Lead-Free Percussion Primer Mixes Based on Metastable Interstitial Composite (MIC) Technology
Patent, Filed 19 Feb 97, patented 10 Feb 98
DEPARTMENT OF THE NAVY WASHINGTON DC
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A lead-free percussion primer composition and a percussion cup containing the composition. The lead-free percussion primer composition is comprised of a mixture of about 45 wt aluminum powder having an outer coating of aluminum oxide and molybdenum trioxide powder or a mixture of about 50 wt aluminum powder having an outer coating of aluminum oxide and polytetrafluoroethylene powder. The aluminum powder, molybdenum trioxide powder and polytetrafluoroethylene powder has a particle size of 0.1 microns or less, more preferably a particle size of from about 200-500 angstroms.
- Ammunition and Explosives