2014•International Journal of Self-Propagating High-Temperature SynthesisRequires access

Cu-TiO2 composite as fabricated by SHS method

Sh. Sh. Javaherian, Hossein Aghajani, Pourya Mehdizadeh

Abstract

The feasibility of Cu-TiO 2 composite production by SHS method was surveyed. Different weight percentages of CuO and Ti powders were mechanically activated, mixed, and compacted under different pressure. SHS reactions were performed in a stainless steel reactor. Combustion products were characterized by SEM, XRD, DTA, and EDS map analysis. The reaction was optimized using the HSC software results. The dispersion of reinforcing particles and the effect of compaction pressure on the hardness of produced composites were investigated. The maximum hardness value and the best dispersion of a second phase were exhibited by the specimens with an overly stoichiometric weight percentage of Ti. The principles of the process optimization were discussed.

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Key concepts: Materials science, Compaction, Composite number, Dispersion (optics), Combustion, Composite material, Phase (matter), Stoichiometry