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Synthesising of a model composite in the oxide/oxide system: alumina fibre reinforced alumina matrix
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
Luleå tekniska universitet.
1999 (English)In: Advanced structural fiber composites, TECHNA Srl , 1999Conference paper (Refereed)
Abstract [en]

Ceramic matrix composites have attracted big interest as potential material for high temperature applications. To avoid one of the main problems, namely oxidation at higher temperatures, interest has increased for systems where both reinforcement and matrix material are ceramic oxides. This work presents a possible method of producing long fibre reinforced ceramic matrix composites. The method was applied to single crystal aluminium oxide fibres in a polycrystalline alumina matrix and involves cladding individual fibres with the matrix material in the form of pre-sintered tubes with appropriately small diameter. The composite is then hot isostatically pressed (HIP), by putting several fibre-tube pairs in a container of required diameter. A HIP cycle was found that led to full densification of the composite without visual damage to the fibres. The method produces composites with an ideal uniform fibre spacing; samples of cylindrical shape suitable, for example, for uniaxial testing can be produced

Place, publisher, year, edition, pages
TECHNA Srl , 1999.
Series
, Advances in science and technology, 22
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-35511Local ID: a0fb6160-fd58-11db-b816-000ea68e967bISBN: 88-86538-23-5OAI: oai:DiVA.org:ltu-35511DiVA: diva2:1008764
Conference
Advanced structural fiber composites (Topical symposium 5) : 14/06/1998 - 19/06/1998
Note
Godkänd; 1999; Bibliografisk uppgift: CIMTEC. World Ceramics Congress and Forum on New Materials (9th); 20070508 (cira)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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