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Proceedings Paper

Micro-Raman scattering and DC field dependent dielectric properties of BaZrxTi1-xO3 relaxor ferroelectric ceramics
Author(s): Shanming Ke; Haitao Huang; Huiqing Fan; H. L. W. Chan; L. M. Zhou
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Paper Abstract

Barium zirconate titanate BaZrxTi1-xO3 (BZT, x=0.25-0.55) ceramics have been prepared by traditional mixed oxide process. Dielectric and Raman scattering experiments were performed on various compositions. The evolution of Raman normal modes with increasing x suggested that BZT exhibits a variation of properties from conventional ferroelectric to relaxor with increasing Zr concentration. The DC electric field tunable behavior of the environmental friendly lead-free perovskite BZT relaxor ceramics was studied in the temperature range from 77 to 350 K. The results have been analyzed in relation to tunability and K factor (figure of merit) of the tunable dielectric materials.

Paper Details

Date Published: 1 November 2007
PDF: 6 pages
Proc. SPIE 6423, International Conference on Smart Materials and Nanotechnology in Engineering, 64232E (1 November 2007); doi: 10.1117/12.779867
Show Author Affiliations
Shanming Ke, Northwestern Polytechnical Univ. (China)
The Hong Kong Polytechnic Univ. (Hong Kong China)
Haitao Huang, The Hong Kong Polytechnic Univ. (Hong Kong China)
Huiqing Fan, Northwestern Polytechnical Univ. (China)
H. L. W. Chan, The Hong Kong Polytechnic Univ. (Hong Kong China)
L. M. Zhou, The Hong Kong Polytechnic Univ. (Hong Kong China)


Published in SPIE Proceedings Vol. 6423:
International Conference on Smart Materials and Nanotechnology in Engineering

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