Application of Bonded Multilayer Technology to Relaxor-Based Single Crystals for Imaging Transducer Applications

Award Information
Agency:
Department of Defense
Branch
Defense Advanced Research Projects Agency
Amount:
$97,303.00
Award Year:
2001
Program:
SBIR
Phase:
Phase I
Contract:
DAAH0101CR141
Award Id:
53285
Agency Tracking Number:
01SB1-0056
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
357 Inverness Dr. South, Suite A, Englewood, CO, 80112
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
155242126
Principal Investigator:
MichaelZipparo
R&D Engineer
(303) 754-2309
mzipparo@tetradcorp.com
Business Contact:
DennisDietz
Executive Vice President
(303) 754-2306
sazim@tetradcorp.com
Research Institute:
n/a
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.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government