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Rapid consolidation of nanocrystalline 3Ni-Al2O3 composite from mechanically synthesized powders by high frequency induction heated sintering

Authors
Park, Na-Ra; Ko, In-Yong; Doh, Jung-Mann; Kong, Woo-Yeon; Yoon, Jin-Kook; Shon, In-Jin
Issue Date
2010-03
Publisher
ELSEVIER SCIENCE INC
Citation
MATERIALS CHARACTERIZATION, v.61, no.3, pp.277 - 282
Abstract
Nanopowders of Ni and Al2O3 were synthesized from 3NiO and 2Al powders by high energy ball milling. Nanocrystalline Al2O3 reinforced composite was consolidated by high frequency induction heated sintering method within 2min from mechanically synthesized powders of Al2O3 and 3Ni. The relative density of the composite was 96%. The average hardness and fracture toughness values obtained were 645 kg/mm(2) and 6.3 MPa m(1/2), respectively. (C) 2009 Elsevier Inc. All rights reserved.
Keywords
FRACTURE-TOUGHNESS; HARD MATERIALS; WC; SYSTEM; ZRO2; FRACTURE-TOUGHNESS; HARD MATERIALS; WC; SYSTEM; ZRO2; Rapid sintering; Composite; Nanophase; Mechanical properties; Ni-Al2O3
ISSN
1044-5803
URI
https://pubs.kist.re.kr/handle/201004/131697
DOI
10.1016/j.matchar.2009.12.001
Appears in Collections:
KIST Article > 2010
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