Fractographic failure analysis of brittle materials
by Jan Dusza
International Journal of Materials and Product Technology (IJMPT), Vol. 15, No. 3/4/5, 2000

Abstract: The fracture characteristics of two groups of brittle materials (structural ceramics and silicide based materials) produced by PM technology and developed for high-temperature applications are reviewed from the viewpoint of fractography. The main observation techniques and fracture-mechanical relations are summarised. The relationship between strength, fracture origins, defects and the relationship between fracture toughness and fracture micromechanisms and microstructure are described. The fractographic appearance of the high-temperature crack growth and creep failure is characterised. The possibilities for improving the fracture toughness and high-temperature properties are discussed.

Online publication date: Thu, 03-Jul-2003

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