Analysis of hot isostatic pressing of presintered zirconia

Journal Article · Sun Apr 01 00:00:00 EST 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), Vol. 73:4; ISSN 0002-7812
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ZIRCONIUM OXIDES
HOT PRESSING
CHEMICAL ANALYSIS
GRAIN SIZE
POROSITY
TEMPERATURE EFFECTS
VERY HIGH TEMPERATURE
CHALCOGENIDES
CRYSTAL STRUCTURE
FABRICATION
MATERIALS WORKING
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
PRESSING
SIZE
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
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