Microstructure and Phase Composition of (Ce, Mg)-PSZ Ceramics

Abstract:

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Magnesia, ceria partially stabilized zirconia (Ce,Mg)-PSZ ceramics with net shape microstructure are prepared using a processing method similar to that of conventional Mg-PSZ ceramics, then heat-treated at 1500°C for different time. Microstructure and phase composition of (Ce, Mg)-PSZ samples with different amount of CeO2 doped were investigated using SEM and X-ray diffraction. The addition of CeO2 could impede the formation of monoclinic phase and inhibit the growth of cubic grains. A microstructure with net-shape cubic grains, in which tetragonal precipitates interweave to a nanoporous structure is obtained by adding 4∼8 mol% CeO2 in 10mol% MgO doped zirconia matrix and then heat treatment at 1500°C for different time. The precipitate morophology might be related with the addition of CeO2 and the heat treatment temperatures.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

1194-1196

DOI:

10.4028/www.scientific.net/KEM.336-338.1194

Citation:

Z. P. Shen et al., "Microstructure and Phase Composition of (Ce, Mg)-PSZ Ceramics", Key Engineering Materials, Vols. 336-338, pp. 1194-1196, 2007

Online since:

April 2007

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$35.00

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