Mechanical synthesis and rapid consolidation of a nanocrystalline 5.33Fe0.37Cr0.16Al0.4Si0.07-Al2O3 composite by high-frequency induction heating

Title
Mechanical synthesis and rapid consolidation of a nanocrystalline 5.33Fe0.37Cr0.16Al0.4Si0.07-Al2O3 composite by high-frequency induction heating
Authors
손인진두송리고인용김태완도정만윤진국박상환
Keywords
Nanostructured materials; Sintering; Mechanical alloying; Mechanical properties; Composite materials
Issue Date
2011-03
Publisher
Ceramics international
Citation
VOL 37, NO 4, 1353-1357
Abstract
Nanopowders of 5.33Fe0.37Cr0.16Al0.4Si0.07 and Al2O3 were synthesized from Fe2O3, Cr, Si, and Al powders by high-energy ball milling. A high-density nanocrystalline 5.33Fe0.37Cr0.16Al0.4Si0.07–Al2O3 composite was consolidated by a high-frequency, induction-heated sintering (HFIHS) method within three minutes from mechanically synthesized powders of Al2O3 and 5.33Fe0.37Cr0.16Al0.4Si0.07. The advantage of this process is that it allows very quick densification to near theoretical density and prohibits grain growth in nano-structured materials. The average grain sizes of Al2O3 and 5.33Fe0.37Cr0.16Al0.4Si0.07 were 99 nm and 14 nm, respectively.
URI
http://pubs.kist.re.kr/handle/201004/39522
ISSN
0272-8842
Appears in Collections:
KIST Publication > Article
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