Advanced NDE for SiC Optics Using Single Crystal Piezoelectric Composite Transducers with Broad Bandwidth and High Sensitivity

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-07-M-5237
Agency Tracking Number: F071-142-0536
Amount: $99,955.00
Phase: Phase I
Program: SBIR
Awards Year: 2007
Solicitation Year: 2007
Solicitation Topic Code: AF071-142
Solicitation Number: 2007.1
Small Business Information
2820 East College Avenue, State College, PA, 16801
DUNS: 782683007
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Xiaoning Jiang
 Senior Scientist
 (814) 238-7485
Business Contact
 Wesley Hackenberger
Title: President
Phone: (814) 238-7485
Research Institution
TRS is pleased to propose an advanced NDE system for SiC mirror defect and stress measurement using single crystal piezoelectric composite transducers with broad bandwidth and high sensitivity. The broadband HF transducers are expected to contribute to high spatial resolution in both the lateral and axial directions as well as deeper penetration depth in NDE imaging, which will greatly benefit in-situ detection of SiC mirror SD, SSD and trapped internal stress measurements. The goal of this program is to develop a NDE imaging tool for in-situ SiC mirror subsurface damage detection with minimum detectable lateral dimension < 10 microns and minimum detectable axial dimension <100 nm, and with detection depth ranging from sub-micron to > 10 cm. Internal stress measurement using single crystal composite transducers will be studied and compared with the conventional transducers used in LCR stress measurements. In Phase II a high frequency transducer array and LCR stress measurement probe will be integrated for in-situ NDE for SiC optics.

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

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