Transformation Toughening by Dispersed ZrO<SUB>2</SUB> in SiC<I><SUB>W</SUB></I>/ZrO<SUB>2</SUB>/Al<SUB>2</SUB>O<SUB>3</SUB> Composite
نویسندگان
چکیده
منابع مشابه
Transformation Plasticity and Toughening
Analysis of the dynamic evolution of multilevel structure during martensitic transformations provides kinetics-based constitutive relations for transformation plasticity. Application in numerical modeling of ductile fracture by microvoid-softening-induced shear localization, in conjunction with metallographic study of crack-tip processes, identifies transformation toughening mechanisms operatin...
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Assuming that the energy dissipation decreases inversely with distance from the crack tip, the increase in steady-state toughness of a transformation-toughened ceramic is estimated to be AJ = (AJ,/w) In (1 + w), where (i) AJo denotes the toughness increment which would be expected for a given zone height h , assuming full transformation throughout the zone, and (ii) w is a nondimensional parame...
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Due to a larger specific volume of the ferroelectric phase, the antiferroelectric-ferroelectric transition is believed to have an enhanced toughening effect against fracture. The toughening requires a non-recoverable transformation in the crack process zone. Complementary measurement of the crystal symmetry, dielectric constant, field-induced polarization, and Raman spectrum on ceramic Pb0.99Nb...
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Characterized by their low modulus and high stretchability, soft composites have recently attracted great interest from researchers in related areas. The main objective of the present study is on the fracture property and toughening mechanism of soft composites. Two types of soft composites will be studied: soft elastic foam and the double-network (DN) composite. A theoretical/numerical study i...
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ژورنال
عنوان ژورنال: Journal of the Japan Institute of Metals and Materials
سال: 1992
ISSN: 0021-4876,1880-6880
DOI: 10.2320/jinstmet1952.56.11_1280