Aluminum Composites Reinforced With Graphite: a Densification and Mechanical Response Study
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Aluminum Composites Reinforced With Graphite: a Densification and Mechanical Response Study J.M. Mendoza-Duarte1, F.C. Robles-Hernandez2, I. Estrada-Guel1, C. Carreño-Gallardo1 and R. Martínez-Sánchez1 1 Centro de Investigación en Materiales Avanzados, CIMAV, Miguel de Cervantes 120, Chihuahua, Chih. 31136, México. 2 Department of Mechanical Engineering Technology, University of Houston, Houston, TX 77204-4020, U.S.A. Email: [email protected]
ABSTRACT Aluminum-Graphite composites were prepared from pure aluminum and natural graphite the mixture was processed by the mechanical milling (MM) technique. The microstructural characteristics of prepared composites were investigated by X-rays diffraction (XRD), optical microscopy (OM) and scanning electron microscopy (SEM). The mechanical response of samples was evaluated by compression and hardness tests. To obtain solid samples from milled powders we used an alternative sintering process based on induction heating. Although this method is frequently used for refractory ceramics fabrication (>1500°C), it has not been properly evaluated for materials processing at low temperature (1500°C), this valuable technique has not been properly explored for low melting point materials as Al (
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