The effect of (Li,Ce) doping in aurivillius phase material Na0.25K0.25Bi4.5Ti4O15

Zhi Gang Gai, Jin Feng Wang, Ming Lei Zhao, Wen bin Sun, Shang Qian Sun, Bao Quan Ming, Peng Qi, Li mei Zheng, Juan Du, Chun Ming Wang, Shujun Zhang, Thomas R. Shrout

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Abstract

The effect of (Li,Ce) substitution at the A-site on the properties of Na0.25K0.25Bi4.5Ti4O15 (NKBT)-based ceramics was investigated. The piezoelectric coefficient d33 of the [(Na0.5K0.5)Bi]0.42(LiCe)0.04[]0.04Bi4Ti4O15 ceramic was found to be 25 pC N-1, the highest value of the NKBT-based ceramics, and almost twice the d33 values of pure NKBT ceramics (∼13 pC N-1). The thickness coupling factor kt was found to be 20%, which, together with the high TC (∼615 °C) and stable piezoelectric properties, suggests that (Li,Ce)-modified NKBT-based materials are promising candidates for high-temperature applications.

Original languageEnglish (US)
Pages (from-to)115-118
Number of pages4
JournalScripta Materialia
Volume59
Issue number1
DOIs
StatePublished - Jul 2008

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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