Analysis of hot isostatic pressing of presintered zirconia

Journal Article · Sun Apr 01 04:00:00 EDT 1990 · American Ceramic Society Bulletin; (USA)

OSTI ID:6565269

Kim, J Y; Uchida, N; Saito, K; Uematsu, K ^[1]

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1. Faculty of Engineering, Nagaoka Univ. of Technology, Nagaoka, Niigata 940-21 (JP)

This paper reports hot isostatic pressing (HIP) of presintered Y-TZP studied at 1100{degrees} to 1400{degrees}C, 5 to 200 MPa, for 0.5 to 4 h. The effects of process variables of HIP and the characteristics of the presintered specimens on the densification behavior of HIP were examined. The microstructural development after HIP was also examined. Grain Growth occurred during the densification of HIP. Empirically, a linear relation having a rather constant slope was found between the logarithms of porosities and grain sizes, for each starting condition. Provided this relationship was taken into account, the Ashby's model for HIP could express the densification process for this system satisfactorily.

• OSTI ID: 6565269
• Journal Information: American Ceramic Society Bulletin; (USA), Journal Name: American Ceramic Society Bulletin; (USA) Vol. 73:4; ISSN ACSBA; ISSN 0002-7812
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
CHALCOGENIDES
CHEMICAL ANALYSIS
CRYSTAL STRUCTURE
FABRICATION
GRAIN SIZE
HOT PRESSING
MATERIALS WORKING
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
POROSITY
PRESSING
SIZE
TEMPERATURE EFFECTS
TRANSITION ELEMENT COMPOUNDS
VERY HIGH TEMPERATURE
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES