Abstract
Pb(Sb1/2Nb1/2)0.01(Mn1/3Sb2/3)0.01(Ni1/3Nb2/3)0.5(Zr0.3Ti0.7)0.48O3 piezoelectric ceramics were prepared by traditional solid-state sintering method. Firstly, the dispersant of PSN-PMS-PNN-PZT piezoelectric ceramics was determined and the effect of dispersants doping on the phase structure, microstructure morphology and electrical properties of ceramics was studied. The results show that all samples are single perovskite phase. When both balls are added to the dispersant, ceramics exhibit the optimum properties: d33 = 907 pC/N, εr = 6889, kp = 65.62%, tanδ = 1.53%. Performance of the sample has been greatly improved compared with that without dispersant doping.
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