Paper Title:
Microstructure Characteristics of Ce-ZTA Ceramic Composites Obtained by Liquid Phase Sintering
  Abstract

Zirconia-toughened alumina (ZTA) ceramics with Ce-TZP (tetragonal zirconia polycrystalline doped with ceria) volume fraction on 33% were prepared with the addition.. The influence of glass infiltrated method was investigated. Coprecipitated Zr and Ce hydroxide mixture was obtained from ZrOCl2.8H2O and CeCl3. 7H2O aqueous solution. CeO2-ZrO2 calcinated powder was compacted and the compacted samples were sintered at 1180°C. Powder samples were characterized by scanning electronic microscopy (SEM), The volume fraction of each phase, the grains size and shapes, and the porosity were investigated with SEM. The relative density and shrinkage was investigate too. The results showed that the crystalline matrix was composed by SiO2 -B2O3-La2O3-Al2O3-Ce-TZP and revealed the important role played the glassy phase in the densification of this ceramic composite.

  Info
Periodical
Materials Science Forum (Volumes 530-531)
Edited by
Lucio Salgado and Francisco Ambrozio Filho
Pages
421-424
DOI
10.4028/www.scientific.net/MSF.530-531.421
Citation
H. Beck, M. do C. de A. Nono, F. Piorino Neto, "Microstructure Characteristics of Ce-ZTA Ceramic Composites Obtained by Liquid Phase Sintering", Materials Science Forum, Vols. 530-531, pp. 421-424, 2006
Online since
November 2006
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Price
$32.00
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