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IDT Sensors for Detection of Heat Sensitization in Aluminum Alloys

Award Information

Department of Defense
Award ID:
Program Year/Program:
2011 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Mound Laser & Photonics Center, Inc.
2941 College Dr. Kettering, OH -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2011
Title: IDT Sensors for Detection of Heat Sensitization in Aluminum Alloys
Agency: DOD
Contract: N00167-11-P-0197
Award Amount: $79,977.00


An innovative surface acoustic wave (SAW) sensor for in situ detection and real-time monitoring of heat sensitization in 5XXX series aluminum alloys will be developed. These active sensors generate ultrasonic Rayleigh waves at a fundamental frequency and then detect higher harmonics of that frequency produced when the sound waves scatter off of regions of beta phase Al3Mg2 that form during heat sensitization. The degree of harmonic sound detection will be correlated to how the alloy would respond to the ASTM-G67 chemical test. This will create a calibrated method for direct in situ measurement of changes in physical properties of the alloy as well as the risk of future anodic degradation, stress corrosion cracking or exfoliation or alternatively, the expected remaining life of the material. The sensors will be durable and field deployable either for spot checks for material or permanent emplacement in the structure of interest. Due to the long range of Rayleigh waves, the surface are coverage standard for the sensor will easily be met. The low power requirements are consistent with methods of self powering. Operation in adverse conditions will be demonstrated and are not expected to pose any barriers for the technology.

Principal Investigator:

Ronald Jacobsen
Program Manager
(937) 865-4046

Business Contact:

Larry Dosser
(937) 865-4481
Small Business Information at Submission:

Mound Laser & Photonics Center, Inc.
P.O. Box 223 Miamisburg, OH -

EIN/Tax ID: 030409881
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No