Mechanochemcial synthesis and rapid sintering of nanocrystalline AlCr2-2Al2O3 composite and its mechanical properties

Title
Mechanochemcial synthesis and rapid sintering of nanocrystalline AlCr2-2Al2O3 composite and its mechanical properties
Authors
윤진국손인진
Keywords
Sintering; Hardness; Nanocrystalline; Fracture toughness; Synthesis
Issue Date
2016-08
Publisher
Journal of ceramic processing research
Citation
VOL 17, NO 8-880
Abstract
Nanopowders of AlCr2 and Al2O3 were synthesized during high energy ball milling. Densely nanostructured AlCr2-2Al2O3 composite was consolidated by high-frequency induction heated sintering within 2 min from milled powders. Highly dense AlCr2-2Al2O3 composite with relative density of up to 96% was produced under application of a 80 MPa pressure and the induced current. The fracture toughness of a AlCr2-Al2O3 composite in this study is similar to that of previous study, while the hardness of a AlCr2-Al2O3 composite in this study is better than that of previous study due to the grain refinement. The fracture toughness of AlCr2-2Al2O3 composite is higher than that of pure Al2O3. The microstructure and mechanical properties were investigated using FE-SEM with EDS and Vickers hardness tester
URI
http://pubs.kist.re.kr/handle/123456789/64718
ISSN
1229-9162
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE