Lead-free precussion primer mixes based on metastable interstitial composite (MIC) technology
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsGeorge P. Dixon, Joe A. Martin, Don Thompson
Life of this patent
Estimating the term…
Abstract
A lead-free percussion primer composition and a percussion cup containing e 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 .mu.m or less, more preferably a particle size of from about 200-500 angstroms.
Claims11
A lead-free percussion primer composition comprising:
- a mixture of aluminum powder and molybdenum trioxide powder,
- wherein said aluminum powder and said molybdenum trioxide have a particle size of about 0.1 .mu.m or less, and said aluminum powder has an outer coating of aluminum oxide.
A lead-free percussion primer composition comprising particulate aluminum and polytetrafluoroethylene having a particle size of 0.1 .mu.m or less, wherein said particulate aluminum has a coating thereon of aluminum oxide.
Dependencies are inferred from the claim text.