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Application of Bonded Multilayer Technology to Relaxor-Based Single Crystals…

Award Information

Agency:
Department of Defense
Branch:
Defense Advanced Research Projects Agency
Award ID:
53285
Program Year/Program:
2001 / SBIR
Agency Tracking Number:
01SB1-0056
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 1
Fiscal Year: 2001
Title: Application of Bonded Multilayer Technology to Relaxor-Based Single Crystals for Imaging Transducer Applications
Agency / Branch: DOD / DARPA
Contract: DAAH0101CR141
Award Amount: $97,303.00
 

Abstract:

Bonded multilayer crystal technology will be developed for ultrasound transducer applications. Single crystal materials have demonstrated enormously high coupling constants, over 94% in some modes. Bonded multilayers have already been demonstrated tomaintain the coupling inherent in the base material, and to result in an effective increase in the dielectric constant of the structure equal to the square of the number of layers. The application of multilayers to single crystals will result in whatshould be considered the ultimate trasnducer material. Multilayer crystal composites will have a low acoustic impedance, and a very high effective dielectric constant and coupling coefficient. Modeling shows that the bandwidth that will be obtainablewith these devices will exceed 120%, even for arrays which normally are severely limited because of the much lower dielectric associated with traditional materials and configurations.The benefits of applying these materials to ultrasonic arrays will bemuch higher bandwidth and sensitivity of devices, particularly those which are usually limited by element area, such as phased arrays and 1.5-D and 2-D arrays. Even single crystals are limited in their performance without the capacitance increaseassociated with a multtilayer.

Principal Investigator:

Michael Zipparo
R&D Engineer
3037542309
mzipparo@tetradcorp.com

Business Contact:

Dennis Dietz
Executive Vice President
3037542306
sazim@tetradcorp.com
Small Business Information at Submission:

TETRAD CORP.
357 Inverness Dr. South, Suite A Englewood, CO 80112

EIN/Tax ID: 840993916
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No