Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-29T07:23:31.961Z Has data issue: false hasContentIssue false

Fracture Behavior of CVD Diamond

Published online by Cambridge University Press:  22 February 2011

M. D. Drory
Affiliation:
Crystallume, 125 Constitution Drive, Menlo Park, CA 94025
J. F. Gardinier
Affiliation:
Crystallume, 125 Constitution Drive, Menlo Park, CA 94025
J. M. Pinneo
Affiliation:
Crystallume, 125 Constitution Drive, Menlo Park, CA 94025
Get access

Abstract

The fracture behavior of CVD diamond is examined by indentation experiments in which slow crack growth has been observed. Diamond films of 400μm thickness were prepared by plasma-enhanced CVD on a silicon substrate, subsequently removed from the substrate, and polished for indentation testing. A microhardness tester was used to produce Vickers indentations under low load. Crack length measurements over time revealed susceptibility to slow crack growth in ambient testing conditions. The stress-corrosion susceptibility coefficient, N, was measured as 9.3.

Type
Research Article
Copyright
Copyright © Materials Research Society 1992

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. O'Hern, M. E., McHargue, C. J., Clausing, R. E., Oliver, W. C., and Parrish, R. H. Mat. Res. Soc. Extended Abstracts, EA-19, 131–37 (1989).Google Scholar
2. Jassorwski, D. M.. Aerojet TechSystems Final Report of Air Force contract #F04611–88-C-0074, August 1989.Google Scholar
3. Drory, M. D., Gardinier, C. F. and Speck, J. S., ]. Amer. Ceram. Soc. In press.Google Scholar
4. Wiederhorn, S. M.. J. Non-Crystalline Solids, 19, 169181 (1975).CrossRefGoogle Scholar
5. Michaleske, T. A., Bunker, B. C., and Freiman, S. W.. J. Am. Ceram. Soc. 69 [10] 721–24 (1986).Google Scholar
6. Ferber, M. K. and Becher, P. F., J. Am. Ceram. Soc. 73 [7] 2038–46 (1990).Google Scholar
7. Evans, A. G. and Charles, E. A., J. Am. Ceram. Soc, 59 [7–8] 371–72 (1976).CrossRefGoogle Scholar
8. Gupta, P. K. and Jubb, N. J.. J. Am. Ceram. Soc, 64 [8] C11214 (1981).CrossRefGoogle Scholar
9. Anstis, G. R., Chantikul, P., Lawn, B. R., and Marshall, D. B., J. Am. Ceram. Soc, 64 [9] 533–38 (1981).Google Scholar
10. Wiederhorn, S. M.. J. Am. Ceram. Soc., 50 [8] 407–14 (1967).Google Scholar