Preparation and Characterization of Zirconia-Based Multi-Phase Nanocomposite


Article Preview

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.



Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong




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




[1] R. Vaban and D. Stover: J. Mater. Proce. Techno. Vol. 2 (1999), p.77.

[2] H. Gleiter: Prog. Mater. Sci. Vol. 33(1989), p.223.

[3] R.H.J. Hannink, P.M. Kelly and B.C. Muddle: J. Am. Ceram. Soc. Vol. 83 (2000), p.461.

[4] F. Wakai, S. Sakaguchi and Y. Matsuno: J. Adv. Ceram. Mater. Vol. 1 (1986), p.259.

[5] A.A. Sharif and M.L. Mecartney: J. Act. Mater. Vol. 51 (2003), p.1633.

[6] R. Chaim, R. Ramamoorthy, A. Gold stein, et al.: J. Euro. Ceram. Soc. Vol. 23 (2003), P. 647.

[7] Z. Shen, M. Johnson, Z. Zhao, et al.: J. Am. Ceram. Soc. Vol. 85 (2001), p.1923. Fig. 4 Undeformed and super- plastically deformed specimens at 1400°C.