Skip to main content
placeholder image

Enhanced piezoelectric properties of Nb and Mn co-doped CaBi4Ti4O15 high temperature piezoceramics

Journal Article


Abstract


  • The properties of CaBi4Ti4O15 (CBT), CaBi4Ti3.95Nb0.05O15 (CBTN) and CaBi4Ti3.95Nb0.05O15 + 0.2 wt% MnO2 (CBTN–Mn) ferroelectric ceramics with bismuth layer structure were studied. Significant enhancement of piezoelectric coefficient was obtained for CBTN–Mn ceramics (d33 = 23 pC/N), being nearly three times that of CBT counterpart (d33 = 8 pC/N). Together with its high Curie temperature (Tc = 790 °C), low dielectric loss (tanδ = 0.2%), high resistivity (ρ = 4.2 × 106 Ω cm at 500 °C) and good thermal stability up to 700 °C, the CBTN–Mn ceramic is a potential material for high temperature piezoelectric applications.

UOW Authors


  •   Shen, Zongyang (external author)
  •   Sun, Huajun (external author)
  •   Tang, Yanxue (external author)
  •   Li, Yueming (external author)
  •   Zhang, Shujun

Publication Date


  • 2015

Citation


  • Shen, Z., Sun, H., Tang, Y., Li, Y. & Zhang, S. (2015). Enhanced piezoelectric properties of Nb and Mn co-doped CaBi4Ti4O15 high temperature piezoceramics. Materials Research Bulletin, 63 129-133.

Scopus Eid


  • 2-s2.0-84919360943

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2850

Number Of Pages


  • 4

Start Page


  • 129

End Page


  • 133

Volume


  • 63

Place Of Publication


  • United Kingdom

Abstract


  • The properties of CaBi4Ti4O15 (CBT), CaBi4Ti3.95Nb0.05O15 (CBTN) and CaBi4Ti3.95Nb0.05O15 + 0.2 wt% MnO2 (CBTN–Mn) ferroelectric ceramics with bismuth layer structure were studied. Significant enhancement of piezoelectric coefficient was obtained for CBTN–Mn ceramics (d33 = 23 pC/N), being nearly three times that of CBT counterpart (d33 = 8 pC/N). Together with its high Curie temperature (Tc = 790 °C), low dielectric loss (tanδ = 0.2%), high resistivity (ρ = 4.2 × 106 Ω cm at 500 °C) and good thermal stability up to 700 °C, the CBTN–Mn ceramic is a potential material for high temperature piezoelectric applications.

UOW Authors


  •   Shen, Zongyang (external author)
  •   Sun, Huajun (external author)
  •   Tang, Yanxue (external author)
  •   Li, Yueming (external author)
  •   Zhang, Shujun

Publication Date


  • 2015

Citation


  • Shen, Z., Sun, H., Tang, Y., Li, Y. & Zhang, S. (2015). Enhanced piezoelectric properties of Nb and Mn co-doped CaBi4Ti4O15 high temperature piezoceramics. Materials Research Bulletin, 63 129-133.

Scopus Eid


  • 2-s2.0-84919360943

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2850

Number Of Pages


  • 4

Start Page


  • 129

End Page


  • 133

Volume


  • 63

Place Of Publication


  • United Kingdom