Electrophoretic forming of functionally-graded materials

摘要: Electrophoretic deposition (EPD) is a colloidal forming process where electrically charged particles are deposited onto an oppositely-charged electrode from electrostatically stabilized suspension by the application of dc electric field. It cheap and facile technique to fabricate complicated ceramic shapes. EPD very effective method synthesize ceramic/ceramic metal/ceramic composites, eg.; dispersed, laminar, fibre reinforced, functionally graded materials (FGM) etc. By it possible step FGMs continuous profile FGMs. The compositional FGM can be controlled current density, second component flow rate, concentration Step Al{sub 2}O{sub 3}/YSZ 3}/MoSi{sub 2}, 3}/Ni YSZ/Ni fabrication reported herein. microstructures produced were characterized optical/electron microscopy micro-indentation was used quantify Vicker`s hardness fracture toughness variation across sections.