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Improved Tungsten Penetrators

Award Information

Department of Defense
Award ID:
Program Year/Program:
1993 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Advanced Technologies/Laboratories Intl
Advanced Technologies/Lab Intl 20010 Century Blvd, Ste 500 Germantown, MD 20874 0111
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Woman-Owned: Yes
Minority-Owned: Yes
HUBZone-Owned: No
Phase 1
Fiscal Year: 1993
Title: Improved Tungsten Penetrators
Agency / Branch: DOD / ARMY
Contract: N/A
Award Amount: $48,130.00


Kinetic energy penetrators are currently relied upon as a way to defeat enemy armor. Historically these penetrators have been composed of unanium or tungsten based alloys due to their high densities. In addition to density, the deformation behavior of the alloy determines it's performance. A penetrator whose tip mushrooms or fractures on impact is less effective than a penetrator that retains it's shape or has a tip that self sharpens. Although the densities of uranium and tungsten are similar, uranium alloys have generally exhibited deformation on impact that has resulted in better penetrator performance. The drawback with uranium alloys, however, is toxicity and cost. In this Phase I SBIR program, tungsten alloys will be processed in a variety of novel ways to improve their performance as penetrators. ATM proposes to produce large (>10 mm diameter) [100] oriented crystals of pure tungsten and W-Ni-Fe alloy rods with elongated and preferred orientation of the grains. The effect of rhenium additions will also be examined. X-ray diffraction, high rate compression testing, and optical microscopy will be used to assess the results.

Principal Investigator:

Delwyn Cummings

Business Contact:

Small Business Information at Submission:

Advanced Technology Materials
7 Commerce Drive Danbury, CT 06810

Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No