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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

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