Fabrication of nanopowder and consolidation of nanocrystalline 5Ni0.6Fe0.4-Al2O3 composite by rapid sintering

Nano-powders of 5Ni 0.6 Fe 0.4 and Al 2 O 3 were synthesized from 3NiO and 2FeAl powders by high energy ball milling. Nanocrystalline 5Ni 0.6 Fe 0.4 -Al 2 O 3 composite was consolidated by pulsed current activated sintering method within 2 min from mechanically alloyed powders of Al 2 O 3 and 5Ni 0....

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Bibliographic Details
Published in:Metals and materials international 2009, 15(5), , pp.765-769
Main Authors: Park, Na-Ra, Choe, Myeong-Ku, Park, Je-Shin, Kim, Wonbaek, Shon, In-Jin
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Engineering Thermodynamics
Heat and Mass Transfer
Machines
Magnetic Materials
Magnetism
Manufacturing
Materials Science
Metallic Materials
Processes
Solid Mechanics
재료공학
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Summary:Nano-powders of 5Ni 0.6 Fe 0.4 and Al 2 O 3 were synthesized from 3NiO and 2FeAl powders by high energy ball milling. Nanocrystalline 5Ni 0.6 Fe 0.4 -Al 2 O 3 composite was consolidated by pulsed current activated sintering method within 2 min from mechanically alloyed powders of Al 2 O 3 and 5Ni 0.6 Fe 0.4 . The average hardness and fracture toughness values obtained were 990 kg/mm 2 and 7.5 MPa·m 1/2 , respectively.
ISSN:1598-9623
2005-4149
DOI:10.1007/s12540-009-0765-x