HIGHLY REFLECTING LIQUID FILMS

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$49,098.00
Award Year:
1984
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
1028
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Physical Sciences Inc.
Research Park, Box 3100, Andover, MA, 01810
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
ALAN GELB
(617) 475-9030
Business Contact:
() -
Research Institution:
n/a
Abstract
THE CONCEPT OF THIN LIQUID FILM MEDIATED PROTECTION FROM LASER IRRADIATION WILL BE APPLIED TO HEAT SHIELD MATERIALS. THE CONCEPT EMPLOYS A THIN METAL FILM WHICH BECOMES LIQUID DURING IRRADIATION. THE FILM IS DESIGNED TO BE HIGHLY REFLECTING TO LASER IRRADIATION WITHOUT INTERFERING WITH THE VAPORIZATION THERMODYNAMICS OF THE HEAT SHIELD. THIS CONCEPT PROVIDES LASER HARDENING IN AN EXO ENVIRONMENT. AT ENDO ALTITUDES, THE THIN FILM WILL NOT INTERFERE WITH THE HEAT SHIELD FUNCTION. A COMBINED THEORETICAL-EXPERIMENTAL PROGRAM IS PROPOSED. THE THEORETICAL EFFORT WILL DETERMINE THE RANGES OF LASER PARAMETERS FOR WHICH HIGH REFLECTIVITY WILL BE MAINTAINED AND IDENTIFY CADIDATE COATING MATERIALS. CANDIDATE MATERIALS WILL BE SCREENED FOR HIGH REFLECTIVITY, AND FOR STABLE LIQUID PHASE OVER REQUIRED TEMPERATURE RANGES. METAL ALLOYS WILL BE GIVEN PARTICULAR ATTENTION AS CANDIDATE MATERIALS. CONSIDERATION WILL BE GIVEN TO NUCLEAR HARDENING POTENTIAL. THE EXPERIMENTAL PORTION OF THIS PROGRAM WILL TEST CHOSEN CANDIDATE MATERIALS FOR HIGH REFLECTIVITY AND FILM STABILITY UNDER SIMULATED LASER INTERACTION. MEASUREMENTS WILL BE PERFORMED BYE-BEAM HEATING. FILM STABILITY, HEAT OF VAPORIZATION AND OPTICAL REFLECTIVITY WILL BE DETERMINED IN ORDER TO DETERMINE Q*.

* information listed above is at the time of submission.

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