Preparation and characterization of Y-TZP powders coated with alumina

Chih G. Chen, Hsing I. Hsiang, Shu Wei Hsu

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this study, alumina was coated onto yttria tetragonally stabilized zirconia (Y-TZP)core powder using aluminum nitrate with urea in an aqueous solution. Boehmite coating onto the surface of Y-TZP powders was confirmed using transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), Fourier transform infrared (FTIR) spectroscopy and zeta potential measurements. The sintering behaviors of Y-TZP powders with and without an alumina coating were investigated using a dilatometer and scanning electron microscopy (SEM). Boehmite coating onto the surface of Y-TZP powders significantly improved the densification of the resulting ceramic bodies. The relative density of the Y-TZP with a boehmite coating sintered at 1350°C can reach 97.3%.

Original languageEnglish
Pages (from-to)131-134
Number of pages4
JournalJournal of Ceramic Processing Research
Volume9
Issue number2
Publication statusPublished - 2008 Jun 11

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

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