Joining of ceramics of different biofunction by hot isostatic pressing

Journal Article · Fri Oct 01 00:00:00 EDT 1993 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1993.tb04002.x· OSTI ID:5727798

Li, Jianguo ^[1]; Harmansson, L ^[2]; Soeremark, R ^[3]

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1. Karolinska Inst., Huddinge (Sweden). Center for Dental Technology and Biomaterials
2. Doxa Certex AB, Uppsala (Sweden)
3. Karolinska Inst., Huddinge (Sweden). Dept. of Prosthodontics

Monolithic zirconia (Z) and zirconia-hydroxyapatite (Z/HA) composites were joined by cold isostatic pressing (CIP at 300 MPa) and subsequently by glass-encapsulated hot isostatic pressing (HIP at 1225 C, 1 h and 200 MPa). The physical and mechanical properties of the materials were measured. The fracture surface was studied using a light microscope. The results indicate a strength level of the joint similar to that of the corresponding composite material (Z/HA), 845 and 860 MPa, respectively. Similar experiments with monolithic alumina (A) and alumina-hydroxyapatite (A/HA) were carried out without success. Cracking occurred in the joint area during the cold isostatic pressing process. It seems that ceramics with high green strength and similar green density are essential when joining ceramics by combined CIP and HIP processes.

• OSTI ID: 5727798
• Journal Information: Journal of the American Ceramic Society; (United States), Vol. 76:10; ISSN 0002-7820
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
COLD PRESSING
HOT PRESSING
COMPOSITE MATERIALS
FABRICATION
ZIRCONIUM OXIDES
MECHANICAL PROPERTIES
POWDERS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
MATERIALS
MATERIALS WORKING
OXIDES
OXYGEN COMPOUNDS
PRESSING
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication