Add time:07/19/2019         Source:sciencedirect.com

In this work a textured diamond-reinforced copper-beryllium composite was produced and its tribological behavior was evaluated. In a first stage, a Cu–Be matrix was textured by laser and diamond particles were functionalized with a Cu–Sn–Ti eutectic alloy by mechanical alloying. The second stage consisted on the incorporation and consolidation of the functionalized diamond particles to the matrix by laser sintering. The results showed that despite some heterogeneity of the powders/matrix interface, the textured diamond-reinforced copper-beryllium materials exhibited a much better tribological performance than the unreinforced Cu–Be ones. Such behavior was attributed to the presence of diamond and formation of oxides, like TiO2, that act as solid lubricant. No graphitization was observed during laser sintering process.

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