Flux-Bridgman Growth of Large PZN-PT Piezoelectric Single Crystals

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-03-M-0224
Agency Tracking Number: 03SB1-0040
Amount: $98,910.00
Phase: Phase I
Program: SBIR
Awards Year: 2003
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
2820 East College Avenue, State College, PA, 16801
DUNS: 782683007
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Paul Rehrig
 Director of Research & De
 (814) 238-7485
Business Contact
 Wesley Hackenberger
Title: Managing Director
Phone: (814) 238-7485
Email: wsh@trsceramics.com
Research Institution
TRS Technologies, Inc. is pleased to respond to DARPA's request for cost effective manufacturing of high performance piezoelectric single crystals. The objective of the Phase I program is to develop a cost-effective fabrication process for manufacturinglarge relaxor piezoelectric PZN-PT crystals by the Bridgman method. Currently, PZN-PT is grown by the flux technique; which results in relatively small crystals (<30mm in diameter). PZN-PT can not be grown by the conventional Bridgman method (directlyfrom its melt), because perovskite PZN-PT is not stable at its melt temperature. However, by using a flux to stabilize the perovskite phase in a Bridgman furnace that allows the use of a seed crystal to control nucleation, we will be able to produce muchlarger and therefore less expensive PZN-PT than is currently possible. For this program TRS will develop a solution or flux-Bridgman process with nucleation controlled by PMN-PT seed crystals for the production of PZN-PT crystals greater than 1

* Information listed above is at the time of submission. *

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