HIGH TEMPERATURE COMPOSITE PROJECTILE BARREL

摘要

A composite projectile barrel is disclosed comprising a polymer matrix composite outer shell that accommodates higher temperature loading. In one embodiment, the invention comprises an outer shell fabricated from carbon fibers and polyimide resin having a glass transition temperature greater than 500° F. In another embodiment, the resin mixture includes a plurality of sizes of aluminum particles, between about 0.1 microns and 10.0 microns in diameter and of approximately spherical shape, as a thermal conductive additive.

主权项

1. A barrel for directing the path of a dischargeable projectile, comprising:
an inner liner defining an axial bore; and an outer shell surrounding and in direct contact with the inner liner, said outer shell fabricated from a polymer matrix composite (PMC), said PMC comprising fibers and a resin mixture, said resin mixture comprising a resin having a glass transition temperature greater than 500° F.