Piezoelectric ceramic composition for actuators

Details Piezoelectric ceramic composition for actuators Piezoelectric ceramic composition for actuators

1991-09-19

1993-02-23

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Titanate, zirconate, stannate, niobate, or tantalate or...

252 629, C04B 3546, C04B 3549

Patent

active

051889927

ABSTRACT:
A piezoelectric ceramic composition for actuators, composed of lead, lanthanum, zirconium, titanium, magnesium, zinc, niobium, manganese, chromium and oxygen atoms, which contains manganese in an amount of at most 1.5% by weight as calculated as Mn.sub.2 O and chromium in an amount of at most 0.5% by weight as calculated as Cr.sub.2 O.sub.3, relative to a main component composition of the formula (I):

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Journal of Materials Science, vol. 22, No. 6, Jun. 1987, London, G.B., pp. 2209-2215, P. Roy-Chowdhury, et al., "Effect of Dopants on the Microstructure and Lattice Parameters of Lead Zirconate-Titanate Ceramics".

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