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A Handheld Sensor for Amorphous Coating Integrity Evaluation

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: D11PC20160
Agency Tracking Number: 09SB3-0020
Amount: $1,124,997.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: SB093-002
Solicitation Number: 2009.3
Solicitation Year: 2009
Award Year: 2011
Award Start Date (Proposal Award Date): 2011-07-01
Award End Date (Contract End Date): 2013-06-30
Small Business Information
470 Century Blvd., Boxwood Commerce Center, Wilmington, DE, -
DUNS: 808480086
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Pengcheng Lv
 Senior Scientist
 (302) 998-1116
Business Contact
 Xin Zhang
Title: Director of Contracts&Pro
Phone: (302) 998-1116
Research Institution
In the current SBIR program, AlphaSense aimed at developing a novel, handheld, non-destructive sensor to evaluate the integrity of Naval Advanced Amorphous Coatings (NAAC) in real time. In phase I, we have proven the feasibility of using the cavity perturbation technique to detect different types of defects present in thermal-sprayed testing coupons. Specifically, we optimized the sensor probe design and implemented an alpha- version sensor hardware. We measured the perturbed cavity resonances by reference and defect coatings, and correlated the sensor data with the material microstructures. We also identified methods to further enhance the sensor performances in detecting defects present in the coating/substrate interface and substrate. Phase II will be focusing on the optimization of the sensor system to improve its performance in terms of sensitivity, dynamic range, and interrogation depth, and the implementation of a compact, portable, relatively inexpensive and field testable prototype.

* Information listed above is at the time of submission. *

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