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Article: Nano-alloys synthesized by controlled crystallization from supercooled atomic clusters of elements

TitleNano-alloys synthesized by controlled crystallization from supercooled atomic clusters of elements
Authors
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
Citation
Journal Of Materials Research, 2004, v. 19 n. 3, p. 780-785 How to Cite?
Abstract
Materials 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.
Persistent Identifierhttp://hdl.handle.net/10722/43056
ISSN
2013 Impact Factor: 1.815
2013 SCImago Journal Rankings: 0.888
References

 

Author Affiliations
  1. Nanjing University
  2. The University of Hong Kong
DC FieldValueLanguage
dc.contributor.authorMeng, XKen_HK
dc.contributor.authorNgan, AHWen_HK
dc.date.accessioned2007-03-23T04:37:47Z-
dc.date.available2007-03-23T04:37:47Z-
dc.date.issued2004en_HK
dc.identifier.citationJournal Of Materials Research, 2004, v. 19 n. 3, p. 780-785en_HK
dc.identifier.issn0884-2914en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43056-
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.en_HK
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.languageengen_HK
dc.publisherMaterials Research Society. The Journal's web site is located at http://www.mrs.org/publications/jmren_HK
dc.relation.ispartofJournal of Materials Researchen_HK
dc.rightsJournal of Materials Research. Copyright © Materials Research Society.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectEngineeringen_HK
dc.subjectEngineering mechanics and materials physicsen_HK
dc.titleNano-alloys synthesized by controlled crystallization from supercooled atomic clusters of elementsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0884-2914&volume=19&issue=3&spage=780&epage=785&date=2004&atitle=Nano-alloys+synthesized+by+controlled+crystallization+from+supercooled+atomic+clusters+of+elementsen_HK
dc.identifier.emailNgan, AHW:hwngan@hkucc.hku.hken_HK
dc.identifier.authorityNgan, AHW=rp00225en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1557/JMR.2004.0101en_HK
dc.identifier.scopuseid_2-s2.0-16544384906en_HK
dc.identifier.hkuros88666-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-16544384906&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume19en_HK
dc.identifier.issue3en_HK
dc.identifier.spage780en_HK
dc.identifier.epage785en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridMeng, XK=7401630110en_HK
dc.identifier.scopusauthoridNgan, AHW=7006827202en_HK

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