High piezoelectric d31 coefficient and high Tc in PMW-PNN-PZT ceramics sintered at low temperature ☆
Sensors and Actuators A: Physical(2017)
摘要
•Piezoelectric ceramics with low temperature sintering (≤920°C) was developed.•We investigated the effects of two step calcination temperature on the PMW-PNN-PZT ceramics.•The d31=263pC/N, kp=0.689 and Curie temperature (Tc)=340°C were obtained from the ceramics with 1st=1130°C, 2nd=780°C.
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关键词
Piezoelectric d31 coefficient,Columbite precursor,Two step calcination temperature,Planar electromechanical coupling coefficient
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