Influence of processing on the carbon fibre/SiAlON interface

N. Dodds*, H. W. Chandler, D. P. Thompson

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Carbon fibre reinforced SiAlON composites were prepared by slurry infiltration of continuous carbon fibre tows, winding, filter pressing and uniaxial hot pressing. XRD, mechanical testing, and SEM were used to characterize the composites. Results showed that materials prepared by hot pressing were brittle. A phase analysis revealed traces of 2H and 3C silicon carbide, believed to have formed via a gas phase reaction at the fibre matrix interface. To minimize this reaction, a two-fold approach was adopted. First, a low temperature processing route using a low eutectic sintering aid was used to establish the lower bound for silicon carbide. Second, low porosity/high green density composite specimens were prepared by improving the slurry infiltration process and a two-step hot pressing cycle used to maximize densification at a lower temperature.

Original languageEnglish
Title of host publicationKey Engineering Materials
PublisherPubl by Trans Tech Publ
Number of pages1
Volume89-91
ISBN (Print)0878496688
Publication statusPublished - 1 Jan 1994
EventProceedings of the International Conference on Silicon Nitride-Based Ceramics - Stuttgart, Ger
Duration: 4 Oct 19936 Oct 1993

Conference

ConferenceProceedings of the International Conference on Silicon Nitride-Based Ceramics
CityStuttgart, Ger
Period4/10/936/10/93

Fingerprint

Hot pressing
Carbon fibers
Infiltration
Silicon carbide
Composite materials
Processing
Mechanical testing
Densification
Density (specific gravity)
Eutectics
Sintering
Porosity
Gases
Temperature
Scanning electron microscopy
Fibers
carbon fiber
silicon carbide

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Dodds, N., Chandler, H. W., & Thompson, D. P. (1994). Influence of processing on the carbon fibre/SiAlON interface. In Key Engineering Materials (Vol. 89-91). Publ by Trans Tech Publ.

Influence of processing on the carbon fibre/SiAlON interface. / Dodds, N.; Chandler, H. W.; Thompson, D. P.

Key Engineering Materials. Vol. 89-91 Publ by Trans Tech Publ, 1994.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Dodds, N, Chandler, HW & Thompson, DP 1994, Influence of processing on the carbon fibre/SiAlON interface. in Key Engineering Materials. vol. 89-91, Publ by Trans Tech Publ, Proceedings of the International Conference on Silicon Nitride-Based Ceramics, Stuttgart, Ger, 4/10/93.
Dodds N, Chandler HW, Thompson DP. Influence of processing on the carbon fibre/SiAlON interface. In Key Engineering Materials. Vol. 89-91. Publ by Trans Tech Publ. 1994
Dodds, N. ; Chandler, H. W. ; Thompson, D. P. / Influence of processing on the carbon fibre/SiAlON interface. Key Engineering Materials. Vol. 89-91 Publ by Trans Tech Publ, 1994.
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