Synthesis and piezoelectric properties of Li, Ca and Mn-codoped BaTiO 3 by a solvothermal approach

T. Kimura, Q. Dong, S. Yin, T. Hashimoto, A. Sasaki, S. Aisawa, T. Sato

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

3 at.% Li-doped (Ba1-xCax)(Ti1-yMn y)O3 particles with the Ca2+ mole fraction, x, of 0-0.09 and Mn mole fraction, y, of 0 and 0.0005 were synthesized by a solvothermal approach at 200°C. The products consisted of nanoparticles of 50-100 nm in diameter, and did not change very much depending on the amount of Li, Ca and Mn-codoping. The change in relative dielectric constant, Δr, in around room temperature decreased by doping Ca 2+, and the lowest Δr (4.51%) could be realized at x value of 0.03. The mechanical quality factor, Qm, of 3 at.% Li-doped (Ba0.97Ca0.03)(Ti0.9995Mn0.0005) O3 increased to 521, and Δr decreased to 1.72%, while the piezoelectric constant, d33 (234pC/N), and electromechanical coupling factor, kp (40.0%), did not change very much compared with 3 at.% Li-doped BaTiO3.

Original languageEnglish
Article number012018
JournalIOP Conference Series: Materials Science and Engineering
Volume47
Issue number1
DOIs
Publication statusPublished - 2013
Event2nd International Conference on Competitive Materials and Technological Processes, IC-CMTP 2012 - Miskolc-Lillafured, Hungary
Duration: 2012 Oct 82012 Oct 12

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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