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Article Dans Une Revue Journal of the European Ceramic Society Année : 2004

Mechanical and microstructural characterisation of Nextel 650 alumina-zirconia fibres

Angeline Poulon-Quintin
Marie-Hélène Berger
Anthony R. Bunsell

Résumé

A two-phase alumina–zirconia fibre, the Nextel 650 fibre (3M), has been studied in tension and creep up to 1300 °C. Microstructural investigations on as-received and tested fibres have been conducted in parallel. Compared to current commercially available fine oxide fibres (alumina and alumina–zirconia based), the fibre shows good creep resistance despite a smaller alumina grain size. High temperature deformation of the fibre is achieved by grain-boundary sliding and is accompanied by oriented alumina grain growth. Sensitivity to alkaline contamination is shown by fast α-alumina grain growth at the fibre surface.

Dates et versions

hal-00172948 , version 1 (18-09-2007)

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Angeline Poulon-Quintin, Marie-Hélène Berger, Anthony R. Bunsell. Mechanical and microstructural characterisation of Nextel 650 alumina-zirconia fibres. Journal of the European Ceramic Society, 2004, 24, pp.2769-2783. ⟨10.1016/j.jeurceramsoc.2003.08.011⟩. ⟨hal-00172948⟩
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