Coating processes – Electrical product produced – Piezoelectric properties
Patent
1998-05-01
1999-05-04
Talbot, Brian K.
Coating processes
Electrical product produced
Piezoelectric properties
29 2535, B05D 512
Patent
active
059002743
ABSTRACT:
A method of forming a piezoelectric element which includes piezoelectric material having a variable functionally gradient d-coefficient comprising coating a block having a uniform concentration of piezoelectric material by the steps of applying a first layer having piezoelectric material with a different chemical composition than the block onto a surface of the block to provide a different crystallographic structure than the block; and sequentially applying one or more layers of piezoelectric material on the first layer and subsequent layers with different chemical compositions of piezoelectric material also having different crystallographic structures than the block and the subsequently applied layers so as to form the piezoelectric element which has a functionally gradient d-coefficient.
REFERENCES:
patent: 5233256 (1993-08-01), Hayashi et al.
patent: 5302935 (1994-04-01), Chatterjee
patent: 5336282 (1994-08-01), Ghosh et al.
patent: 5358913 (1994-10-01), Chatterjee et al.
patent: 5674794 (1997-10-01), Chatterjee et al.
patent: 5677072 (1997-10-01), Chatterjee et al.
Chatterjee Dilip K.
Furlani Edward P.
Ghosh Syamal K.
Eastman Kodak Company
Owens Raymond L.
Talbot Brian K.
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