Conformal Sensor Window

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$600,000.00
Award Year:
2010
Program:
SBIR
Phase:
Phase II
Contract:
N68936-09-C-0072
Award Id:
87345
Agency Tracking Number:
N073-181-0370
Solicitation Year:
n/a
Solicitation Topic Code:
NAVY 07-181
Solicitation Number:
n/a
Small Business Information
7900 West 78th St., Suite 300, Minneapolis, MN, 55439
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
938966090
Principal Investigator:
Troy Marusich
Chief Technical Officer
(952) 832-5515
troym@thirdwavesys.com
Business Contact:
Renee Brownlee
Finance Administrator
(952) 832-5515
renee.brownlee@thirdwavesys.com
Research Institute:
n/a
Abstract
Ceramic transmission sensor windows offer advantages over axisymmetric surfaces in the ability to reduce drag and weight. Materials of interest include spinel, polycrystal alumina, and AlON. However, the description, fabrication and metrology of these surfaces can be costly, or even impossible. Fabrication of these surfaces is difficult, since they are not axisymmetric and can have varying local radii of curvature, rendering grinding, lapping and polishing of these surfaces untenable. A method to overcome these difficulties in fabrication is to apply ductile mode machining (DMM) to eliminate grinding, lapping and polishing. DMM has been successfully applied to spinel, AlON and sapphire in Phase I. Through the use of physics-based modeling, DMM conditions can be identified where material removal results in ductile chip formation, damage free surfaces and excellent surface finish. This SBIR activity extends the technology of DMM to transmission optical materials enabled by physics-based modeling technology. We will further develop and enhance its modeling capability for application to spinel workpieces. In Phase II we will demonstrate DMM of a spinel lens and perform the requisite metrology.

* information listed above is at the time of submission.

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