Piezoelectric material, piezoelectric element, and electronic apparatus
AssigneeCanon Kabushiki Kaisha
InventorsTakanori Matsuda, Tatsuo Furuta, Hisato Yabuta, Akira Uebayashi
Life of this patent
Estimating the term…
Loading patent…
AssigneeCanon Kabushiki Kaisha
InventorsTakanori Matsuda, Tatsuo Furuta, Hisato Yabuta, Akira Uebayashi
Estimating the term…
Provided is a piezoelectric material which is free of lead, has small temperature dependence of a piezoelectric constant and has a satisfactory piezoelectric constant. The piezoelectric material includes: an oxide having a perovskite-type structure containing Ba, Ca, Ti, and Zr; Mn; Bi; and W, wherein a ratio of the sum of the Ba and the Ca with respect to the sum of the Ti and the Zr is 0.986 or more and 1.02 or less, and wherein, with respect to 100 parts by mass of the oxide, a content of the Mn is 0.040 part by mass or more and 0.360 part by mass or less, a content of the Bi is 0.050 part by mass or more and 0.240 part by mass or less, and a content of the W is 0.100 part by mass or more and 0.380 part by mass or less.
A piezoelectric material comprising:
Dependencies are inferred from the claim text.