Composite piezoelectric apparatus and method

Details Composite piezoelectric apparatus and method Composite piezoelectric apparatus and method

2006-09-19

2006-09-19

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S358000, C367S155000, C367S157000, C600S347000, C204S192150, C204S192180, C029S025350

Reexamination Certificate

active

07109642

ABSTRACT:
The present invention relates to composite piezoelectric apparatus, transducers and methods of manufacture. In an embodiment, a composite piezoelectric apparatus has a sacrificial base and pillar array. Different volume percents of piezoelectric material are used in the sacrificial base and pillar array. A first volume percent in the base is lower than the second volume percent in the pillar array. In this way, the sacrificial base can be easily removed from the pillar array after the base and pillar array are sintered in the manufacture of a final composite piezoelectric transducer. A method of manufacturing a composite piezoelectric transducer from a sacrificial base and pillar array and a composite piezoelectric transducer made by the method are provided. A composite piezoelectric transducer stack is provided.

REFERENCES:
patent: 4330593 (1982-05-01), Shrout et al.
patent: 4412148 (1983-10-01), Klicker et al.
patent: 4628223 (1986-12-01), Takeuchi et al.
patent: 4658176 (1987-04-01), Nakaya et al.
patent: 4683396 (1987-07-01), Takeuchi et al.
patent: 4726099 (1988-02-01), Card et al.
patent: 4755707 (1988-07-01), Nakaya et al.
patent: 4801835 (1989-01-01), Nakaya et al.
patent: 4825115 (1989-04-01), Kawabe et al.
patent: 4876776 (1989-10-01), Whatmore et al.
patent: 4894194 (1990-01-01), Janney
patent: 4944891 (1990-07-01), Sagong et al.
patent: 4978643 (1990-12-01), Venkataswamy et al.
patent: 5028362 (1991-07-01), Janney et al.
patent: 5083568 (1992-01-01), Shimazaki et al.
patent: 5145900 (1992-09-01), Sterzel et al.
patent: 5145908 (1992-09-01), Jenny et al.
patent: 5334903 (1994-08-01), Smith
patent: 5340510 (1994-08-01), Bowen
patent: 5362791 (1994-11-01), Ebenhoech et al.
patent: 5456877 (1995-10-01), Tiegs et al.
patent: 5539965 (1996-07-01), Safari et al.
patent: 5615466 (1997-04-01), Safari et al.
patent: 5660877 (1997-08-01), Venkataramani et al.
patent: 5684884 (1997-11-01), Nakaya et al.
patent: 5691960 (1997-11-01), Gentilman et al.
patent: 5695697 (1997-12-01), Trübenbach et al.
patent: 5722137 (1998-03-01), Lorraine et al.
patent: 5818149 (1998-10-01), Safari et al.
patent: 5844349 (1998-12-01), Oakley et al.
patent: 5869767 (1999-02-01), Hayward et al.
patent: 5885493 (1999-03-01), Janney et al.
patent: 5950291 (1999-09-01), Gentilman et al.
patent: 6020675 (2000-02-01), Yamashita et al.
patent: 6051913 (2000-04-01), King
patent: 6066279 (2000-05-01), Walls et al.
patent: 6088894 (2000-07-01), Oakley et al.
patent: 6179894 (2001-01-01), Gay
patent: 6228299 (2001-05-01), Janney et al.
patent: 6262517 (2001-07-01), Schmidt et al.
patent: 6352763 (2002-03-01), Dillon et al.
patent: 6365082 (2002-04-01), Walls et al.
patent: 6488871 (2002-12-01), Nomura et al.
patent: 6713526 (2004-03-01), Dillon et al.
patent: 6720712 (2004-04-01), Scott et al.
patent: 6868594 (2005-03-01), Gururaja
patent: 6919668 (2005-07-01), Nagahara et al.
patent: 2002/0101646 (2002-08-01), Ide et al.
patent: 2005/0156362 (2005-07-01), Arnold et al.
patent: 2005/0203231 (2005-09-01), Halpert et al.
patent: 1 306 148 (2003-05-01), None
patent: WO 88/07505 (1988-10-01), None
patent: WO 01/71648 (2001-09-01), None
Gebhardt, S. and Schönecker, A.,Materials Mechanics, Fracture Mechanics, Micro Mechanics(Preprint), 1999, 5 pages available at http://www.smart-material.com/Whatis.php, last accessed Aug. 10, 2005.
Gebhardt, S. et al., “Fine Scale 1-3 Composites Fabricated by the Soft Mold Process: Preparation and Modeling,”Ferroelectrics 241:67-73, Overseas Publishers Association (2000).
Gebhardt, S. et al., “Quasistatic and dynamic properties of 1-3 composites made by soft molding,”J. Eur. Ceramic Soc. 23:153-159, Elsevier Science Ltd. (2003).
MSI: Technologies, 3 pages available at http://www.matsysinc.com/coretech.html (printed May 19, 2004).
Mueller, V. et al., “Characterization of Nonlinear Properties of Soft PZT—Piezoceramics,”Ferroelectrics 240:67-74, Overseas Publishers Association (2000).
Qiu, J. et al., “Fabrication of piezoeletric ceramic fibers by extrusion of Pb(Zr, Ti)O3powder and Pb(Zr, Ti)O3sol mixture,”Smart Materials and Structures 12:331-337, IOP Publishing Ltd. (Jun. 2003).
Steihausen, R. et al., “Finescaled Piezoelectrics 1-3 Composites: Properties and Modeling,”J. Eur. Ceramic Soc. 19:1289-1293, Elsevier Science Limited (1999).

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