Lead-Free Nanoscale Metal/Oxidizer Composite for Electric Primers

Abstract

A lead-free electric primer composition including a mixture of at least one metal having nanometer-sized particles with at least one oxidizer having nanometer-sized particles producing a metal(s)-oxidizer(s) nanocomposite, wherein the oxidizer(s) is present in an effective amount to substantially oxidize the metal(s), at least one gas generating material mixed with the metal(s)-oxidizer(s) nanocomposite producing a metal(s)-oxidizer(s)-gas generator(s) composition, at least one binder, the metal(s)-oxidizer(s)-gas generating composition is coated with the binder, and at least one conductive material.

1 - 6 . (canceled) 
     
     
         7 . A lead-free percussion primer composition comprising:
 a mixture of at least one metal powder of nanometer-sized particles and at least one oxidizer powder of nanometer-sized particles defining a metal-oxidizer nanocomposite;   said oxidizer present in an amount sufficient to substantially oxidize said metal;   said at least one oxidizer is a metal molybdate;   said metal of said metal molybdate is selected from the group consisting of Ag 2 , Sr, Ca, and (NH 4 ) 2 ;   at least one particulate gas generating material mixed with said metal-oxidizer nanocomposite;   said gas generating material is bis-aminotetrazolyl-tetrazine;   at least one binder, substantially coating said metal, said oxidizer, and said gas generating material particles; and   at least one conductive material.   
     
     
         8 . The composition according to  claim 7 , wherein said oxidizer includes metal nitrate represented by the formula M-(NO 3 ) x  where x is an integer equal to or greater than 1 and M is selected from the group consisting of Li, Na, K, Sr, and Ca. 
     
     
         9 . The composition according to  claim 7 , wherein said oxidizer includes metal perchlorate represented by the formula M-(ClO 4 ) x  where x is an integer equal to or greater than 1 and M is selected from the group consisting of Li, Na, K, Sr, and Ca. 
     
     
         10 .- 14 . (canceled) 
     
     
         15 . The composition according to  claim 7 , wherein said gas generating material is at least one of the group consisting of Guanidinium Bitetrazole (GBt), Bisguanidinium Azotetrazole (GAZT), Bis-tetrazole (BT), Triaminoguanidinum Nitrate (TAGN), and 5-Aminotetazole (5-AT). 
     
     
         16 .- 27 . (canceled)