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Aero-Thermal Modeling for Spinel Asphere Development

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: HQ0006-04-C-7099
Agency Tracking Number: B045-002-0258
Amount: $99,921.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: MDA04-T002
Solicitation Number: N/A
Solicitation Year: 2004
Award Year: 2004
Award Start Date (Proposal Award Date): 2004-08-30
Award End Date (Contract End Date): 2005-02-28
Small Business Information
133 Defense Highway, Suite 212
Annapolis, MD 21401
United States
DUNS: 153908801
HUBZone Owned: No
Woman Owned: Yes
Socially and Economically Disadvantaged: No
Principal Investigator
 Anthony DiGiovanni
 Spinel Program Manager
 (410) 987-1656
Business Contact
 Sharon Fehrenbacher
Title: CEO
Phone: (410) 224-3710
Research Institution
 Johns Hopkins University
 David Terry
1110 Johns Hopkins Road
Laurel, MD 20723
United States

 (443) 778-5034
 Nonprofit College or University

While aspherical dome geometries provide enhanced aerodynamics versus hemispherical domes, they have been problematic to manufacture due to inadequate finishing techniques. However, recent advances in finishing technology have made their production possible. Magnesium aluminate spinel is a hard, transparent material, which is currently being scaled up to produce hemispherical transparent domes to support the Joint Common Missile. Development of aspherical spinel domes is also underway, but only recently has finishing technology been capable of dealing with these complicated geometries. Therefore, little analytical data exists as to the performance of spinel domes during hypersonic flight. In order to produce an aspherical, spinel dome design that mitigates the effects of aero-thermal heating during hypersonic flight, Technology Assessment and Transfer and Johns Hopkins University Advanced Physics Laboratory will optically characterize spinel at elevated temperatures, model the aerodynamic performance of three dome geometries, and produce two aspherical, transparent spinel dome blanks.

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

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