Porous propellant grain and method of making same

Details Porous propellant grain and method of making same Porous propellant grain and method of making same

1987-06-15

1988-07-19

Lechert, Jr., Stephen J.

Explosive and thermic compositions or charges

Structure or arrangement of component or product

149 35, 149 61, 149 77, 1491096, 264 31, 102291, 102292, 280728, 280741, C06B 4500

Patent

active

047582871

ABSTRACT:
A process for preparing a porous propellant grain which comprises blending at least two combustible materials to form a homogeneous mixture, adding a predetermined amount of a liquid dispersant to said mixture to form a slurry, and flash drying the slurry in order to form a porous, single grain propellant having a greatly increased burning surface. A single grain propellant is produced having a flat, torroidal shape with a central cylindrical core and honeycombed with a plurality of porous channels extending entirely through the grain to increase the burning surface thereof.

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