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Elastic anomalies near phase transitions of lead-free (Na,Bi)TiO3 and (Ba,Zr)TiO3 ferroelectric ceramics

Journal Article


Abstract


  • We have investigated the temperature dependence of elastic modulus for various ferroelectric ceramics in the temperature range of 20–90 °C. The Na0.5Bi0.5TiO3 (NBT) ceramics has a phase transition at 200 °C, thus exhibits minimal change in elastic modulus up to 90 °C, while the elastic modulus of the BaZr0.07Ti0.93O3 (BZT-7) shows 12.5 % change at the phase transition temperature of 70 °C and that of the BaZr0.15Ti0.85O3 (BZT-15) ceramics shows 34.6 % change at the phase transition temperature of 60 °C. The variations of elastic modulus will affect the temperature stability of devices made by these lead-free ferroelectric ceramics.

UOW Authors


  •   Liu, Xiaozhou (external author)
  •   Zhang, Tingting (external author)
  •   Zhang, Shujun
  •   Cao, Wenwu (external author)

Publication Date


  • 2014

Citation


  • Liu, X., Zhang, T., Zhang, S. & Cao, W. (2014). Elastic anomalies near phase transitions of lead-free (Na,Bi)TiO3 and (Ba,Zr)TiO3 ferroelectric ceramics. Chinese Science Bulletin, 59 (19), 2287-2291.

Scopus Eid


  • 2-s2.0-84902252182

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3068

Number Of Pages


  • 4

Start Page


  • 2287

End Page


  • 2291

Volume


  • 59

Issue


  • 19

Place Of Publication


  • China

Abstract


  • We have investigated the temperature dependence of elastic modulus for various ferroelectric ceramics in the temperature range of 20–90 °C. The Na0.5Bi0.5TiO3 (NBT) ceramics has a phase transition at 200 °C, thus exhibits minimal change in elastic modulus up to 90 °C, while the elastic modulus of the BaZr0.07Ti0.93O3 (BZT-7) shows 12.5 % change at the phase transition temperature of 70 °C and that of the BaZr0.15Ti0.85O3 (BZT-15) ceramics shows 34.6 % change at the phase transition temperature of 60 °C. The variations of elastic modulus will affect the temperature stability of devices made by these lead-free ferroelectric ceramics.

UOW Authors


  •   Liu, Xiaozhou (external author)
  •   Zhang, Tingting (external author)
  •   Zhang, Shujun
  •   Cao, Wenwu (external author)

Publication Date


  • 2014

Citation


  • Liu, X., Zhang, T., Zhang, S. & Cao, W. (2014). Elastic anomalies near phase transitions of lead-free (Na,Bi)TiO3 and (Ba,Zr)TiO3 ferroelectric ceramics. Chinese Science Bulletin, 59 (19), 2287-2291.

Scopus Eid


  • 2-s2.0-84902252182

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3068

Number Of Pages


  • 4

Start Page


  • 2287

End Page


  • 2291

Volume


  • 59

Issue


  • 19

Place Of Publication


  • China