A solid rocket propellant grain having rocket propellant and a membrane in contact with the rocket propellant. The membrane includes a highly heat conductive pattern which affects the propellant burning rate through localized conductive heat transfer from the combustion zone and into the uncombusted propellant. Different geometries for the thermally conductive pattern produce different combustion results.

The invention provides mechanically activated metal fuels for energetic material applications. An exemplary embodiment involves mechanically treating micrometer-sized particles of at least one metal with particles of at least one fluorocarbon to form composite particles containing the at least one metal and the at least one fluorocarbon.

The invention provides mechanically activated metal fuels for energetic material applications. An exemplary embodiment involves mechanically treating micrometer-sized particles of at least one metal with particles of at least one fluorocarbon to form composite particles containing the at least one metal and the at least one fluorocarbon.