Lifetime Control and Prediction of ZrO2/CePO4 Composites

Abstract:

Article Preview

Based on the relation between the stress intensity factor Ki and the crack velocity V, lifetime prediction and control were discussed and studied for machinable Ce-ZrO2/CePO4 ceramics. The relationship among lifetime, starting cracks and grain sizes were investigated by a set of designed simulation setting with a definite actual environmental conditions. It was concluded that crack started from larger weak interfaces of two phases and linking of cracking weak interfaces each other, and the lifetime of Ce-ZrO2/CePO4 composites could be controlled and predicted by adjusting of grain sizes of CePO4, which was depended on design of composites.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

2505-2506

DOI:

10.4028/www.scientific.net/KEM.336-338.2505

Citation:

H. Y. Du et al., "Lifetime Control and Prediction of ZrO2/CePO4 Composites", Key Engineering Materials, Vols. 336-338, pp. 2505-2506, 2007

Online since:

April 2007

Export:

Price:

$35.00

[1] H. Gao, J.C. Liu, H.Y. Du, et al.: Scr. Mater. Vol. 49 (2003), p.515.

[2] L.J. Wang, J.C. Liu, K.L. Wang, et al.: J. Rare Earths Vol. 21(2003), p.645.

[3] J.B. Davis, D.B. Marshall and P.E.D. Morgan: J. Eur. Ceram. Soc. Vol. 20 (2000), p.583.

[4] D.B. Marshall and P.E.D. Morgan: J. Am. Ceram. Soc. Vol. 81 (1998), p.951.

[5] H. Dannheim, U. Schmid and A. Roosen: J. Eur. Ceram. Soc. Vol. 24(2004), p.2187.

[6] H.Y. Du, J. Han and Y.L. Han: Rear Metal Mater. Eng. (to be published). Fig. 1 log KI-log V curves of Ce-ZrO2 /10wt%CePO4 composites sintered at different temperature Fig. 2 Surface SEM image of Ce-ZrO2/10wt%CePO4 composites sintered at 1500 o C after actual wear operating 1500 hours in an erosive environmental condition.

In order to see related information, you need to Login.