PIEZOELECTRIC COMPOSITION AND PIEZOELECTRIC ELEMENT

To provide a piezoelectric composition having a large piezoelectric constant.SOLUTION: A piezoelectric composition comprises an oxide having a perovskite structure. The oxide contains bismuth, barium, iron and titanium. An X-ray diffraction pattern of the piezoelectric composition after a polarization process has a first peak and a second peak in a range of 38.6° or larger and 39.6° or smaller in diffraction angle 2θ; the diffraction angle 2θ of the first peak is smaller than the diffraction angle 2θ of the second peak; and when an intensity of the first peak is represented by I, and an intensity of the second peak is represented by I, I/Iis 0.00 or more and 2.00 or less.SELECTED DRAWING: Figure 6 【課題】大きい圧電定数を有する圧電組成物の提供。【解決手段】圧電組成物は、ペロブスカイト構造を有する酸化物を含み、酸化物が、ビスマス、バリウム、鉄、及びチタンを含み、分極処理後の圧電組成物のＸ線回折パターンは、回折角２θが３８．６°以上３９．６°以下である範囲において、第一ピーク及び第二ピークを有し、第一ピークの回折角２θは、第二ピークの回折角２θよりも小さく、第一ピークの強度が、ＩＬと表され、第二ピークの強度が、ＩＨと表され、ＩＨ／ＩＬが、０．００以上２．００以下である。【選択図】図６