Hostname: page-component-8448b6f56d-wq2xx Total loading time: 0 Render date: 2024-04-16T23:19:14.791Z Has data issue: false hasContentIssue false
  • English
  • Français

Instrumented-Indentation for Mechanical Characterization of Boron Carbide Nano-Composite Coatings

Published online by Cambridge University Press:  17 March 2011

Mark Walter ,
Srikant Nekkanty ,
Elizabeth Cooke  and
Gary Doll
Mark Walter
Affiliation:
The Ohio State University, Department of Mechanical Engineering, Columbus, OH 43212;
Srikant Nekkanty
Affiliation:
The Ohio State University, Department of Mechanical Engineering, Columbus, OH 43212;
Elizabeth Cooke
Affiliation:
The Timken Company, Canton, Ohio 44706.
Gary Doll
Affiliation:
The Timken Company, Canton, Ohio 44706.
Get access

Abstract

Boron carbide (BC) is well known as a coating material that is important for a wide range of technological applications. The applicability of boron carbide stems from the fact that it is a very hard material with high lubricity, high elastic modulus, low specific gravity, and good chemical stability. Disadvantages, however, include extreme brittleness and sometimes poor adhesion. Recently, a reactive sputtering involving boron carbide targets and hydrocarbon gases has been used to produce novel nano-composite boron carbide thin films comprised of BC nano-crystals embedded in a matrix of hydrogenated amorphous carbon (DLC). The microstructure of these thin films is similar to that of other metal carbide/DLC nano-composite films. The present paper discusses the results of Vickers indentation experiments carried out on four different samples of boron carbide/DLC coatings that were sputtered deposited onto 52100 steel disks. The four different samples resulted from four different levels of hydrocarbon gas flow during processing. Acoustic emission data was recorded simultaneously with the indentation experiments. The indentations and the associated crack patterns were observed using scanning electron microscopy.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 697: Symposium P – Surface Engineering 2001--Fundamentals and Applications , January 2001 , P2.8
Copyright
Copyright © Materials Research Society 2002

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

1. Cao, D.M., Feng, B., Meng, W.J., Rehn, L.E., Baldo, P.M., and Khonsari, M.M., Appl. Phys. Let., 79, 329–331 (2001).Google Scholar
2. Shirai, K., Emura, S., Gonda, S. and Kumashiro, Y., J. Appl. Phys., 78, 92–3400 (1995).Google Scholar
3. Onate, J.I., Garcia, A., V.Bellido and Viviente, J.L., Surf. Coat. Tech., 49, 8–553 (1991).Google Scholar
4. Hu, T., Stiehl, L., Rafaniello, W., Fawcett, T., Hawn, D.D., Mashall, J.G., Rozeveld, S.J., Putzig, C.L., Blackson, J.H., Cermignani, W. and Robinson, M.G., Thin Sol. Films, 332, 80–86 (1998).Google Scholar
5. Knotek, O., Lugscheider, E. and Siry, C.W, Surf. Coat. Tech., 91, 167–173 (1997).Google Scholar
6. Tsou, H.T. and Kowbel, W., Surf. Coat. Tech., 79, 139–150 (1996).Google Scholar
7. Voevodin, A.A. and Zabinski, J.S.. J. of Mat. Sci., 33 319 (1998).Google Scholar
8. Voevodin, A.A., O'Neill, J.P., Prasad, S.V., and Zabinski, J.S., J. Vac. Sci. Tech, A17, 1986 (1999).Google Scholar
9. Voevodin, A. A., O'Neill, J. P. and Zabinski, J. S., Thin Sol. Films, 342, 194 (1999).Google Scholar
10. Eckardt, T., Bewilogua, K., Kolk, G. van der, Hurkmans, T., Trinh, T., and Fleischer, W., Surf. Coat. Tech, 126, 69–75 (2000).Google Scholar