Fabrication of Cu-Based Functionally Graded Materials Dispersing Fine Sic Particles by a Centrifugal Mixed-Powder Method
Recently, a centrifugal mixed-powder method has been proposed as the processing technique of functionally graded material (FGM) containing fine solid-particles. In this study, Cu-based FGM containing SiC particles was fabricated using this technique. Although the density of SiC is smaller than that of Cu, these SiC particles are successfully distributed on surface of the cylindrical FGM. From this result, it is clear the movement of solid particle in powder mixture during casting is small. Therefore, the gradual distribution of the solid particle can be formed by the control of the volume fraction of solid-particles in powder mixture. Also, it is found that smaller SiC particle can improve the hardness on the surface of the FGMs effectively rather than larger one. In this study, the assignment of the centrifugal mixed-powder method was suggested from the obtained results.
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
H. Sato et al., "Fabrication of Cu-Based Functionally Graded Materials Dispersing Fine Sic Particles by a Centrifugal Mixed-Powder Method", Materials Science Forum, Vols. 638-642, pp. 2160-2165, 2010