ePrints

Synergistic roles of carbon fibres and ZrO2 particles in strengthening and toughening Li-alpha-sialon composites

Lookup NU author(s): Emeritus Professor Derek Thompson

Downloads

Full text for this publication is not currently held within this repository. Alternative links are provided below where available.

Abstract

Carbon fibre reinforced Li-a-sialon ceramic matrix composites have been fabricated by a process of slurry infiltration followed by hot-pressing. The roles of both carbon fibres and ZrO2 particles in the strengthening and toughening of Li-oc-sialon ceramic matrix composites are discussed. SEM observations show that microcracks in the matrix resulting from the thermal mismatch between the carbon fibres and the matrix can be eliminated by the addition of the ZrO2 and a considerable amount of fibre pullout was achieved during fracture failure of the composites. Measurement of mechanical properties indicates that a synergistic strengthening and toughening has been achieved with bending strength and fracture toughness of similar to 410 MPa and similar to 12 Mpa m(1/2) respectively. (C) 2001 Elsevier Science Ltd. All rights reserved.

Publication metadata

Author(s): Thompson DP; Yu ZB; Bhatti AR

Publication type: Article

Publication status: Published

Journal: Journal of the European Ceramic Society

Year: 2002

Volume: 22

Issue: 2

Pages: 225-235

ISSN (print): 0955-2219

ISSN (electronic): 1873-619X

Publisher: Elsevier Ltd

URL: http://dx.doi.org/10.1016/S0955-2219(01)00262-X

DOI: 10.1016/S0955-2219(01)00262-X

Altmetrics

Share