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Nanometer-sized porous Ti-based metallic glass

Authors
Jayaraj, J.; Park, B. J.; Kim, D. H.; Kim, W. T.; Fleury, E.
Issue Date
2006-12
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
SCRIPTA MATERIALIA, v.55, no.11, pp.1063 - 1066
Abstract
A porous Ti-based metallic glass has been fabricated by applying the principle of dealloying to the Y20Ti36Al24Co20 two-phase amorphous alloy. The initial microstructure of the two-phase glassy alloy consisted of Ti43.3Y3.7Al15.3Co37.7 and Y38.8Ti12.8Al37.1Co11.3 amorphous phases forming an interconnected structure. To fabricate the porous structure, the Y-rich phase has been selectively dissolved from the alloy using both chemical and electrochemical treatments in 0.1 M HNO3 solution. The glassy nature of the porous Ti-based alloy was confirmed by transmission electron microscopy analyses. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Keywords
ALLOYS; FABRICATION; MICROSTRUCTURE; DISSOLUTION; EVOLUTION; ALUMINUM; BEHAVIOR; LIQUID; LAYERS; FOAMS; ALLOYS; FABRICATION; MICROSTRUCTURE; DISSOLUTION; EVOLUTION; ALUMINUM; BEHAVIOR; LIQUID; LAYERS; FOAMS; metallic glass; titanium; porous material; corrosion; dealloying
ISSN
1359-6462
URI
https://pubs.kist.re.kr/handle/201004/134879
DOI
10.1016/j.scriptamat.2006.07.054
Appears in Collections:
KIST Article > 2006
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