Method of manufacturing flextensional transducer using pre-curve

Details Method of manufacturing flextensional transducer using pre-curve Method of manufacturing flextensional transducer using pre-curve

1997-02-07

1998-12-15

Lorin, Francis J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

29 2535, 264229, 310330, H01L 4122

Patent

active

058491252

ABSTRACT:
A method for manufacturing pre-stressed piezoelectric actuators using a pre-curved piece of ceramic is provided. An adhesive, preferably a polyimide, is disposed between a metal pre-stress metal layer and a pre-curved PZT ceramic. The entire composite structure is heated to a temperature above the melting point of the adhesive material and then subsequently cooled to allow the adhesive layer to set. As a result of the difference in thermal contraction rates of the materials, the pre-curved PZT ceramic is compressively stressed. This pre-stressing provides a piezoelectric actuator which is durable, and produces a higher displacement than a conventional piezoelectric actuator.

REFERENCES:
patent: 2447061 (1948-08-01), Franklin
patent: 3192420 (1965-06-01), Cowan
patent: 3202736 (1965-08-01), Horan et al.
patent: 3666979 (1972-05-01), McElroy
patent: 5407519 (1995-04-01), Joffe et al.
patent: 5471721 (1995-12-01), Haertling
patent: 5632841 (1997-05-01), Hellbaum et al.

Affiliated with

Also associated with

Rating

Method of manufacturing flextensional transducer using pre-curve 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 flextensional transducer using pre-curve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing flextensional transducer using pre-curve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1454232