A Study of the Segregation Mechanism from Particle Interactions and the Assessment of the Segregation Technique Commercialization

  • Kuo, Hsiu-Po (PI)

Project: National Science and Technology CouncilNational Science and Technology Council Academic Grants

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
StatusFinished
Effective start/end date01/08/0931/07/10

Keywords

  • functionally graded material
  • powder transportation
  • segregation
  • thermoelectricmodule
  • particle motion simulation

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