Hostname: page-component-8448b6f56d-qsmjn Total loading time: 0 Render date: 2024-04-18T02:45:48.917Z Has data issue: false hasContentIssue false
  • English
  • Français

Highly adherent diamond coatings deposited onto WC-Co cemented carbides via barrier interlayers

Published online by Cambridge University Press:  31 January 2011

J. M. Lopez ,
V. G. Babaev ,
V. V. Khvostov  and
J. M. Albella
J. M. Lopez
Affiliation:
Physics Department, Cayetano Heredia University, Av. Honorio Delgado 430, Lima 31, Peru
V. G. Babaev
Affiliation:
Department of Physical Electronics, Lomonosov Moscow State University, Vorobjevy Gory, Moscow, 119899 Russia
V. V. Khvostov
Affiliation:
Department of Physical Electronics, Lomonosov Moscow State University, Vorobjevy Gory, Moscow, 119899 Russia
J. M. Albella
Affiliation:
Instituto Ciencia de Materiales, Cantoblanco, 28049 Madrid, Spain
Get access

Abstract

Diamond coatings have been deposited by plasma enhanced chemical vapor deposition (PCVD) onto WC-Co cemented carbides by use of specially developed barrier interlayers, well compatible with cemented carbides. The barrier interlayer comprises a Ti-based layer adjacent to the substrate, which completely prevents both substrate decarburization and Co diffusion from the substrate, and a diamond-bonding layer needed to obtain high adhesion to the diamond coating. The diamond-bond layer is obtained by seeding the surface with nanograined diamond particles by laser ablation. Diamond deposition under controlled parameters allows one to obtain fine-grained and uniform diamond coatings. The diamond coating obtained in this way has a high adhesion to the cemented carbide substrate due to the enhanced interaction through the nanograined diamond interlayer.

Type
Articles
Information
Journal of Materials Research , Volume 13 , Issue 10 , October 1998 , pp. 2841 - 2846
Copyright
Copyright © Materials Research Society 1998

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.Reineck, I., Sodenberg, S., Ekholm, P. E., and Westergren, K., Surf. Coat. Technol. 57, 47 (1993).Google Scholar
2.Mehlmann, A., Berger, S., Fayer, A., Dirnfeld, S., Bamberger, M., Avigal, Y., Hoffman, A., and Porath, R., Diamond Relat. Mater. 3, 805 (1994).Google Scholar
3.Saito, Y., Isozaki, T., Masuda, A., et al., Diamond Relat. Mater. 2, 1391 (1993).Google Scholar
4.Nesladek, M., Spinnewyn, J., Asinari, C., Lebout, R., and Lorent, R., Diamond Relat. Mater. 3, 98 (1994).CrossRefGoogle Scholar
5.Polo, M. C., Cifre, J., and Estive, J., Diamond Relat. Mater. 3, 492 (1994).CrossRefGoogle Scholar
6.von Munch, W. and Wiebach, S., Diamond Relat. Mater. 3, 500 (1994).Google Scholar
7.Fiestritzer, S., Schintlmeister, W., and Kanz, J., Proc. 13th Int. Plansee Sem., edited by Bildstein, H. and Eck, R. (Metallwerk Plansee, Reutee, 1993), vol. 2, p. 58.Google Scholar
8. British Patent No. 1544436.Google Scholar
9. Japan Patent No. 56–62960.Google Scholar
10. Japan Patent No. 53–45607.Google Scholar
11.Erdemir, A. and Cheng, C., J. Vac. Sci. Technol. A7, 2486 (1989).Google Scholar
12.Konyashin, I., Surf. Coat. Technol. 71, 277 (1995).Google Scholar
13.Gusseva, M., Babaev, V., Khvostov, V., Valiullova, Z., Bregadze, A., Obrastsov, A., and Alexenko, A., Diamond Relat. Mater. 3, 328 (1994).Google Scholar
14.Konyashin, I., Functional Mater. 1, 106 (1994).Google Scholar
15.Konyashin, I. and Gusseva, M., Diamond Relat. Mater. (1997).Google Scholar