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Domain size engineering in 0.5%MnO2-(K0.5Na0.5)NbO3 lead free piezoelectric crystals

Journal Article


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Abstract


  • The piezoelectric property of [001]-oriented 0.5%MnO2-(K0.5Na0.5)NbO3 (Mn-KNN) crystals was studied as a function of domain size, being poled with different electric fields at 205 C (above orthorhombic to tetragonal phase transition temperature To-t). The piezoelectric coefficients d33 and relative dielectric constants er were found to increase from 270 pC/N to 350 pC/N and 730 to 850 with the domain size decreasing from 9 to 2 lm, respectively. The thermal stability of piezoelectric property was investigated, where the d33 value for [001]-oriented Mn-KNN crystals with domain

    size of 2 lm was found to decrease to 330 pC/N at depoling temperature of 150 C, with minimal variation of 6%. The results reveal that domain size engineering is an effective way to improve the piezoelectric properties of Mn-KNN crystals.

UOW Authors


  •   Lin, Dabin (external author)
  •   Zhang, Shujun
  •   Cai, Changlong (external author)
  •   Liu, Weiguo (external author)

Publication Date


  • 2015

Citation


  • Lin, D., Zhang, S., Cai, C. & Liu, W. (2015). Domain size engineering in 0.5%MnO2-(K0.5Na0.5)NbO3 lead free piezoelectric crystals. Journal Of Applied Physics, 117 (7), 074103-1-074103-5.

Scopus Eid


  • 2-s2.0-84923384251

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3902&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2852

Start Page


  • 074103-1

End Page


  • 074103-5

Volume


  • 117

Issue


  • 7

Place Of Publication


  • United States

Abstract


  • The piezoelectric property of [001]-oriented 0.5%MnO2-(K0.5Na0.5)NbO3 (Mn-KNN) crystals was studied as a function of domain size, being poled with different electric fields at 205 C (above orthorhombic to tetragonal phase transition temperature To-t). The piezoelectric coefficients d33 and relative dielectric constants er were found to increase from 270 pC/N to 350 pC/N and 730 to 850 with the domain size decreasing from 9 to 2 lm, respectively. The thermal stability of piezoelectric property was investigated, where the d33 value for [001]-oriented Mn-KNN crystals with domain

    size of 2 lm was found to decrease to 330 pC/N at depoling temperature of 150 C, with minimal variation of 6%. The results reveal that domain size engineering is an effective way to improve the piezoelectric properties of Mn-KNN crystals.

UOW Authors


  •   Lin, Dabin (external author)
  •   Zhang, Shujun
  •   Cai, Changlong (external author)
  •   Liu, Weiguo (external author)

Publication Date


  • 2015

Citation


  • Lin, D., Zhang, S., Cai, C. & Liu, W. (2015). Domain size engineering in 0.5%MnO2-(K0.5Na0.5)NbO3 lead free piezoelectric crystals. Journal Of Applied Physics, 117 (7), 074103-1-074103-5.

Scopus Eid


  • 2-s2.0-84923384251

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3902&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2852

Start Page


  • 074103-1

End Page


  • 074103-5

Volume


  • 117

Issue


  • 7

Place Of Publication


  • United States