The effect of a weak W/SiC interface on the strength of Sigma silicon carbide monofilament

Journal of Microscopy

Volumn 196, Issue 2, 1999, Pages 175-184

  Dyos, K ^a   Shatwell, R A ^a  

^a DEFENCE SCIENCE AND TECHNOLOGY LABORATORY   (United Kingdom)

Author keywords

Fibre; Monofilament; Silicon carbide; Strength

Indexed keywords

BOUNDARY LAYERS; BRITTLE FRACTURE; DUCTILE FRACTURE; FRACTURE MECHANICS; TUNGSTEN COMPOUNDS;

BRITTLE FAILURES; CARBON BASED COATINGS; FRACTURE BEHAVIOR; MONOFILAMENT; STRENGTH;

SILICON CARBIDE;

SILICON DERIVATIVE; TUNGSTEN;

ARTICLE; FIBER; MODEL; PRIORITY JOURNAL; STRENGTH; SURFACE PROPERTY; ULTRASTRUCTURE;

EID: 0032707312     PISSN: 00222720     EISSN: None     Source Type: Journal    
DOI: 10.1046/j.1365-2818.1999.00621.x     Document Type: Article

References (11)

1. Cheng, T.T., Jones, I.P., Shatwell, R.A. & Doorbar, P. (1999) The microstructure of Sigma 1140+ SiC fibres. Mater. Sci. Eng. A260, 139-145.
2. Crane, R.L. & Krukonis, V.J. (1975) Strength and fracture properties of silicon carbide filament. Ceram. Bull. 54, 184-188.
3. Curtin, W.A. (1991) A model for the strength of Sigma fibres. BP America internal report BP/A-262, available on request from R. A. Shatwell.
4. Faucon, A. (1999) Influence of an interface on the mechanical behaviour of a monofilament. PhD Thesis, University of Bordeaux.
5. Lawn, B.R. & Wilshaw, T.R. (1975) Fracture of Brittle Solids. Cambridge University Press, Cambridge.
6. LePetitcorps, Y. & Shatwell, R.A. (1996) Process for depositing a protective coating of TiC between W and SiC on a monofilament. US Patent 5 571 561 (November 5, 1996).
7. Shatwell, R.A. (1993) The effect of thermal exposure on Sigma monofilament - a compilation of various relevant internal BP research reports available from the author on request.
8. Shatwell, R.A. (1994) Adhesion of SM1140+ coatings to silicon carbide substrate in Sigma monofilament Mater. Sci. Technol. 10, 552-557.
9. Thomas, M.P. & Winstone, M.R. (1997) Effect of matrix alloy on longitudinal tensile behaviour of fibre reinforced titanium matrix composites. Scripta Mater. 37 (12), 1855-1862.
10. Vega-Boggio, J. & Vingsbo, O. (1976) Application of the Griffith criterion to fracture of boron fibres. J. Mater. Sci. 11, 2242-2246.
11. Vega-Boggio, J. & Vingsbo, O. (1977) Surface energy measurements from Griffith cracks in boron fibres. J. Mater. Sci. 12, 1692-1693.