Study on Phase Structure and Electrical Properties of La-Doped (K0.5Na0.5)0.94Li0.06NbO3 Ceramics Conference Paper uri icon


  • Lead-free piezoceramics (K0.5Na0.5)0.94-3xLi0.06LaxNbO3were synthesized by the conventional solid-state reaction process. The effect of La-doping on the phase structure and electrical properties of (K0.5Na0.5)0.94Li0.06NbO3ceramics was investigated. X-ray diffraction analysis showed that the crystal structure of the ceramics changed from coexistence of orthorhombic and tetragonal phases to pseudo-cubic phase with the increase of La-doping level, and the change of phase structure seriously weakened the dielectric, ferroelectric and piezoelectric properties of the ceramics. In addition, it was found that the La-doping improved the density of the ceramics and the ceramics became dense. Meanwhile, the ceramics with La-doping displayed a relative lower loss tangent (tan) from room temperature to approximately 350C.

published proceedings

  • Advanced Materials Research

author list (cited authors)

  • Liu, Y., Chu, R. Q., Xu, Z. J., Chen, Q., Shao, L., An, K., & Li, G. R.

citation count

  • 1

complete list of authors

  • Liu, Yong||Chu, Rui Qing||Xu, Zhi Jun||Chen, Qian||Shao, Lin||An, Kang||Li, Guo Rong

publication date

  • October 2011