Effect of ions substitution with different radii on BO6 octahedral distortion of Bi3TiNbO9 high temperature piezoelectric ceramics

Dingwei Hou, Huiqing Fan, Fan Yang, Yuxin Jia, Weijia Wang

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Bi2.99(Li0.5Sm0.5)0.01Ti0.985(W2/3M1/3)0.015NbO9 (abbreviated as B(LS)TNO-15WM, M is Al, Cr, and Sc) were prepared by solid state reaction sintering. The effects of B-site (W2/3M1/3)5+ complex-ion substitution on and their microstructure, piezoelectric properties, and electrical performance were systematically studied. B(LS)TNO-15WCr obtains the highest piezoelectric coefficient (d33). Through the calculation of XRD refined results, it is found that this is due to its greater distortion of BO6 octahedron. In this work, the possible sources of high performance of BTNO based ceramics doped at B-site are analyzed, which provides a certain theoretical support for future work.

Original languageEnglish
Article number132866
JournalMaterials Letters
Volume325
DOIs
StatePublished - 15 Oct 2022

Keywords

  • Aurivillius phase
  • BO6 octahedral distortion
  • Electroceramics
  • Piezoelectric materials

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