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

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$98,910.00
Award Year:
2003
Program:
SBIR
Phase:
Phase I
Contract:
N00014-03-M-0224
Agency Tracking Number:
03SB1-0040
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
TRS CERAMICS, INC.
2820 East College Avenue, State College, PA, 16801
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
782683007
Principal Investigator:
Paul Rehrig
Director of Research & De
(814) 238-7485
paul@trstechnologies.com
Business Contact:
Wesley Hackenberger
Managing Director
(814) 238-7485
wsh@trsceramics.com
Research Institution:
n/a
Abstract
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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