Skip to main content

Ferroelectric Properties of Pb(Zn1/3Nb2/3)O3–PbTiO3–RNbO3(R=Na, K) Ceramics

Buy Article:

$43.00 plus tax (Refund Policy)

We investigate the ferroelectric properties of Pb(Zn1/3Nb2/3)O3–PbTiO3(PZN–PT)-based ceramics, which are stabilized by adding a small amount of NaNbO3 (NN) and KNbO3 (KN). As the content of alkali niobate increased, the ferroelectric properties of Pb(Zn1/3Nb2/3)O3–PbTiO3–RNbO3 (PZN–PT–RN; R=Na, K) became softer, which was more pronounced in PZN–PT–KN. The difference in the piezoelectric properties between PZN–PT–KN and PZN–PT–NN was explained by the cation size effect. Because the ionic size of Na is smaller than that of K, the Na ion can retain the ferroelectricity of the solid solution more effectively. The field-induced strain of 85PZN–5PT–10NN under 10 kV/cm was as high as 0.1%. Also, the addition of NN increased the tunability of dielectric constant significantly. At a composition of 85PZN–5PT–20NN, the tunability was 90% and no hysteresis was observed. In contrast to RN, the increase in the content of PT caused the transition from relaxor to normal ferroelectrics, which were accompanied by the structural change from the rhombohedral to tetragonal phase.
No References
No Citations
No Supplementary Data
No Data/Media
No Metrics

Document Type: Research Article

Affiliations: 1: School of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea 2: Materials Physics & Application Division, Los Alamos National Lab, Los Alamos, New Mexico 87545 3: Korea Research Institute of Standards and Science, Yuseong Daejeon 305-600, South Korea

Publication date: 2007-11-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more