Method of manufacturing multi-layered flextensional piezoelectri

Details Method of manufacturing multi-layered flextensional piezoelectri Method of manufacturing multi-layered flextensional piezoelectri

1998-08-21

2000-12-05

Yao, Sam Chuan

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1563099, 156311, 156228, 29 2535, 29446, B32B 3104, B32B 3120

Patent

active

061561452

ABSTRACT:
A method for manufacturing a multi-layer piezoelectric transducer having enhanced mechanical output displacement capability resulting from an increase in the amount of "pre-stress" applied to the electroactive (ceramic) layer by the pre-stress layer. The pre-stress layer is heated to a temperature above the temperature of the ceramic layer and bonded at an elevated temperature to the ceramic layer, such that, as the pre-stress layer subsequently cools down to ambient temperature, it applies a compressive stress to the ceramic layer. During the step of cooling the layers to ambient temperature, the temperature drop of the pre-stress layer is greater than the temperature drop of the ceramic layer, thereby increasing the amount of "pre-stress" applied to the electroactive (ceramic) layer by the pre-stress layer.

REFERENCES:
patent: 2509439 (1950-05-01), Langer
patent: 3773580 (1973-11-01), Provost
patent: 3808073 (1974-04-01), Navarre
patent: 3850725 (1974-11-01), Spielau et al.
patent: 3952898 (1976-04-01), Bayer
patent: 3960635 (1976-06-01), LaRoy et al.
patent: 5868882 (1999-02-01), Kern, Jr. et al.
patent: 5891291 (1999-04-01), Okamoto et al.

Affiliated with

Also associated with

Rating

Method of manufacturing multi-layered flextensional piezoelectri does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of manufacturing multi-layered flextensional piezoelectri, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing multi-layered flextensional piezoelectri will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-957729