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
2011 Impact Factor: 1.434
2011 SCImago Journal Rankings: 0.130
DOIhttp://dx.doi.org/10.1557/JMR.2004.0101
ReferencesReferences in Scopus
DC Field
Value
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
dc.format.extent319699 bytes
dc.format.extent40924 bytes
dc.format.extent310 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
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
2011 Impact Factor: 1.434
2011 SCImago Journal Rankings: 0.130
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
Author Affiliations
  1. Nanjing University
  2. The University of Hong Kong