Glass properties in the yttria-alumina-silica system

Journal Article · Thu Oct 01 04:00:00 EDT 1987 · J. Am. Ceram. Soc.; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1987.tb04901.x· OSTI ID:5132396

Hyatt, M J; Day, D E

The glass formation region in the yttria-alumina-silica system was investigated. Properties of glasses containing 25 to 55 wt% yttria were measured and the effect of the composition was determined. The density, refractive index, thermal-expansion coefficient, and microhardness increased with increasing yttria content. The dissolution rate in 1N HCl increased with increasing yttria content and temperature. These glasses were also found to have high electrical resistivity.

• Research Organization: NASA Lewis Research Center, Cleveland, OH (US)
• OSTI ID: 5132396
• Journal Information: J. Am. Ceram. Soc.; (United States), Journal Name: J. Am. Ceram. Soc.; (United States) Vol. 70:10; ISSN JACTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AUGMENTATION
CHALCOGENIDES
CHEMICAL COMPOSITION
DENSITY
DISSOLUTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPANSION
GLASS
HARDNESS
MECHANICAL PROPERTIES
MICROHARDNESS
MINERALS
OPTICAL PROPERTIES
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
QUANTITY RATIO
REFRACTIVITY
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SYNTHESIS
TEMPERATURE DEPENDENCE
THERMAL EXPANSION
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES