Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4747
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dc.contributorDepartment of Electronic and Information Engineering-
dc.creatorSemenov, AA-
dc.creatorWoo, CH-
dc.date.accessioned2014-12-11T08:27:24Z-
dc.date.available2014-12-11T08:27:24Z-
dc.identifier.issn1098-0121-
dc.identifier.urihttp://hdl.handle.net/10397/4747-
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsPhysical Review B © 2005 The American Physical Society. The Journal's web site is located at http://prb.aps.org/en_US
dc.subjectSpatial summationen_US
dc.subjectDensity functional theoryen_US
dc.subjectElectronic sensoren_US
dc.subjectIrradiationen_US
dc.subjectNonlinear systemen_US
dc.subjectReactor cascadeen_US
dc.subjectStructure analysisen_US
dc.titleSpatial ordering of primary defects at elevated temperaturesen_US
dc.typeJournal/Magazine Articleen_US
dc.description.otherinformationAuthor name used in this publication: C. H. Wooen_US
dc.identifier.spage1-
dc.identifier.epage14-
dc.identifier.volume71-
dc.identifier.issue5-
dc.identifier.doi10.1103/PhysRevB.71.054109-
dcterms.abstractWe consider the microstructure evolution of a nonequilibrium system of primary defects, in which mobile point defects, vacancy loops, and sessile interstitial clusters are continuously produced by cascade-damage irradiation. It is shown that in a fully annealed metal, a spatially homogeneous microstructure may become unstable if the yield of vacancy clusters in collision cascades is sufficiently low. Unlike cases studied in the literature, in which sessile interstitial clusters are not produced, we found that the instability condition can only be satisfied for a finite period of time, the duration of which depends on the density of the network dislocation. Spatial heterogeneity starts to form from a homogeneous vacancy loop population, leading to the eventual accumulation of almost all vacancy clusters within very sharp walls. The spatial distribution of interstitial clusters, on the other hand, is relatively homogeneous, simply following the spatial variations of the net interstitial flux. The spatial heterogeneity develops with the growth of some concentration peaks and the disappearance of others. As a result, the surviving peaks form an increasingly well-defined periodic structure. Nevertheless, as the total sink density of interstitial clusters and loops becomes sufficiently large, the periodic structure disappears, and spatial homogeneity of damage microstructure eventually returns.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationPhysical review. B, Condensed matter and materials physics, 1 Feb. 2005 v. 71, no. 5, 054109, p. 1-14-
dcterms.isPartOfPhysical review. B, Condensed matter and materials physics-
dcterms.issued2005-02-01-
dc.identifier.isiWOS:000228013400033-
dc.identifier.scopus2-s2.0-15744397820-
dc.identifier.eissn1550-235X-
dc.identifier.rosgroupidr21869-
dc.description.ros2004-2005 > Academic research: refereed > Publication in refereed journal-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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