Effect of chemically added zirconia and yttria on the mechanical properties of zirconia-dispersed alumina

Journal Article · Mon Jan 31 23:00:00 EST 1994 · American Ceramic Society Bulletin; (United States)

OSTI ID:5091371

Ranjbar, K; Rao, B T; Rama Mohan, T R ^[1]; Harendranath, C S ^[2]

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1. Indian Inst. of Tech., Bombay (India). Dept. of Metallurgical Engineering
2. Indian Inst. of Tech., Bombay (India). Regional Sophisticated Instrumentation Center

Alumina powders dispersed with monoclinic, tetragonal, and cubic zirconia were prepared by evaporating a colloidal dispersion of alumina powders in solutions containing zirconium and yttrium salts. The dried and calcined powders were compacted, sintered, and characterized. The results demonstrated a clear toughening effect by the zirconia on the alumina ceramics. The alumina containing 20-wt%-yttria-stabilized tetragonal zirconia had the maximum toughness.

• OSTI ID: 5091371
• Journal Information: American Ceramic Society Bulletin; (United States), Journal Name: American Ceramic Society Bulletin; (United States) Vol. 73:2; ISSN 0002-7812; ISSN ACSBA7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
DATA
DISPERSIONS
EXPERIMENTAL DATA
FRACTURE PROPERTIES
INFORMATION
MECHANICAL PROPERTIES
METALLURGICAL EFFECTS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES