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Trans Tech Publications, Materials Science Forum, (727-728), p. 1387-1392, 2012

DOI: 10.4028/www.scientific.net/msf.727-728.1387

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Synthesis and Characterization of Porous ZrO<sub>2</sub>-Y<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub> Ceramics Prepared by Coprecipitation

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Zirconium dioxide (zirconia) ceramics are known by its high strength and toughness and titanium dioxide (titania) ceramics has outstanding surface properties. The ceramic composite formed between the two oxides are expected to have advantages of both ceramics, especially when its surface area is increased by pores. In this work, ceramic composites of ZrO2-Y2O3-TiO2were synthesized by coprecipitation and rice starch was added as pore former in 10, 20 and 30 wt%. Powders were cold pressed as cylindrical pellets and sintered at 1500 °C for 01 hour and ceramics were characterized by techniques as Archimedes method for density measurements, X-ray diffraction and scanning electron microscopy. Results showed that pores are inhomogeneously distributed through ceramic bodies.