Abstract
To understand the effect of the catalyzer in phenolic matrix on the structure and performance of carbon/carbon composite, the three elements of boron, iron and chromium are used to modify carbon matrix resin. The results show that the introduction of the catalyzer changes the degree of graphitization, density and interface bonding conditions of the sample. The electric conductivity, mechanical property and tribological properties of carbon/carbon composite are closely related to matrix carbon containing the catalyzer. This is specifically represented as that the graphitizing by catalyzer can significantly reduce the resistivity of composites; graphitizing by catalyzer improves the fracture toughness of composites but will reduce the flexural strength; appropriate catalyzer can improve the friction performance of carbon/carbon composite.
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