Title: Mechanical properties and microstructure of (Ce0₂)-stabilised ZrO₂/Al₂O₃ composites

Authors: S. Maschio, O. Sbaizero, S. Meriani

Addresses: Istituto di Chimica Applicata e Industriale, Universita di Trieste, Italy. ' Istituto di Chimica Applicata e Industriale, Universita di Trieste, Italy. ' Istituto di Chimica Applicata e Industriale, Universita di Trieste, Italy

Abstract: In this investigation a series of Al₂O₃-ZrO₂, composites materials were prepared using unstabilised ZrO₂ or different amount of either Y₂O₃ or CeO₂ for stabilising the ZrO₂ in its metastable tetragonal form. The mechanical properties (hardness, bend strength and toughness) were measured and the influence of the different micro structure obtained as well as the role of phase transformation and micro cracks has been assessed.

Keywords: alumina ceramics; mechanical properties; sintering, transformation toughening; zirconia; composites; hardness; bend strength; toughness; microstructure phase transformation; micro cracks.

DOI: 10.1504/IJMPT.1995.036467

International Journal of Materials and Product Technology, 1995 Vol.10 No.3/4/5/6, pp.419 - 427

Published online: 03 Nov 2010 *

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