Method of improving the burn rate and ignitability of aluminium fuel particles and aluminum fuel so modified
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United States of America Patent
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Aug 31, 2010
Grant Date -
May 18, 2006
app pub date -
Nov 28, 2003
filing date -
Nov 28, 2002
priority date (Note) -
Expired
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Abstract
A method of improving the burn rate and ignitability of aluminium fuel particles, and a thus modified aluminium fuel for use in propellant and explosive compositions and pyrotechnic charges. Aluminium fuel particles are treated with an aqueous solution of hydrofluoric acid and a fluoride and/or complex fluoride salt of an alkali metal and/or alkaline earth metal to form a surface layer of a fluoride complex bound to the aluminium fuel particle.
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