Evaluated material properties for a sintered {alpha}-alumina
- National Inst. of Standards and Technology, Gaithersburg, MD (United States). Ceramics Div.
Results of a data evaluation exercise are presented for a particular specification of sintered {alpha}-alumina (mass fraction of Al{sub 2}O{sub 3}, {ge}0.995; relative density ({rho}/{rho}{sub theoretical}), {ge} 0.98; and nominal grain size, 5 {micro}m). A comprehensive set of material property data is established based on published physical, mechanical, and thermal properties of alumina specimens that conform to the constraints of the material specification. The criteria imposed on the properties are that the values should be derived from independent experimental studies, that the values for physically related properties should be mutually self-consistent, and that the sets of values should be compatible with established material property relations. The properties assessed in this manner include crystallography, thermal expansion, density, sound velocity, elastic modulus, shear modulus, Poisson`s ratio, bulk modulus, compressive strength, flexural strength, Weibull characteristic strength, Weibull modulus, tensile strength, hardness, fracture toughness, creep rate, creep rate stress exponent, creep activation energy, friction coefficient, wear coefficient, melting point, specific heat, thermal conductivity, and thermal diffusivity.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 532929
- Journal Information:
- Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 8 Vol. 80; ISSN 0002-7820; ISSN JACTAW
- Country of Publication:
- United States
- Language:
- English
Similar Records
Strength and Young`s modulus behavior of a partially sintered porous alumina
Mechanical properties of partially dense alumina produced from powder compacts