FABRICATION OF NON-SPHERICAL PARTICULATES

Award Information
Agency:
Department of Defense
Amount:
$498,700.00
Program:
SBIR
Contract:
N/A
Solitcitation Year:
N/A
Solicitation Number:
N/A
Branch:
Navy
Award Year:
1990
Phase:
Phase II
Agency Tracking Number:
5427
Solicitation Topic Code:
N/A
Small Business Information
Advanced Microsphere Products
2038 E Foothill Blvd, Pasadena, CA, 91107
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
N/A
Principal Investigator
 Manchium Chang
 (818) 584-9446
Business Contact
Phone: () -
Research Institution
N/A
Abstract
PARTICULATES OF VARIOUS SHAPES ARE USEFUL IN MANY AREAS OF INDUSTRY. SPECIFICALLY, SUCH PARTICULATES ARE NEEDED TO SIMULATE PLANKTONS IN OCEAN FOR USE IN WATER TUNNEL TESTS. WE PROPOSED TO FABRICATE THE NON-SPHERICAL PARTICULATES BY TWO METHODS: PHOTOLITHOGRAPHIC TECHNIQUES WILL BE USED TO PRODUCE PARTICULATES OF ROD, DISK, STAR, HEXAGONAL OR OTHER DISTINCT GEOMETRICAL SHAPES, AND CHEMICAL TECHNIQUES WILL BE USED TO PREPARE "BRISTLE BRUSH" SHAPED PARTICULATES. IN THE PHOTOLITHOGRAPHIC METHOD, A PHOTOMASK WITH PARTICULATE PATTERNS OF PROPER DIMENSION AND CONFIGURATION WILL BE FABRICATED AND BY USING PHOTORESIST AND PHOTOPROCESSES, AN ARRAY OF PARTICULATES WILL BE REPRODUCED ON AN APPROPRIATE SUBSTRATE. THESE PARTICLES CAN BE COLLECTED FROM THE SUBSTRATE BY ETCHING OR BY ULTRASONICATION. TO PRODUCE BRISTLE BRUSH PARTICULATES, THE IONIC INTERATION FORCES WILL BE USED. IF THE CENTER BODY OF THE BRISTLE BRUSH IS CHEMICALLY TREATED TO BE CATIONIC IN NATURE AND FIBER IS ANIONICALLY CHARGED, SIMPLE MIXING OF THESE TWO IONIC SPECIES WILL RESULT IN HAIRY PARTICULATES.

* information listed above is at the time of submission.

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