Abstract
A coextrusion process was used to fabricate three-directionally macrochanneled tetragonal zirconia polycrystals (TZP) with a calcium phosphate coating layer. The three-directionally connected structure was built by a unique alignment and a lamination of the TZP surrounded by calcium phosphate and carbon black filaments. After a thermal treatment (binder burnout and sintering), a 52 vol% array of 290 μm, three-directionally connected macrochannels, which were clad on the inside with bioactive calcium phosphate, had formed on the sintered TZP body. For a comparison, porous calcium phosphate with a similar structure was also fabricated. The compressive strength (96 MPa) of the three-directionally macrochanneled TZP with a bioactive calcium phosphate layer was much higher than that (24 MPa) of the three-directionally macrochanneled calcium phosphate.
Original language | English |
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Pages (from-to) | 2027-2030 |
Number of pages | 4 |
Journal | Journal of the American Ceramic Society |
Volume | 86 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2003 Dec |
Externally published | Yes |
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry