ULTRAHARD COATINGS ON METALS

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$677,749.00
Award Year:
1996
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
25771
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Materials Modification, Inc.
2929 Eskridge Road, P-1, Fairfax, VA, 22031
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr. T.s. Sudarshan
(703) 560-1371
Business Contact:
() -
Research Institution:
n/a
Abstract
Arc heater segments fabricated from oxygen free high conductivity copper (OFHC) need an effective means of dissipating high heat flux loads from the inner bore while maintaining electrically non-conducting surfaces. Smooth, ultrahard coatings that have good thermal conductivity and little or no electrical conductivity can protect these surfaces by preventing arc erosion. In this Phase I effort, Materials Modification Inc., (MMI) proposes several different approaches to address this requirement using cubic boron nitride and aluminum nitride coatings over OFHC surfaces. The coatings will be also exposed to elevated temperatures to ascertain their oxidation resistance and characterized extensively using standard optical, SEM/EDAX hardness techniques. After preliminary screening in Phase I, we will proceed in Phase II to deposit coating on arc heater segments for actual testing in an operating system at AEDC.

* information listed above is at the time of submission.

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