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Properties of Ultrafine High Curie Temperature (1-x)BiScO3-xPbTiO3 Ferroelectric Ceramics

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Abstract:

Ultrafine (1-x)BiScO3-xPbTiO3 ferroelectric ceramics were successfully prepared by employing nanocrystalline ceramic powder. The average ceramic grain sizes range from 0.4μm to 1.2μm with different phases and different proceeds. The studies show the average grain sizes vary with the calcining and sintering temperature as well as the compositions in different phases. Ceramics, sintered at 1020°C for 3h, in morphotropic phase boundary (MPB) have the smallest grain sizes around 0.4 μm, those in tetragonal phase and rhombohedral phase have larger grains around 0.9μm. Meanwhile, the piezoelectric property and Curie temperature were founded size-dependent when the grain sizes are smaller than 1μm.

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Periodical:

Key Engineering Materials (Volumes 336-338)

Pages:

235-237

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.336-338.235

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Online since:

April 2007

Authors:

Wei Zhao, Xiao Hui Wang, Zhi Lun Gui, Long Tu Li

Keywords:

Curie Temperature, Piezoelectric, Size Effect, Ultra-Fine Ceramics

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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