Imaging Science and Photochemistry ›› 2017, Vol. 35 ›› Issue (2): 174-178.DOI: 10.7517/j.issn.1674-0475.2017.02.174

Previous Articles     Next Articles

Effect of CaCO3 Dopant on Structure and Electrical Properties of Ba(Ti, Sn)O3 Lead-free Piezoelectric Ceramics

LIU Jiejing   

  1. Hengshui University of China, Hengshui 053000, Hebei, P. R. China
  • Received:2017-01-25 Revised:2017-02-21 Online:2017-03-15 Published:2017-03-15


(Ba1-xCax)(Ti0.98Sn0.02)O3(BCTS,x=0.00,0.01,0.02,0.03) lead-free ceramics were prepared by traditional solid-state reaction method. Effect of microstructure on phase structure and piezoelectric properties with different sintering temperatures were studied. According to the results by X-ray diffraction, all samples possess pure perovskite phases without second phases. By scanning electron microscopy (SEM) images show that the grain was uniform, phases structure was more dense and with less porosity, the grain growth of spiral structure, when the sintering temperatures is 1450℃. The optimum electrical properties can be obtained at x=0.01 and sintering temperatures is 1450℃:d33=346 pC/N.

Key words: scanning electron microscopy, lead-free piezoceramics, phase structure, microstructure, piezoelectric properties