Effects of oxygen nonstoichiometry on the high-temperature performance of an yttria-tetragonal zirconia polycrystal material

Journal Article · Sun May 01 04:00:00 EDT 1988 · Advanced Ceramic Materials; (USA)

DOI:https://doi.org/10.1111/j.1551-2916.1988.tb00218.x· OSTI ID:5996265

Swab, J J; Katz, R N; Starita, C J ^[1]

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1. Army Materials Technology Lab., Watertown, MA (USA)

The hot isostatic pressing of an yttria-tetragonal zirconia polycrystal (Y-TZP) powder yields a body that is slightly reduced. Stepped-temperature stress-rupture tests revealed that a hot isostatically pressed Y-TZP has anomalous time-dependent failure behavior through the temperature range 800{degree} to 1,200{degree}C. However, this anomaly can effectively be eliminated, and the stress-rupture performance significantly improved, by oxidizing the pressed body at 1,000{degree}C before use.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5996265
• Journal Information: Advanced Ceramic Materials; (USA), Journal Name: Advanced Ceramic Materials; (USA) Journal Issue: 3 Vol. 3:3; ISSN 0883-5551; ISSN ACEME
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
CHALCOGENIDES
CHEMICAL ANALYSIS
DATA
EXPERIMENTAL DATA
FABRICATION
FRACTURE PROPERTIES
GRAVIMETRIC ANALYSIS
HOT PRESSING
INFORMATION
MATERIALS WORKING
MECHANICAL PROPERTIES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
POWDERS
PRESSING
QUANTITATIVE CHEMICAL ANALYSIS
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
TRANSITION ELEMENT COMPOUNDS
VERY HIGH TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES