Piezoelectric ceramic composition

Details Piezoelectric ceramic composition Piezoelectric ceramic composition

1999-03-05

2000-06-27

Koslow, C. Melissa

Compositions

Piezoelectric

501134, 501136, C04B 35453, H01L 41187

Patent

active

060803274

ABSTRACT:
A lead-oxide-free piezoelectric ceramic composition having an electromechanical coupling coefficient greater than a predetermined value and having a Curie point of at least 500.degree. C., whose main component is a two-component-based solid solution of the formula of (1-x)Bi.sub.a Ti.sub.b Nb.sub.c O.sub.9 -xNa.sub.p Bi.sub.q Nb.sub.r O.sub.9, and which has a bismuth layer structure in the range of 0<x<1,

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