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Electrical Properties of High Curie Point Pb0.6Bi0.4 (Ti0.75Zn0.15Fe0.10)O3 Ceramics

Perovskite-structured Pb0.6Bi0.4(Ti0.75Zn0.15Fe0.1)O3 ceramic patches were prepared with conventional electronic ceramic processing on the basis of its near-zero thermal expansion coefficient, in contrast to most of PbTiO3-based solid solutions with decreasing tetragonality and Curie temperature. For the 1% Nb+0.5% Mg-doped samples sintered at 1050°C, enhanced tetragonality of c/a=1.100 and Curie temperature of Tc=705°C, dielectric constant of ɛ=204, dielectric loss of tan [delta]=1.7%, and piezoelectric constant of d33=2.0 pC/N were obtained.

Authors:   Feifei An, Jian Yu
Journal:   Journal of the American Ceramic Society
Year:   2010
DOI:   10.1111/j.1551-2916.2010.03605.x
Publication date:   08-Feb-2010
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