Process for producing piezo-electric or pyro-electric composite

Details Process for producing piezo-electric or pyro-electric composite Process for producing piezo-electric or pyro-electric composite

1985-10-03

1988-03-22

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

29 2535, 264 24, 264 61, 264 81, 264 82, 264128, 264139, 264162, B29C 7104

Patent

active

047327170

ABSTRACT:
The invention provides a process for producing a piezo-electric or pyro-electric composite sheet in which particles of a piezo-electric or pyro-electric sintered body (ceramics) are dispersed in the form of a single layer in an insulating high polymeric substance, and the particles are in direct contact with electrodes made on both sides of the sheet. The composite sheet is produced by forming a sheet of an insulating high polymeric substance having dispersed therein particles of a piezo-electric or pyro-electric sintered body (ceramics) in the form of a single layer, then removing the surface skin from both sides of the sheet to expose the particles from both sides of the sheet; and making electrodes on both sides of the sheet and implying a voltage difference thereto to effect poling of the sheet.

REFERENCES:
patent: 3164645 (1965-01-01), De Vries et al.
patent: 3250833 (1966-05-01), Wagner
patent: 3517093 (1970-06-01), Wentzel
patent: 3620933 (1971-11-01), Grunwald et al.
patent: 3694243 (1972-09-01), Campbell
patent: 4265841 (1981-05-01), Fujimori et al.
"Flexible Composite Transducers", Mat. Res. Bull., vol. 13, pp. 599-607, 1978.
"Connectivity and Piezoelectric-Pyroelectric Composites", Mat. Res. Bull., vol. 13, pp. 525-536, 1978.

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