Piezoelectric ceramic composition

Details Piezoelectric ceramic composition Piezoelectric ceramic composition

2011-07-26

2011-07-26

Koslow, C. Melissa (Department: 1734)

Compositions

Piezoelectric

C252S06290R, C501S134000

Reexamination Certificate

active

07985348

ABSTRACT:
A piezoelectric ceramic composition having a large piezoelectric constant (d) and as well having a large Qm value is to be provided. The piezoelectric ceramic composition aimed at has a composition corresponding to a solid solution containing a first compound possessing a rhombohedral crystal-based perovskite structure, a second compound possessing a tetragonal crystal-based perovskite structure, and a third compound. The third compound is a compound oxide containing Bi as a first component element, Mn as a second component element, and a tetravalent metallic element or a pentavalent metallic element as a third component element. The tetravalent metallic element is at least one member selected from the group consisting of Ti, Zr, Hf, and Sn. The pentavalent metallic element is at least one member selected from the group consisting of Nb, Ta, and Sb.

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