Structural, dielectric, and piezoelectric properties of mn-doped BaTiO 3-Bi(Mg1/2Ti1/2)O3-BiFeO 3 ceramics

Ichiro Fujii, Ryuta Mitsui, Kouichi Nakashima, Nobuhiro Kumada, Mikio Shimada, Takayuki Watanabe, Jumpei Hayashi, Hisato Yabuta, Makoto Kubota, Tetsuro Fukui, Satoshi Wada

研究成果: ジャーナルへの寄稿学術誌査読

67 被引用数 (Scopus)

抄録

Mn-doped (0.9 - x)BaTiO3-0.1Bi(Mg1/2Ti 1/2)O3-xBiFeO3 (x = 0.6, 0.7, and 0.8) ceramics were studied as candidate lead-free piezoelectric materials. The crystal structures were a pseudo-cubic perovskite at x = 0.6, a rhombohedral perovskite at x = 0.8, and a mixture of the pseudocubic and rhombohedral perovskite at x = 0.7. The Curie temperature was found to be 470 °C at x = 0.6 and more than 600 °C at x = 0.7 and 0.8. A strong pinning of domain walls was observed for high-field responses at x = 0.7 and 0.8, which was relaxed by high-temperature annealing and subsequent quenching. Piezoelectric properties increased with decreasing x, and the small-field piezoelectric constants d33 and d31 were 94 and 31 pC/N at x = 0:6, respectively.

本文言語英語
論文番号09ND07
ジャーナルJapanese journal of applied physics
50
9 PART 3
DOI
出版ステータス出版済み - 9月 1 2011
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 工学(全般)
  • 物理学および天文学(全般)

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