Piezoelectric ceramic composition

Details Piezoelectric ceramic composition Piezoelectric ceramic composition

1998-12-03

2000-04-18

Koslow, C. Melissa

Compositions

Piezoelectric

Lead, zirconium, titanium or compound thereof containing

501134, C04B 35491, C04B 35497

Patent

active

060511575

ABSTRACT:
A piezoelectric ceramic composition which contains a main component represented by the general formula of x(Pb.sub.2 Me.sub.2 O.sub.7).sub.1/2 .multidot.(1-x)[Pb(Zr.sub.1-y Ti.sub.y)O.sub.3 ] in which x and y are numerical values satisfying the relations 0.01.ltoreq.x.ltoreq.0.05 and 0.40.ltoreq.y.ltoreq.0.55, and Me is at least one of Sb, Nb and Ta. In the component, 0.1 to 0.8% by weight of Cr calculated in terms of chrome oxide and 0.01 to 0.1% by weight of Si calculated in terms of silicon oxide with respect to the weight of 1 mol of the main component are added as subsidiary components.

REFERENCES:
patent: 4169803 (1979-10-01), Tanaka et al.

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