Effects of Zircon Additive on the Properties of 95-Alumina Ceramic

Abstract:

Article Preview

The mechanism of the effect that zircon additive had on the properties of 95-alumina ceramic was studied and compared with that of zirconia additive. The results show that zircon additive can decrease the sintering temperature of 95-alumina ceramic, the suitable content of zircon additive is 3% and the suitable sintering temperature is1630°C; under these conditions, the 95-alumina composite ceramic can obtain satisfactory sintering and mechanical properties. Compared with zirconia additive, besides the stress-induced-phase-transformation of ZrO2 and micro-cracks, the toughened mechanism of 95-alumina ceramic with zircon additive also includes zirconia secondary crystallization in the liquid phase.

Info:

Periodical:

Key Engineering Materials (Volumes 280-283)

Edited by:

Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li

Pages:

1013-1016

Citation:

B. J. Cheng et al., "Effects of Zircon Additive on the Properties of 95-Alumina Ceramic", Key Engineering Materials, Vols. 280-283, pp. 1013-1016, 2005

Online since:

February 2007

Export:

Price:

$38.00

[1] Z.J. Zhou, C.B. Cuan and X.M. Yang: Mater. Mech. Eng. Vol. 21, No. 3 (1997), p.37.

[2] M.Q. Yu, S.G. Fan and L.M. Zhang: Bull. Soc. Ceram. Vol. 4 (2002), p.31.

[3] N.C. Biswas and S.P. Chaudhuri: Ceram. Inter. Vol. 23 (1997), p.69.

[4] T. Ono, K. Nagata, M. Hashiba, E. Miura, Y. Nurishi and T. Shimada: J. Mater. Sci. Vol. 24 (1989), pp. (1974).

[5] P. Homerin, F. Thevenot, G. Orange, G. Fantozzi, V. Vendeneede, A. Leriche and F. Cambier: J. Physique CI Vol. 47 (1986), p.717.

[6] F.E. Buresh: Adv. in Ceram. Vol. 12 (1984), p.306. Fig. 4 SEM micrograph of 9 # sample fired at 1630°C.