Piezoelectric material, piezoelectric element, multilayered piezoelectric element, liquid ejection head, liquid ejection apparatus, ultrasonic motor, optical equipment, vibration apparatus, dust removing apparatus, imaging apparatus, and electronic equipment

Provided is a lead-free piezoelectric material having a satisfactory and stable piezoelectric constant and electric insulation property in a wide practical temperature range. Provided is a piezoelectric material, including a perovskite-type metal oxide represented by the following general formula (1...

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Hauptverfasser: SHIMIZU CHIEMI, UCHIDA FUMIO, KUBOTA MAKOTO, HAYASHI JUMPEI, MAEDA KENJI
Format: Patent
Sprache:eng
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Zusammenfassung:Provided is a lead-free piezoelectric material having a satisfactory and stable piezoelectric constant and electric insulation property in a wide practical temperature range. Provided is a piezoelectric material, including a perovskite-type metal oxide represented by the following general formula (1) as a main component, the piezoelectric material containing Mn in a content of 0.01 part by weight or more and 0.80 part by weight or less with respect to 100 parts by weight of the perovskite-type metal oxide: (LiαxNaαyKαzBa Bi0.5α+γ)a(Tiα+ Feγ) O3 . . . (1), where 0.800 α 0.999, 0 0.150, 0.001 γ 0.050, α+ +γ=1, 0 x 0.050, 0.045 y 0.450, 0.045 z 0.450, 0.450 x+y+z 0.500, and 0.980 a 1.020.