Superplastic bulging of fine-grained zirconia

Journal Article · Thu Mar 01 04:00:00 EST 1990 · Journal of the American Ceramic Society; (USA)

DOI:https://doi.org/10.1111/j.1151-2916.1990.tb06585.x· OSTI ID:6887344

Wu, X; Chen, I W ^[1]

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1. Michigan Univ., Ann Arbor, MI (USA). Dept. of Materials Science and Engineering

This paper reports a tetragonal zirconia, containing 2 mol% Y{sub 2}O{sub 3}, with 0.3 mol% CuO addition as a grain-boundary phase, superplastically stretched at 1150{degrees}C using a hemispherical punch. Mechanical analyses were performed to establish that a biaxial tensile stress/strain state was achieved in the process with a maximal strain of 0.5 in the thinned hemispherical shell. The material was damage tolerant up to a critical strain rate, approximately 10{sup {minus} 3} s{sup {minus} 1}.

• OSTI ID: 6887344
• Journal Information: Journal of the American Ceramic Society; (USA), Journal Name: Journal of the American Ceramic Society; (USA) Vol. 73:3; ISSN 0002-7820; ISSN JACTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHALCOGENIDES
CHEMICAL COMPOSITION
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
GRAIN BOUNDARIES
MECHANICAL PROPERTIES
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
POLYCRYSTALS
STABILIZED SUPERCONDUCTORS
SUPERCONDUCTORS
TENSILE PROPERTIES
TETRAGONAL LATTICES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES