Corona discharge poling process

Details Corona discharge poling process Corona discharge poling process

1980-10-16

1982-12-21

Rubinson, G. Z.

Electricity: electrical systems and devices

Electric charge generating or conducting means

Use of forces of electric charge or field

307400, H01F 102

Patent

active

043652832

ABSTRACT:
The present invention provides a process for preparing piezoelectric film using a corona discharge device wherein a multi-layer of pellicles, of which at least one or more is a piezoelectric sensitive film and at least one other of the multi-layer is a companion pellicle (i.e. a pellicle with a conductance no less than that of the piezoelectric sensitive pellicle when the conductance is measured under the poling conditions of the corona discharge and in the direction of the discharge field), is subjected to a corona discharge between a pair of electrodes of which at least one such electrode has a textured surface.

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patent: 4172905 (1979-10-01), Metcalfe et al.
"Corona Discharge Treatment Process and Apparatus", IBM Tech. Disclosure Bull., vol. 19, No. 5, Oct., 1976, p. 1644.
P. D. Southgate, "Room--temperature Poling and Morphology Changes in Pyroelectric Polyvinylidene Fluoride", Applied Physics Letters, vol. 28, No. 5, Mar. 1, 1976, pp. 250 to 252.

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