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Expanded Operating Domain Piezoelectric Single Crystals

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
77924
Program Year/Program:
2007 / STTR
Agency Tracking Number:
N064-034-0154
Solicitation Year:
2006
Solicitation Topic Code:
N06-T034
Solicitation Number:
2006.
Small Business Information
TRS Ceramics, Inc.
2820 East College Avenue State College, PA 16801-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 2007
Title: Expanded Operating Domain Piezoelectric Single Crystals
Agency / Branch: DOD / NAVY
Contract: N00014-07-C-0858
Award Amount: $1,487,867.00
 

Abstract:

Single crystal relaxor ferroelectrics, PMN-PT, have shown great promise for broad bandwidth sonar transducers. However, the benefits of PMN-PT are somewhat counterbalanced by its maximum temperature limitation (~80 to 95 degrees C), low coercive field (~2kV/cm) and low mechanical quality factor (60-80) for compact, high power and high duty cycle applications. The new crystal compositions with expanded operating temperature ranges are highly desired for such applications. The Phase I results suggest that PMN-PT can stabilize the perovskite phase of the crystal melt when it consists of high temperature capable binary compounds. The resulting PMN-PT based ternary compounds have significantly increased phase transition temperature and coercive field and growth conditions very similar to pure PMN-PT. In phase II, TRS proposes to grow large-size, PMN-PT-based ternary relaxor piezoelectric crystals with optimized compositions to further expand operating temperature ranges. By applying the well-established Bridgman process, not only will the cost and time for developing these new materials be dramatically reduced, but also the manufacturability of these materials will be insured. The goal is to elevate phase transition temperature to 125oC -150 oC, coercive field to 5kV/cm and mechanical Q to over 150.

Principal Investigator:

Jun Luo
Research scientist
(814) 238-7485
jun@trstechnologies.com

Business Contact:

Wesley S. Hackenberge
President
(814) 238-7485
wes@trstechnologies.com
Small Business Information at Submission:

TRS CERAMICS, INC.
2820 East College Avenue State College, PA 16801-6801

EIN/Tax ID: 251637806
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
MRI AT PENN STATE UNIV.
259 Materials Research Lab
University Park, PA 16802-
Contact: Shujun Zhang
Contact Phone: (814) 863-2639