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
Awards Year: 2011
Solitcitation Year: 2009
Solitcitation Topic Code: SB093-002
Solitcitation Number: 2009.3
Small Business Information
AlphaSense, Inc.
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
 pengcheng@alphasense.net
Business Contact
 Xin Zhang
Title: Director of Contracts&Pro
Phone: (302) 998-1116
Email: xin@alphasense.net
Research Institution
 Stub
Abstract
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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