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Application of fractal geometry measurements to the evaluation of fracture toughness of brittle intermetallics

Published online by Cambridge University Press:  31 January 2011

Y. Fahmy ,
J.C. Russ  and
C.C. Koch
Y. Fahmy
Affiliation:
Materials Science and Engineering Department, North Carolina State University, Raleigh, North Carolina 27695
J.C. Russ
Affiliation:
Materials Science and Engineering Department, North Carolina State University, Raleigh, North Carolina 27695
C.C. Koch
Affiliation:
Materials Science and Engineering Department, North Carolina State University, Raleigh, North Carolina 27695
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Abstract

Determination of the boundary fractal dimension of planar sections through particles produced by fracturing a series of brittle intermetallic V3Au materials with increasing oxygen content provides a single parameter that describes the surface roughness. This is observed to correlate with the measured fracture toughness, K1c, as determined with an indentation cracking test. The correlation agrees quantitatively with results obtained on several brittle ceramics by other workers.

Type
Articles
Information
Journal of Materials Research , Volume 6 , Issue 9 , September 1991 , pp. 1856 - 1861
Copyright
Copyright © Materials Research Society 1991

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References

1.von Philipsborn, H. and Laves, F., Acta Cryst. 17, 213–214 (1964).Google Scholar
2.Kassem, M. A., Fahmy, Y., and Koch, C. C., in Alloy Phase Stability and Design, edited by Stocks, G. M., Pope, D. P., and Giamei, A. F. (Mater. Res. Soc. Symp. Proc. 186, Pittsburgh, PA, 1990).Google Scholar
3.Mandelbrot, B. B., The Fractal Geometry of Nature (W. H. Freeman, San Francisco, CA, 1982).Google Scholar
4.Mandelbrot, B. B., Passoja, D. E., and Pauley, A. J., Nature 308, 721 (1984).Google Scholar
5.Marion, R. H., Fracture Mechanics Applied to Brittle Materials (ASTM Special Technical Publication 678, Philadelphia, PA, 1978), p. 103.Google Scholar
6.Russ, J. C., Computer Assisted Microscopy (Plenum Press, New York, 1990).CrossRefGoogle Scholar
7.Mecholsky, J. J., Passoja, D. E., and Feinberg-Ringel, K. S., J. Am. Ceram. Soc. 72 (1), 60 (1989).CrossRefGoogle Scholar