Project Details
Abstract
Functionally Graded Materials (FGMs) have been reported having useful applications in
nuclear energies, sensors, energy industries, thermal barrier materials, wear barrier materials,
corrosion barrier materials. This three-year project includes fundamental studies on the
segregation mechanisms and the application of the segregation structure for functionally
graded material (FGM) fabrication. Previous segregation work focused on size-induced
segregation. Particle of different sizes, shapes and densities are manufactured in the project
using the mechanofusion method. Particles of different properties and different inter-particle
fluids are used to study the segregation phenomena in a rotating drum. The relationship
among the segregation mechanisms, the physical properties of the particles, the inter-particle
forces and particle motion trajectories are investigated in the first year. In the second year, the
continuum model developed in our laboratory will be used to model the particle segregation
flow in the rotating drum and the effected of the solids viscosities and friction on the particle
flow will be discussed. In the third year, the Cu-Al2O3 powder binary mixture is segregated in
a specially designed rotating drum. The density-induced/shape induced core-free segregated
bands are applied to fabricate Cu/Al2O3/Cu FGM Compliant Pad for the thermoelectric
module using the powder segregation metallurgy method. We hope to realize the underlying
the fundamental physics of segregation and assessment of the segregation technique
commercialization in this three-year project.
Project IDs
Project ID:PB9808-2390
External Project ID:NSC98-2221-E182-029
External Project ID:NSC98-2221-E182-029
Status | Finished |
---|---|
Effective start/end date | 01/08/09 → 31/07/10 |
Keywords
- functionally graded material
- powder transportation
- segregation
- thermoelectricmodule
- particle motion simulation
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