Dependence of ceramic fracture properties on porosity

Autor: Arun S. Wagh, J. P. Singh, R. B. Poeppel
Rok vydání: 1993
Předmět:
Zdroj: Journal of Materials Science. 28:3589-3593
ISSN: 1573-4803
0022-2461
DOI: 10.1007/bf01159841
Popis: A connected-grain model developed earlier to study the modulus of elasticity as a power-law of density was extended to study the dependence of the flexural strength of polycrystalline ceramics on porosity. Relations were derived for specific surface fracture energy, fracture toughness and flexural strength as power laws of (1 −p), wherep is porosity. Model validity was confirmed with data on α-alumina, UO2, Si3N4, and the YBa2Cu3O7−δ superconductor.
Databáze: OpenAIRE