Fabrication and characterization of dual-channeled zirconia ceramic scaffold

In Kook Jun, Young Hag Koh, Ju Ha Song, Hyoun Ee 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
Externally publishedYes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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