Y. Watanabe et al., CONTROL OF COMPOSITION GRADIENT IN A METAL-CERAMIC FUNCTIONALLY GRADED MATERIAL MANUFACTURED BY THE CENTRIFUGAL METHOD, Composites. Part A, Applied science and manufacturing, 29(5-6), 1998, pp. 595-601
The motion of ceramic particles in a molten metal of a viscous liquid
under a centrifugal force is numerically modeled to study the formatio
n process of composition gradients. The simulated results are in good
agreement with those of experiments that used a plaster-corundum model
functionally graded material (FGM). It is found that greater gradient
s are obtained in cases of thinner thickness, greater applied centrifu
gal forces and smaller mesh size particles. In addition, the processin
g of mixed mesh size particles is examined. We conclude that the use o
f a mixture of particle sizes is particularly useful to control the co
mposition of metal-ceramic FGMs manufactured by the centrifugal method
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