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Single Crystal Relaxor-Based Ferroelectrics Offer a Quantum

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
36537
Program Year/Program:
1998 / SBIR
Agency Tracking Number:
36537
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
TETRAD CORPORATION
TETRAD CORPORATION 357 INVERNESS DR S ENGLEWOOD, CO 80112
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1998
Title: Single Crystal Relaxor-Based Ferroelectrics Offer a Quantum
Agency / Branch: DOD / NAVY
Contract: N/A
Award Amount: $1,018,280.00
 

Abstract:

The goal of this program is to apply recent advancements in the growth of piezoelectric single crystal materials to build ultrasound transducers with very broad bandwidth, which can improve and simplify ultrasound imaging for combat casualty care. Relaxor-based ferroelectric materials of PZN-PT and PMN-PT have been shown to have coupling factors for some modes of over 90%. Transducer modeling shows that these properties can theoretically lead to transducers with exceptionally wide bandwidth (over 120%). The set of procedures which would be useful for external imaging during triage in a combat casualty care would take up to three transducers of standard construction ranging from 3.5 MHZ to 7.5 MHZ in center frequency. If a transducer with 120% bandwidth can be constructed, that single transducer can perform all of those imaging functions. Tetrad will work with TRS Ceramics and Crystal Associates who are the leading U.S. manufacturers of high-coupling single crystal material. In Phase I, methods for surface preparation, grinding, metalizing for electrode attachment, bonding of polymers, and processes for building 2-2 and 1-3 composite materials will be investigated. Samples of these materials will be used to build subapertures of medical imaging arrays demonstrating broad bandwidth in the water tank. The goals for Phase II will be to use these designs and production methods to develop complete 1-D and 1.5-D ultrasound imaging arrays and to show images covering the bandwidth achieved.

Principal Investigator:

Dr. Clyde G. Oakley
3037542315

Business Contact:


0
Small Business Information at Submission:

TETRAD CORP.
357 Inverness Dr. SouthSuite A Englewood, CO 80112

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No