발간논문

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Vol.50, No.5, 369 ~ 375, 2012
Title
Fabrication of Nanostructured MoSi2-TaSi2 Composite by High-Frequency Induction Heating and its Mechanical Properties
고인용 In Yong Ko , 박나라 Na Ra Park , 손인진 In Jin Shon
Abstract
Nanopowders of Mo, Ta and Si were made by high-energy ball milling. A dense nanostructured MoSi2-TaSi2 composite was sintered by the high-frequency induction heated combustion method within 2 minutes from mechanically activated powder of Mo, Ta and Si. A highly dense MoSi2-TaSi2 composite was produced under simultaneous application of a 80 MPa pressure and the induced current. Mechanical properties and microstucture were investigated. The hardness and fracture toughness of the MoSi2-TaSi2 composite were 1200 kg/mm2 and 3.5 MPa.m1/2, respectively. The mechanical properties were higher than those of monolithic MoSi2.
Key Words
compounds, nanostructured materials, sintering, mechanical properties
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