Single Phase Formation and Electric Properties of Bismuth Niobium Based Perovskite-Type Oxides
The structural, and dielectric and piezoelectric properties of (1-x)BaTiO3 – x Bi1/2K1/2(X1/3Nb2/3)O3 (X=Cu, X=Mg or X=Zn) ceramic were studied. The single perovskite phase was observed when x≤0.5 for X=Cu and Mg and x≤0.2 for X=Zn. As x increased, the dielectric constant peak temperature and piezoelectric properties continuously decreased for X=Mg and Zn. On the other hand, those of X=Cu possessed a local maxima at x=0.7 and the peak temperature was 200°C and the large field piezoelectric constant, d33*, was 94 pC/N.
Chazono Hirokazu, Fujihara Shinobu, Katayama Keiichi, Masumoto Hiroshi, Mizoguchi Teruyasu, Osada Minoru, Shinozaki Kazuo and Takeda Hiroaki
A. Shimamura et al., "Single Phase Formation and Electric Properties of Bismuth Niobium Based Perovskite-Type Oxides", Key Engineering Materials, Vol. 485, pp. 81-84, 2011