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Mechanical Properties of Diamond Fibres

Published online by Cambridge University Press:  15 February 2011

N. M. Everitt ,
R. A. Shatwell ,
E. Kalaugher  and
E. Nicholson
N. M. Everitt
Affiliation:
Department of Aerospace Engineering, University of Bristol, Queens Building, Vniversity Walk, Bristol, BS8 1TR, UK
R. A. Shatwell
Affiliation:
IPRA Sigma, Sunbury-on-Thames, Middx TW16 7LN, UK
E. Kalaugher
Affiliation:
Department of Aerospace Engineering, University of Bristol, Queens Building, Vniversity Walk, Bristol, BS8 1TR, UK
E. Nicholson
Affiliation:
Department of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 ITS, UK
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Abstract

Tungsten and silicon carbide fibres have been coated with diamond using the HFCVD technique. The diamond volume fraction varied between 26% and 73%. Resonance in bending tests gave a Young's modulus of 880 GPa for the diamond coating. Tensile testing indicated that the diamond fracture strength was between 600 MPa and 2000 MPa, depending on the coating thickness, and thus the grain size, of the diamond. The strain to failure of the diamond coating in bending was approximately 0.15% for 25 μm thick films.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 383: Symposium I – Mechanical Behavior of Diamond and Other Forms of Carbon , 1995 , 379
Copyright
Copyright © Materials Research Society 1995

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References

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