Abstract
To ensure that the necessary bond strength at fiber/matrix interfaces is attained during the manufacture of a carbon-aluminum composite such as that investigated in this work, the degree of chemical reaction between the components must be strictly controlled, the optimum amount of the reaction product (Al4C3) being 2–3%. For matrices of other compositions and fibers of other types, the optimum Al4C3 content may be different. A bond at a fiber/matrix interface forms mainly as a result of “mechanical” joining of the components by carbide phase particles, which leads to the appearance at this interface of numerous micro-channels capable of acting as paths of mass (e.g., water) transport into the main volume of material.
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