Enhanced Mechanical Properties of Nanostructured 2.25CoAl-Al2O3 Composite Sintered by Pulsed Current Activated Heating
MATERIALS TRANSACTIONS(2016)
摘要
The nanopowders of CoAl and Al2O3 were synthesized from Co3O4 and Al powders using high energy ball milling. The nanostructured 2.25CoAl-Al2O3 composite from the milled powder was consolidated within two min by the pulsed current activated sintering. The mechanical properties and microstucture of the nanostructured 2.25CoAl-Al2O3 was investigated from the view points of using Vickers hardness measurement, X-ray diffraction analysis and FE-SEM observation.
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关键词
composite,nanostructure,hardness,fracture toughness,sintering
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