Investigation on dielectric and piezoelectric properties of (1-x)(Na 0.5K0.5)NbO3-xSrTiO3 ceramics

K. Sasanuma, S. Tsukada, Jun Kano, S. Kojima, R. Wang, K. Hanada, K. Matsusaki, H. Bando

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Lead-free piezoelectric (1-x)(Na0.5K0.5)NbO3-xSrTiO3 ((1-x)NKN- xST) solid solution has been fabricated around a morphotropic phase boundary (MPB) by Spark-Plasma-Sintering method. The phase diagram around MPB was studied by the dielectric measurement. The piezoelectric constant d33 and electromechanical constant kp measurements shows that MPB is about at x = 0.05. Inverse dielectric constants are well fitted by the extended Curie-Weiss law above the Curie temperature and its fitting result shows that the fitting parameters, C and n values show the maxima for 0.95NKN-0.05ST. We suggest the existence of another phase boundary around x = 0.05. To confirm the another phase boundary, the Raman spectra of 0.975NKN-0.025ST and 0.9NKN-0.1ST samples at the tetragonal phases have been measured and comparison has been done.

Original languageEnglish
Title of host publicationFerroelectrics
Pages106-112
Number of pages7
Volume348
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8 - Tsukuba, Japan
Duration: May 15 2006May 19 2006

Other

Other8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8
CountryJapan
CityTsukuba
Period5/15/065/19/06

Fingerprint

Phase boundaries
dielectric properties
ceramics
Curie-Weiss law
Spark plasma sintering
Curie temperature
sparks
Phase diagrams
Raman scattering
Solid solutions
sintering
Permittivity
solid solutions
Lead
phase diagrams
permittivity
Raman spectra

Keywords

  • Dielectric
  • Diffuse phase transition
  • Ferroelectrics
  • Lead-free
  • MPB
  • Piezoelectric ceramics

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Sasanuma, K., Tsukada, S., Kano, J., Kojima, S., Wang, R., Hanada, K., ... Bando, H. (2007). Investigation on dielectric and piezoelectric properties of (1-x)(Na 0.5K0.5)NbO3-xSrTiO3 ceramics. In Ferroelectrics (Vol. 348, pp. 106-112) https://doi.org/10.1080/00150190701196237

Investigation on dielectric and piezoelectric properties of (1-x)(Na 0.5K0.5)NbO3-xSrTiO3 ceramics. / Sasanuma, K.; Tsukada, S.; Kano, Jun; Kojima, S.; Wang, R.; Hanada, K.; Matsusaki, K.; Bando, H.

Ferroelectrics. Vol. 348 2007. p. 106-112.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sasanuma, K, Tsukada, S, Kano, J, Kojima, S, Wang, R, Hanada, K, Matsusaki, K & Bando, H 2007, Investigation on dielectric and piezoelectric properties of (1-x)(Na 0.5K0.5)NbO3-xSrTiO3 ceramics. in Ferroelectrics. vol. 348, pp. 106-112, 8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8, Tsukuba, Japan, 5/15/06. https://doi.org/10.1080/00150190701196237
Sasanuma K, Tsukada S, Kano J, Kojima S, Wang R, Hanada K et al. Investigation on dielectric and piezoelectric properties of (1-x)(Na 0.5K0.5)NbO3-xSrTiO3 ceramics. In Ferroelectrics. Vol. 348. 2007. p. 106-112 https://doi.org/10.1080/00150190701196237
Sasanuma, K. ; Tsukada, S. ; Kano, Jun ; Kojima, S. ; Wang, R. ; Hanada, K. ; Matsusaki, K. ; Bando, H. / Investigation on dielectric and piezoelectric properties of (1-x)(Na 0.5K0.5)NbO3-xSrTiO3 ceramics. Ferroelectrics. Vol. 348 2007. pp. 106-112
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AU - Kano, Jun

AU - Kojima, S.

AU - Wang, R.

AU - Hanada, K.

AU - Matsusaki, K.

AU - Bando, H.

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N2 - Lead-free piezoelectric (1-x)(Na0.5K0.5)NbO3-xSrTiO3 ((1-x)NKN- xST) solid solution has been fabricated around a morphotropic phase boundary (MPB) by Spark-Plasma-Sintering method. The phase diagram around MPB was studied by the dielectric measurement. The piezoelectric constant d33 and electromechanical constant kp measurements shows that MPB is about at x = 0.05. Inverse dielectric constants are well fitted by the extended Curie-Weiss law above the Curie temperature and its fitting result shows that the fitting parameters, C and n values show the maxima for 0.95NKN-0.05ST. We suggest the existence of another phase boundary around x = 0.05. To confirm the another phase boundary, the Raman spectra of 0.975NKN-0.025ST and 0.9NKN-0.1ST samples at the tetragonal phases have been measured and comparison has been done.

AB - Lead-free piezoelectric (1-x)(Na0.5K0.5)NbO3-xSrTiO3 ((1-x)NKN- xST) solid solution has been fabricated around a morphotropic phase boundary (MPB) by Spark-Plasma-Sintering method. The phase diagram around MPB was studied by the dielectric measurement. The piezoelectric constant d33 and electromechanical constant kp measurements shows that MPB is about at x = 0.05. Inverse dielectric constants are well fitted by the extended Curie-Weiss law above the Curie temperature and its fitting result shows that the fitting parameters, C and n values show the maxima for 0.95NKN-0.05ST. We suggest the existence of another phase boundary around x = 0.05. To confirm the another phase boundary, the Raman spectra of 0.975NKN-0.025ST and 0.9NKN-0.1ST samples at the tetragonal phases have been measured and comparison has been done.

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