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Effect of doping ions on structure and electrical properties of lead-free KNN ceramics

Journal Article


Abstract


  • Doping effect on the lattice parameters, vibration modes, dielectric and piezoelectric properties of LiSbO3, LiTaO3 and LiNbO3 substituted lead-free K0.5Na0.5NbO3 (KNN) ceramics are investigated. All compositions are crystallized in morphotropic phase boundary region. Enhanced piezoelectric and electromechanical response d33∼176-197 pC/N, kp ∼45%-48%, and k1 ∼34%-47% obtained in the doped ceramics are due to the presence of the polymorphic phase transition between orthorhombic and tetragonal phase at room temperature.

UOW Authors


  •   Yin, Na (external author)
  •   Jalalian, A (external author)
  •   Gai, Zhigang (external author)
  •   Zhao, Lanling (external author)
  •   Wang, Xiaolin

Publication Date


  • 2014

Citation


  • Yin, N., Jalalian, A., Gai, Z., Zhao, L. & Wang, X. (2014). Effect of doping ions on structure and electrical properties of lead-free KNN ceramics. Advanced Materials Research, 1058 190-195.

Scopus Eid


  • 2-s2.0-84912054687

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1351

Number Of Pages


  • 5

Start Page


  • 190

End Page


  • 195

Volume


  • 1058

Place Of Publication


  • Switzerland

Abstract


  • Doping effect on the lattice parameters, vibration modes, dielectric and piezoelectric properties of LiSbO3, LiTaO3 and LiNbO3 substituted lead-free K0.5Na0.5NbO3 (KNN) ceramics are investigated. All compositions are crystallized in morphotropic phase boundary region. Enhanced piezoelectric and electromechanical response d33∼176-197 pC/N, kp ∼45%-48%, and k1 ∼34%-47% obtained in the doped ceramics are due to the presence of the polymorphic phase transition between orthorhombic and tetragonal phase at room temperature.

UOW Authors


  •   Yin, Na (external author)
  •   Jalalian, A (external author)
  •   Gai, Zhigang (external author)
  •   Zhao, Lanling (external author)
  •   Wang, Xiaolin

Publication Date


  • 2014

Citation


  • Yin, N., Jalalian, A., Gai, Z., Zhao, L. & Wang, X. (2014). Effect of doping ions on structure and electrical properties of lead-free KNN ceramics. Advanced Materials Research, 1058 190-195.

Scopus Eid


  • 2-s2.0-84912054687

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1351

Number Of Pages


  • 5

Start Page


  • 190

End Page


  • 195

Volume


  • 1058

Place Of Publication


  • Switzerland