements and perspectives. Int. J. Refract. Met. Hard Mater. 19, 447 (2001).CrossRefGoogle Scholar