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Article: Nano-alloys synthesized by controlled crystallization from supercooled atomic clusters of elements
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TitleNano-alloys synthesized by controlled crystallization from supercooled atomic clusters of elements
 
AuthorsMeng, XK1
Ngan, AHW2
 
KeywordsEngineering
Engineering mechanics and materials physics
 
Issue Date2004
 
PublisherMaterials Research Society. The Journal's web site is located at http://www.mrs.org/publications/jmr
 
CitationJournal Of Materials Research, 2004, v. 19 n. 3, p. 780-785 [How to Cite?]
DOI: http://dx.doi.org/10.1557/JMR.2004.0101
 
AbstractMaterials in nanocrystalline forms are well known to possess unusual and interesting properties when compared to the bulk conditions, and these open up an exciting range of novel applications. The key step involved in the systematic exploitation of nanocrystals for real applications lies in the development of reliable methods to synthesize nanocrystals of arbitrary chemical compositions in a range of crystal sizes. In particular, metallic alloy nanocrystals pose a special challenge. We demonstrate that nano-to-micro-sized crystals of intermetallic nickel-aluminide (Ni3Al) ranging from approximately 3 nm to over 100 nm in size can be synthesized by co-sputtering from elemental Ni and Al onto unheated, incompatible organic substrates, followed by controlled postdeposition heat treatment at mild temperatures. The crystal size of approximately 3 nm here is the smallest ever reported for monolithic ordered Ni3Al.
 
ISSN0884-2914
2013 Impact Factor: 1.815
2013 SCImago Journal Rankings: 0.888
 
DOIhttp://dx.doi.org/10.1557/JMR.2004.0101
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorMeng, XK
 
dc.contributor.authorNgan, AHW
 
dc.date.accessioned2007-03-23T04:37:47Z
 
dc.date.available2007-03-23T04:37:47Z
 
dc.date.issued2004
 
dc.description.abstractMaterials in nanocrystalline forms are well known to possess unusual and interesting properties when compared to the bulk conditions, and these open up an exciting range of novel applications. The key step involved in the systematic exploitation of nanocrystals for real applications lies in the development of reliable methods to synthesize nanocrystals of arbitrary chemical compositions in a range of crystal sizes. In particular, metallic alloy nanocrystals pose a special challenge. We demonstrate that nano-to-micro-sized crystals of intermetallic nickel-aluminide (Ni3Al) ranging from approximately 3 nm to over 100 nm in size can be synthesized by co-sputtering from elemental Ni and Al onto unheated, incompatible organic substrates, followed by controlled postdeposition heat treatment at mild temperatures. The crystal size of approximately 3 nm here is the smallest ever reported for monolithic ordered Ni3Al.
 
dc.description.naturepublished_or_final_version
 
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dc.format.extent40924 bytes
 
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dc.identifier.citationJournal Of Materials Research, 2004, v. 19 n. 3, p. 780-785 [How to Cite?]
DOI: http://dx.doi.org/10.1557/JMR.2004.0101
 
dc.identifier.doihttp://dx.doi.org/10.1557/JMR.2004.0101
 
dc.identifier.epage785
 
dc.identifier.hkuros88666
 
dc.identifier.issn0884-2914
2013 Impact Factor: 1.815
2013 SCImago Journal Rankings: 0.888
 
dc.identifier.issue3
 
dc.identifier.openurl
 
dc.identifier.scopuseid_2-s2.0-16544384906
 
dc.identifier.spage780
 
dc.identifier.urihttp://hdl.handle.net/10722/43056
 
dc.identifier.volume19
 
dc.languageeng
 
dc.publisherMaterials Research Society. The Journal's web site is located at http://www.mrs.org/publications/jmr
 
dc.publisher.placeUnited States
 
dc.relation.ispartofJournal of Materials Research
 
dc.relation.referencesReferences in Scopus
 
dc.rightsJournal of Materials Research. Copyright © Materials Research Society.
 
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License
 
dc.subjectEngineering
 
dc.subjectEngineering mechanics and materials physics
 
dc.titleNano-alloys synthesized by controlled crystallization from supercooled atomic clusters of elements
 
dc.typeArticle
 
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Author Affiliations
  1. Nanjing University
  2. The University of Hong Kong