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

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Aluminum Oxide
Powders
Alumina
Coatings
Dilatometers
Yttria stabilized zirconia
Zeta potential
Densification
Urea
Fourier transform infrared spectroscopy
Energy dispersive spectroscopy
Nitrates
Sintering
Transmission electron microscopy
Aluminum
Scanning electron microscopy
aluminum oxide hydroxide

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

Cite this

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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{\%}.",
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Preparation and characterization of Y-TZP powders coated with alumina. / Chen, Chih G.; Hsiang, Hsing-I; Hsu, Shu Wei.

In: Journal of Ceramic Processing Research, Vol. 9, No. 2, 11.06.2008, p. 131-134.

Research output: Contribution to journalArticle

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