UHTC-carbon fibre composites: Preparation, oxyacetylene torch testing and characterisation

A. Paul; S. Venugopal; Jonathan Binner; B. Vaidhyanathan; A. C J Heaton; P. M. Brown

doi:10.1016/j.jeurceramsoc.2012.08.018

UHTC-carbon fibre composites: Preparation, oxyacetylene torch testing and characterisation

A. Paul^*, S. Venugopal, Jonathan Binner, B. Vaidhyanathan, A. C J Heaton, P. M. Brown

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

156 Citations (Scopus)

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Abstract

Current generation carbon-carbon (C-C) and carbon-silicon carbide (C-SiC) materials are limited to service temperatures below 1800°C and materials are sought that can withstand higher temperatures and ablative conditions for aerospace applications. One potential materials solution is carbon fibre-based composites with matrices composed of one or more ultra-high temperature ceramics (UHTCs); the latter are intended to protect the carbon fibres at high temperatures whilst the former provides increased toughness and thermal shock resistance to the system as a whole. Carbon fibre-UHTC powder composites have been prepared via a slurry impregnation and pyrolysis route. Five different UHTC compositions have been used for impregnation, viz. ZrB ₂, ZrB ₂-20vol% SiC, ZrB ₂-20vol% SiC-10vol% LaB ₆, HfB ₂ and HfC. Their high-temperature oxidation resistance has been studied using a purpose built oxyacetylene torch test facility at temperatures above 2500°C and the results are compared with that of a C-C benchmark composite.

Original language	English
Pages (from-to)	423-432
Number of pages	10
Journal	Journal of the European Ceramic Society
Volume	33
Issue number	2
Early online date	13 Sept 2012
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2012.08.018
Publication status	Published - Feb 2013

Keywords

Oxidation
Oxyacetylene torch testing
Ultra-high temperature

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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UHTC - Cf compositesAccepted author manuscript, 1.09 MBLicence: Unspecified

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title = "UHTC-carbon fibre composites: Preparation, oxyacetylene torch testing and characterisation",

abstract = "Current generation carbon-carbon (C-C) and carbon-silicon carbide (C-SiC) materials are limited to service temperatures below 1800°C and materials are sought that can withstand higher temperatures and ablative conditions for aerospace applications. One potential materials solution is carbon fibre-based composites with matrices composed of one or more ultra-high temperature ceramics (UHTCs); the latter are intended to protect the carbon fibres at high temperatures whilst the former provides increased toughness and thermal shock resistance to the system as a whole. Carbon fibre-UHTC powder composites have been prepared via a slurry impregnation and pyrolysis route. Five different UHTC compositions have been used for impregnation, viz. ZrB 2, ZrB 2-20vol% SiC, ZrB 2-20vol% SiC-10vol% LaB 6, HfB 2 and HfC. Their high-temperature oxidation resistance has been studied using a purpose built oxyacetylene torch test facility at temperatures above 2500°C and the results are compared with that of a C-C benchmark composite.",

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AU - Venugopal, S.

AU - Binner, Jonathan

AU - Vaidhyanathan, B.

AU - Heaton, A. C J

AU - Brown, P. M.

PY - 2013/2

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N2 - Current generation carbon-carbon (C-C) and carbon-silicon carbide (C-SiC) materials are limited to service temperatures below 1800°C and materials are sought that can withstand higher temperatures and ablative conditions for aerospace applications. One potential materials solution is carbon fibre-based composites with matrices composed of one or more ultra-high temperature ceramics (UHTCs); the latter are intended to protect the carbon fibres at high temperatures whilst the former provides increased toughness and thermal shock resistance to the system as a whole. Carbon fibre-UHTC powder composites have been prepared via a slurry impregnation and pyrolysis route. Five different UHTC compositions have been used for impregnation, viz. ZrB 2, ZrB 2-20vol% SiC, ZrB 2-20vol% SiC-10vol% LaB 6, HfB 2 and HfC. Their high-temperature oxidation resistance has been studied using a purpose built oxyacetylene torch test facility at temperatures above 2500°C and the results are compared with that of a C-C benchmark composite.

AB - Current generation carbon-carbon (C-C) and carbon-silicon carbide (C-SiC) materials are limited to service temperatures below 1800°C and materials are sought that can withstand higher temperatures and ablative conditions for aerospace applications. One potential materials solution is carbon fibre-based composites with matrices composed of one or more ultra-high temperature ceramics (UHTCs); the latter are intended to protect the carbon fibres at high temperatures whilst the former provides increased toughness and thermal shock resistance to the system as a whole. Carbon fibre-UHTC powder composites have been prepared via a slurry impregnation and pyrolysis route. Five different UHTC compositions have been used for impregnation, viz. ZrB 2, ZrB 2-20vol% SiC, ZrB 2-20vol% SiC-10vol% LaB 6, HfB 2 and HfC. Their high-temperature oxidation resistance has been studied using a purpose built oxyacetylene torch test facility at temperatures above 2500°C and the results are compared with that of a C-C benchmark composite.

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UHTC-carbon fibre composites: Preparation, oxyacetylene torch testing and characterisation

Abstract

Keywords

ASJC Scopus subject areas

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