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Gadolinium doped BiFeO3-PbTiO3 ((Bi1-xGdx)FeO3-PbTiO3, BGF-PT) crystalline solution ceramics for x=0, 0.1, 0.2 and 0.3 are studied in this report. X-ray diffraction (XRD) result reveals that all ceramics are in single perovskite structure. Phase transition from rhombohedral to tetragonal is observed at x=0.1. Enhanced dielectric properties with k=863 and tandelta=0.023 at the frequency of 102 Hz are...
The Samarium-modified, lead titanate ceramics with a composition of (Pb/sub 0.67/Ca/sub 0.15/Sr/sub 0.06/Sm/sub 0.08/) (Ti/sub 0.98/Mn/sub 0.02/)O/sub 3/ were prepared by conventional mixed-oxide method. By properly varying the sintering and poling conditions, the samples with zero temperature coefficient of resonant frequency were fabricated. The piezoelectric and dielectric properties were measured;...
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