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STUDY ON POROSITY OF SINTERED METALLIC POROUS MATERIAL

Xiaoqiang Li

Abstract

The reason of porosity formation,effect of pressure on porosity and linking of pores in metallic porous material were studied.Several groups of samples were made on moulding press and geometrical model of porosity formation was established to explain the mechanism.The porosity of sintered samples was observed on microscope,calculated and measured.The linking of pores was proved by measured permeability.The results showed that the samples prepared have high porosity and the pores are linked with each other quite frequently.

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Key concepts: Porosity, Materials science, Composite material, Metal, Permeability (electromagnetism), Sintering, Metallurgy, Chemistry