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Article: A model for manufacture of nano-sized smart materials free from impurities

TitleA model for manufacture of nano-sized smart materials free from impurities
Authors
Issue Date2004
PublisherIndian Academy of Sciences. The Journal's web site is located at http://www.currentscience.ac.in/
Citation
Current Science, 2004, v. 86 n. 8, p. 1076-1091 How to Cite?
AbstractThe importance of nano-sized smart materials in structural engineering, biomedical engineering, and in military applications is discussed. It is shown that the solidification of poorly conducting alloys involved in the manufacture of these materials gives rise to surface and convective instabilities. Different types of surface and convective instabilities are briefly discussed. These instabilities produce a mushy zone regarded as dendrites of nano-sized crystals. These dendrites arising from instabilities are regarded as impurities. To manufacture nano-sized smart materials free from impurities, it is essential to control both surface and convective instabilities. We discuss here briefly, different types of convective and surface instabilities in a poorly conducting fluid. We also discuss different mechanisms of control of these instabilities. Different analytical and numerical techniques used to investigate these instabilities under different boundary conditions are discussed. In this review the moment method is explained to find the condition for the onset of convection, and porous lining is used to suppress the growth rate of surface instability. This is useful in the manufacture of nano-sized smart materials free from impurities. Different methods to obtain the required basic equations and the corresponding boundary conditions are briefly discussed.
DescriptionReview
Persistent Identifierhttp://hdl.handle.net/10722/76103
ISSN
2015 Impact Factor: 0.967
2015 SCImago Journal Rankings: 0.325
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorRudraiah, Nen_HK
dc.contributor.authorNg, COen_HK
dc.date.accessioned2010-09-06T07:17:40Z-
dc.date.available2010-09-06T07:17:40Z-
dc.date.issued2004en_HK
dc.identifier.citationCurrent Science, 2004, v. 86 n. 8, p. 1076-1091en_HK
dc.identifier.issn0011-3891en_HK
dc.identifier.urihttp://hdl.handle.net/10722/76103-
dc.descriptionReview-
dc.description.abstractThe importance of nano-sized smart materials in structural engineering, biomedical engineering, and in military applications is discussed. It is shown that the solidification of poorly conducting alloys involved in the manufacture of these materials gives rise to surface and convective instabilities. Different types of surface and convective instabilities are briefly discussed. These instabilities produce a mushy zone regarded as dendrites of nano-sized crystals. These dendrites arising from instabilities are regarded as impurities. To manufacture nano-sized smart materials free from impurities, it is essential to control both surface and convective instabilities. We discuss here briefly, different types of convective and surface instabilities in a poorly conducting fluid. We also discuss different mechanisms of control of these instabilities. Different analytical and numerical techniques used to investigate these instabilities under different boundary conditions are discussed. In this review the moment method is explained to find the condition for the onset of convection, and porous lining is used to suppress the growth rate of surface instability. This is useful in the manufacture of nano-sized smart materials free from impurities. Different methods to obtain the required basic equations and the corresponding boundary conditions are briefly discussed.en_HK
dc.languageengen_HK
dc.publisherIndian Academy of Sciences. The Journal's web site is located at http://www.currentscience.ac.in/en_HK
dc.relation.ispartofCurrent Scienceen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleA model for manufacture of nano-sized smart materials free from impuritiesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0011-3891&volume=86&issue=8&spage=1076&epage=1091&date=2004&atitle=A+model+for+manufacture+of+nano-sized+smart+materials+free+from+impuritiesen_HK
dc.identifier.emailNg, CO:cong@hku.hken_HK
dc.identifier.authorityNg, CO=rp00224en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.scopuseid_2-s2.0-4444353007en_HK
dc.identifier.hkuros90373en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-4444353007&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume86en_HK
dc.identifier.issue8en_HK
dc.identifier.spage1076en_HK
dc.identifier.epage1091en_HK
dc.identifier.isiWOS:000221230600018-
dc.publisher.placeIndiaen_HK
dc.identifier.scopusauthoridRudraiah, N=7005972595en_HK
dc.identifier.scopusauthoridNg, CO=7401705594en_HK
dc.customcontrol.immutablecsl 150708-

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