Paper Title:
Influence of CuO Additive on Physical Properties of BaTiO3 Ceramics
  Abstract

Various ceramics were prepared by the conventional solid-state reaction technique according to the compositional formula of (1-x) BaTiO3 + x CuO with x = 0.00 ~ 0.05. The influence of CuO additive on microstructure, crystalline structure and dielectric and piezoelectric properties were investigated. It has been found that CuO acts like a sintering aid in the CuO-modified BaTiO3 ceramics to promote the ceramic densification and suppress the abnormal grain growth during sintering process, and decreases the orthorhombic-tetragonal phase transition temperature. The CuO-modified BaTiO3 ceramics show desirable microstructures with high density, small average grain size and uniform grain size distribution. For the one with x = 0.01, it has the good piezoelectric properties of d33 = 300 pC/N, kp = 0.49, k33 = 0.62 and Qm = 425 at room temperature, and exhibits a ε' peak at -5°C and a d33 maximum of 353 pC/N at 0°C, respectively.

  Info
Periodical
Edited by
Chengming Li, Chengbao Jiang, Zhiyong Zhong and Yichun Zhou
Pages
287-291
DOI
10.4028/www.scientific.net/MSF.687.287
Citation
Z. Zhang, J. L. Zhang, S. F. Shao, P. Zheng, C. L. Wang, "Influence of CuO Additive on Physical Properties of BaTiO3 Ceramics", Materials Science Forum, Vol. 687, pp. 287-291, 2011
Online since
June 2011
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$32.00
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