【摘 要】
：
Pb(Ni1/3Nb2/3)0.5(Ti0.7Zr0.3)0.5O3 (PNN-PZT) ceramic powders were pre calcined by solid-state reaction method.PNN-PZT piezoelectric ceramics were fabricated
【机 构】
：
The Aeronautical Key Laboratory for Smart Materials & Structures,Nanjing University of Aeronautics &
论文部分内容阅读
Pb(Ni1/3Nb2/3)0.5(Ti0.7Zr0.3)0.5O3 (PNN-PZT) ceramic powders were pre calcined by solid-state reaction method.PNN-PZT piezoelectric ceramics were fabricated by tape-casting process.The effects of sintering temperature on physical and electrical properties of the PNN-PZT ceramics were studied.The results show that the ceramics sintered at 1225℃ have the best overall properties, d33=780pC/N, εr=6.18×103, kp=0.6, tanδ =0.017, Pr =26.36 C/cm2.Compared to the ceramics with the same composition prepared by the traditional process, the properties of the ceramics prepared by tape-casting process have been improved greatly.
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