Hot isostatic pressing of a presintered yttria-stabilized zirconia ceramic

Journal Article · Fri Sep 01 04:00:00 EDT 1989 · Journal of the American Ceramic Society; (USA)

DOI:https://doi.org/10.1111/j.1151-2916.1989.tb06287.x· OSTI ID:7155675

Druschitz, A P ^[1]; Schroth, J G ^[2]

---

1. Toyo Soda Manufacturing Co., Ltd., Tokyo (JP)
2. General Motors Research Labs., Warren, MI (USA)

The effect of hot isostatic pressing on the bend strength of ZrO{sub 2}-3 mol% Y{sub 2}O{sub 3} was critically dependent on the presintering process. Optimally sintered bodies contained no open porosity and exhibited large increases in strength following hot isostatic pressing. When open porosity of as little as 0.3% persisted after sintering, hot isostatic pressing increased the bulk density, but little or no increase in strength was realized. Two-parameter Weibull analysis of the strength data was used to quantify the strength improvement obtained following hot isostatic pressing. Typical fracture-initiating flaws were identified through optical and electron microscopy.

• OSTI ID: 7155675
• Journal Information: Journal of the American Ceramic Society; (USA), Journal Name: Journal of the American Ceramic Society; (USA) Vol. 72:9; ISSN 0002-7820; ISSN JACTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
CHALCOGENIDES
ELECTRON MICROSCOPY
FABRICATION
HOT PRESSING
IMPACT STRENGTH
MATERIALS WORKING
MECHANICAL PROPERTIES
MICROSCOPY
OPTICAL MICROSCOPY
OXIDES
OXYGEN COMPOUNDS
PRESSING
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES