Abstract
We fabricated highly porous ceramics having biaxial pore channels using a combination of CNC-machining and ceramic dip-coating methods. For this goal, the graphite template having one interconnected pore channel was prepared using the CNC-machining and lamination, and then dip-coated with tetragonal zirconia polycrystal (TZP) slurry, followed by heat-treatment at 900 °C for 3 h in air to remove the graphite template and at 1400 °C for 3 h to sinter TZP walls. This heat-treatment produced an addition 3-D channel as a representative of the graphite template, while preserving the preexisting channel, thereby allowing the sample to have biaxial pore channels. The fabricated sample showed ultra-high porosity (∼ 91%) and high compressive strength (∼ 6.5 MPa), as well as having a well controlled 375-μm2 pore structure.
Original language | English |
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Pages (from-to) | 878-882 |
Number of pages | 5 |
Journal | Materials Letters |
Volume | 60 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2006 Apr |
Externally published | Yes |
Bibliographical note
Copyright:Copyright 2008 Elsevier B.V., All rights reserved.
Keywords
- Bone scaffold
- Ceramics
- Mechanical properties
- Porous
- Rapid prototyping
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering