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

Xiaozhou Liu, Tingting Zhang, Shujun Zhang, Wenwu Cao

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish (US)
Pages (from-to)2287-2291
Number of pages5
JournalChinese Science Bulletin
Volume59
Issue number19
DOIs
StatePublished - May 2014

All Science Journal Classification (ASJC) codes

  • General

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