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COATED TUNGSTEN POWDER

Award Information

Agency:
Department of Defense
Branch:
Army
Award ID:
4539
Program Year/Program:
1988 / SBIR
Agency Tracking Number:
4539
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Ultramet
12173 Montague Street Pacoima, CA 91331-2210
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1988
Title: COATED TUNGSTEN POWDER
Agency / Branch: DOD / ARMY
Contract: N/A
Award Amount: $500,000.00
 

Abstract:

KINETIC ENERGY WEAPONS EMPLOY TUNGSTEN PROJECTILES. FOR MAXIMUM EFFECTIVENESS THE TUNGSTEN MUST POSSES HIGH DENSITY, STRENGTH AND DUCTILITY. LIQUID PHASE SINTERING OF TUNGSTEN POWDER IN A MATRIX OF IRON AND NICKEL POWDER HAS BEEN EMPLOYED FOR THIS PURPOSE. PROBLEMS STILL EXIST. AS DENSITY APPROACHES THEORETICAL, BOTH DUCTILITY AND TENSILE STRENGTH ARE SACRIFICED. THE REASON SEEMS TO BE THAT AS THE MATRIX COMPONENT APPROACHES ZERO, A HIGH DEGREE OF CONTINGUITY OCCURS BETWEEN GRAINS, NON-UNIFORMITY OF THE MATRIX DEVELOPS DUE TO FLUCTUATIONS, AND DELETERIOUS IMPURITIES LIKE O(2), S AND P SEGREGATE ON GRAIN BOUNDARIES. WE PROPOSE TO MINIMIZE THESE ADVERSE EFFECTS BY COATING THE TUNGSTEN POWDER WITH THE MATRIX CONSTITUENTS FE AND NI BY MEANS OF CHEMICAL VAPOR DEPOSITION (CVD). THE EXTREME PURITY LEVELS AND UNIFORMITY OF DISTRIBUTION ATTAINABLE BY CVD CAN ALLEVIATE ALL THREE DELETRIOUS EFFECTS. THE INNOVATIVE PROCESS HEREIN DESCRIBED WILL ALSO PERMIT GRAIN SIZE CONTROL.

Principal Investigator:

Dr John T Harding
8188990236

Business Contact:

Small Business Information at Submission:

Ultramet
12173 Montague St Pacoima, CA 91331

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No