Author: Steen, M.

Source: International Materials Reviews, Volume 44, Number 5, May 1999 , pp. 165-216(52)

Publisher: Maney Publishing

Abstract:

Fracture characteristics and mechanical properties of advanced structural ceramics produced by advanced technology and developed for high temperature applications are reviewed from the viewpoint of fractography. The main processing routes for preparation of in situ reinforced ceramic matrix composites, nanocomposites, and laminar/layered composites are summarised and their principal microstructure parameters are described. The main observation techniques, levels/steps of observation, and principal fracture mechanics relations are summarised. The relationships between rupture strength, Weibull modulus, and defect distribution, and the possibilities for strength improvement through improved processing, are discussed. Recent results relating to strength and reliability prediction are given. The fractographic appearances of process and bridging zone toughening mechanisms are described and the relationship between fracture toughness, microstructure, and fracture micromechanisms is discussed. Interfaces (macro- and microscale) and residual stresses and their effect on toughness, strength, and reliability of nano- and layered composites are analysed. The influence of loading mode on fracture and mechanisms leading to fatigue degradation in these materials is summarised. Fracture surface characteristics of high temperature crack growth and creep failure are described and the effects of oxidation and corrosive degradation on fracture and strength of these materials are considered. The role of fractography in the development of advanced ceramics and in efforts to improve reliability is described.

Document Type: Regular Paper

DOI: http://dx.doi.org/10.1179/095066099101528270

Affiliations: The Institute for Advanced Materials, Joint Research Centre, European Commission, PO Box 2, Petten, NL–1755, The Netherlands

Publication date: 1999-05-01

More about this publication?

• The archive of International Materials Reviews has three previous titles. The full archive is available online, and each title has a separate page of volumes. Please see Metallurgical Reviews , for volumes 1-16, International Metallurgical Reviews for volumes 17-20 and International Metals Reviews for volumes 21-31

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