Net Shape Fabrication of Novel Projectile Materials Using Rapid Combustion Driven Ultra-High Pressure Powder Compaction (CDC) Manufacturing

Award Information
Agency:
Department of Defense
Branch
n/a
Amount:
$79,980.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
N00167-11-P-0015
Award Id:
n/a
Agency Tracking Number:
N102-149-0678
Solicitation Year:
2010
Solicitation Topic Code:
N102-149
Solicitation Number:
2010.2
Small Business Information
9441 Innovation Drive, Manassas, VA, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
809250405
Principal Investigator:
Karthik Nagarathnam
Senior Materials Scientis
(703) 369-5552
karthik@utronkinetics.com
Business Contact:
Mary Kossan
Contracts Administrator
(703) 369-5552
maryk@utroninc.com
Research Institution:
Stub




Abstract
The major objectives of the Phase I effort will be focused on CDC high pressure compaction/fabrication, post-processing, testing and materials performance/baseline preliminary material modeling of the kinetic behavior of the projectile material compositions based on select geometry and CDC materials properties. CDC projectile/warhead fragment materials include tungsten alloys, Hf/Al, W/Al, Al/Boron, Hf/Zn, Zr/Zn, Zr/Al, or Ta/Al, Mo/Al, and select materials with boron, molybdenum oxide and/or sulfur including some polymer matrix composites indicating the potential for process flexibility. Select geometrical shapes such as 1 inch diameter cylinders/disks with 1 inch thickness will be fabricated using the available 300 ton CDC press and existing die/punch assemblies for initial exploration. Compositions will be optimized in consultation with OSD sponsors to obtain varying densities closer (e.g., 7 g/cc or higher). Appropriate experimental process optimization at much higher compaction pressures (e.g., 50 to 150 tsi) will be developed to obtain projectiles of controlled porosities as an integral part of Phase I, Phase I option and Phase II. Key CDC process optimization, suitable as-pressed higher density parts and /or any other less thermal processing sintering/heat treatment responses, net shaped part quality, microstructural/microchemistry properties, and mechanical properties such as hardness and other strength durability properties at room temperature will be evaluated in Phase I. In Phase II, scaling up, materials/manufacturing of advanced projectiles of desirable geometries for reactive fragment warhead components such as multiple-pressing of several pellets, projectile assemblies, spheroidal shaped warheads etc will be planned and the developed CDC parts after optimum processing conditions. One of the potential collaborators in the proposed SBIR is ATK.

* information listed above is at the time of submission.

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