Fabrication and characterization of dual-channeled zirconia ceramic scaffold

In Kook Jun, Young-Hag Koh, Ju H. Song, Hyoun E. Kim

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A novel porous ceramic with a structure containing two three-dimensional (3D) pore channels in a tetragonal zirconia polycrystals (TZP) ceramic was fabricated using a combination of a CNC-machining method and slurry coating process. A graphite scaffold with a single interconnected 3D channel as a template was prepared using CNC machining and lamination. The surfaces of the graphite scaffold were then coated uniformly with the TZP slurry, followed by heat treatment at 900°C for 3 h in air to remove the graphite material completely via thermal oxidation and at 1400°C for 3 h in air to sinter the TZP walls. This process produced a dual-channeled TZP scaffold with an additional 3D channel, which replicated the 3D graphite structure with the pre-existing channel. The fabricated scaffold showed ultra-high porosity (91), high surface area, and high compressive strength (2.04 MPa), as well as a tightly controlled pore structure.

Original languageEnglish
Pages (from-to)2021-2026
Number of pages6
JournalJournal of the American Ceramic Society
Volume89
Issue number6
DOIs
Publication statusPublished - 2006 Jun 1
Externally publishedYes

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Graphite
Polycrystals
Scaffolds
Zirconia
graphite
ceramics
Fabrication
slurry
Machining
sinter
lamination
air
Pore structure
Air
compressive strength
Compressive strength
coating
surface area
Porosity
porosity

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Fabrication and characterization of dual-channeled zirconia ceramic scaffold. / Jun, In Kook; Koh, Young-Hag; Song, Ju H.; Kim, Hyoun E.

In: Journal of the American Ceramic Society, Vol. 89, No. 6, 01.06.2006, p. 2021-2026.

Research output: Contribution to journalArticle

Jun, In Kook ; Koh, Young-Hag ; Song, Ju H. ; Kim, Hyoun E. / Fabrication and characterization of dual-channeled zirconia ceramic scaffold. In: Journal of the American Ceramic Society. 2006 ; Vol. 89, No. 6. pp. 2021-2026.
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