Preparation and Characterization of Zirconia-Based Multi-Phase Nanocomposite

Abstract:

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ZrO2 (3Y)-CaO-SiO2-TiO2 powders with excellent chemical homogeneity were synthesized by heating the alcohol-aqueous salt solutions. The powders have good dispersion, with particle size of 11~15nm and no hard agglomeration. The nanocomposite powders were hot-pressed in vacuum. The obtained zirconia-based multi-phase nanocomposites were characterized by using XRD and SEM, as well as relative density testing. The results demonstrated that, even though the sintering temperature was as low as 1250°C, a high relative density of 97.5% was achieved. The superplastic compressive tests of the as-sintered specimens demonstrate that this material behaves good deformability at 1350~1500°C, at which the maximum extrusion pressure is lower than 35MPa.

Info:

Periodical:

Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong

Pages:

762-764

DOI:

10.4028/www.scientific.net/KEM.368-372.762

Citation:

Y. S. Yang et al., "Preparation and Characterization of Zirconia-Based Multi-Phase Nanocomposite", Key Engineering Materials, Vols. 368-372, pp. 762-764, 2008

Online since:

February 2008

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$35.00

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