Metal-coated, ordered void piezoelectric ceramic material

Details Metal-coated, ordered void piezoelectric ceramic material Metal-coated, ordered void piezoelectric ceramic material

1990-09-27

1992-08-11

Ryan, Patrick J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

4283066, 4283122, 4283166, 4284111, 428426, 428433, 428457, 428688, 428195, 428901, B32B 900

Patent

active

051377764

ABSTRACT:
An ordered void piezoelectric ceramic material (e.g. lead zirconate titan (PZT)) has its inner void surfaces coated with a thin flexible layer of a metal (e.g. silver) by a process which includes the following steps. First a quantity of an ordered void piezoelectric ceramic material is obtained. Next, the ordered void piezoelectric ceramic material is impregnated with a solution containing a metal, such that inner surfaces of the voids of the ceramic material are wetted with the impregnating solution. Then, excess impregnating solution is removed from the external edges of the piezoelectric ceramic material, leaving the inner surfaces of the voids wetted with impregnating solution. Then, the void-wetted piezoelectric ceramic material is fired to bring about formation of a thin flexible metal coating on the inner surfaces of the voids of the piezoelectric ceramic material.

REFERENCES:
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patent: 4217684 (1980-08-01), Brisken et al.
patent: 4227111 (1980-10-01), Cross et al.
patent: 4333065 (1982-06-01), DeVries
patent: 4353957 (1982-10-01), Rutt et al.
patent: 4613784 (1986-09-01), Haun et al.
patent: 4683161 (1987-07-01), Rice et al.
patent: 4928264 (1990-05-01), Kahn

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