Abstract
An alumina-Tungsten Functionally Gradient Material (FGM) was obtained by Centrifugal Molding Technique (CMT). It is found that the mixture of two kinds of sub-micro powers is unsuitable to fabricate the FGM cylinder by CMT, though there is large difference in density between two constitutes. The use of mixture of metal particles with different size is particularly useful to get the continuous graduation of the FGM cylinder. Adjusting the mixture ratio of metals with different particle sizes can control the graduations along the radial direction. The hoop residual stresses distributed from tensile on the inner surface to compressive on the outer surface due to the gradual material properties of the alumina-tungsten FGM cylinder.
