Carbon-Carbon Joining Technology for Space Structures

A plan is proposed to investigate high temperature brazing of carbon-carbon composites using polymer derived ceramic materials as a braze material. This Phase I program will demonstrate the viability of this approach. Experimental work will investigate the interlaminar properties of laminated carbon-carbo bond specimens. Experimental variables shall include types of polymers, fillers for the bonding material, and pressure during the bonding cycle. Mechanical testing will be used to compare process variables to each other and to unbonded carbon-carbon. Microanalysis of process materials will document characteristics of the bond zone.