Journal
METALS AND MATERIALS INTERNATIONAL
Volume 17, Issue 5, Pages 737-741Publisher
KOREAN INST METALS MATERIALS
DOI: 10.1007/s12540-011-1007-1
Keywords
sintering; composites; nanostuctured materials; mechanical properties; powder processing
Funding
- Korea Institute of Geoscience and Mineral Resources
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Nano-powders of Ti3Al and 2Al(2)O(3) were synthesized from 3TiO(2) and 5Al powders by high energy ball milling. Nanocrystalline Al2O3 reinforced composite was consolidated by high frequency induction heated sintering within 2 minutes from mechanochemically synthesized powders of 2Al(2)O(3) and Ti3Al. The relative density of the composite was 99.5%. The average hardness and fracture toughness were 1340 kg/mm(2) and 8 MPa.m(1/2), respectively.
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