Kunihiko Mimura1, Osamu Okuno2 and Ishi Miura2
1Research Center, Kanebo Ltd., Osaka
Carbon fiber/Al composites were fabricated by vacuum hot pressing and their mechanical properties were measured. In order to improve bonding and wetting in the carbon fiber/Al interface and to avoid the formation of aluminium carbide, chemical deposition of copper was applied to carbon fiber surfaces. Moreover, to align carbon fibers in Al matrix, pre-preg sheets of plasma sprayed monolayer carbon fiber/Al foils were used. The results were as follows:
(1) The tensile strength of composites containing 10∼15 vol% carbon fiber was close to the theoretical values (23∼32 kg/mm2), but that for 20∼40 vol% carbon fiber was 50∼70% of these values (35∼48 kg/mm2).
(2) Damage of carbon fibers seems not to be observed by electron probe microanalysis, microscopic examination and scanning electron microscopic examination.
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