The study prepares new type of ceramic with traditional solid-phase sintering method(1-x)K0.5Na0.5(Nb0.95 Ta0.05)O3-x(Bi0.5Yb0.5)0.95K0.05ZrO3((1-x)KNNT-xBYKZ).The results of XRD,SEM,EDS and other instruments show that BYKZ completely enters the KNN lattice,and forms a single perovskite structure.When x=0.0,the ceramic is O phase;when 0.0＜x≤0.03,the ceramic is O-T phase;when 0.03＜x≤0.04,the ceramic is R-O-T phase;when 0.04＜x ≤0.05,the ceramic is R-phase.The performance test shows that the ceramics have the best performance in the polycrystalline phase boundary(PPB)region of x=0.04(d33=289 pC/N,kp=41.8％,εr=1217,tanδ=2.63％,Pr=31 μC/cm2,Ec=23.85 kV/cm,and Tc=314 ℃).
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