About: Vacancy clusters in ultra fine grained metals prepared by severe plastic deformation

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://iopscience.iop.org/1742-6596/443/1/012008
Description	Severe plastic deformation of metals introduces not only dislocations, but also a high concentration of vacancies. In the present work we employed positron lifetime spectroscopy for investigation of deformation-induced vacancies in ultra fine grained metals prepared by high pressure torsion. It was found that in all metals studied deformation-induced vacancies agglomerate into small vacancy clusters. Experimental positron lifetime results were combined with ab-initio theoretical calculations of positron parameters for vacancy clusters of various sizes. This new approach described in this paper enables to determine the size distribution of vacancy clusters. Severe plastic deformation of metals introduces not only dislocations, but also a high concentration of vacancies. In the present work we employed positron lifetime spectroscopy for investigation of deformation-induced vacancies in ultra fine grained metals prepared by high pressure torsion. It was found that in all metals studied deformation-induced vacancies agglomerate into small vacancy clusters. Experimental positron lifetime results were combined with ab-initio theoretical calculations of positron parameters for vacancy clusters of various sizes. This new approach described in this paper enables to determine the size distribution of vacancy clusters. (en)
Title	Vacancy clusters in ultra fine grained metals prepared by severe plastic deformation Vacancy clusters in ultra fine grained metals prepared by severe plastic deformation (en)
skos:prefLabel	Vacancy clusters in ultra fine grained metals prepared by severe plastic deformation Vacancy clusters in ultra fine grained metals prepared by severe plastic deformation (en)
skos:notation	RIV/00216208:11320/13:10189250!RIV14-GA0-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	I P S
http://linked.open...avai/riv/aktivity	I, P(GBP108/12/G043), S
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Melikhova, Oksana Procházka, Ivan Čížek, Jakub Barnovská, Zuzana
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	113482
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/13:10189250
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	dislocations; spectroscopy; positron; high-pressure torsion (en)
http://linked.open.../riv/klicoveSlovo	dislocations spectroscopy positron high-pressure torsion
http://linked.open...ontrolniKodProRIV	[3CCF0BBE8C9B]
http://linked.open...v/mistoKonaniAkce	Bristol
http://linked.open...i/riv/mistoVydani	Neuveden
http://linked.open...i/riv/nazevZdroje	Journal of Physics: Conference Series
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Interface controlled properties of micro/nanocrystalline materials for advanced structural applications, biodegradable implants and hydrogen storage
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Melikhova, Oksana Procházka, Ivan Čížek, Jakub Barnovská, Zuzana Islamgaliev, R. K.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	000321739400008
http://linked.open.../riv/zahajeniAkce	2013-08-19 (xsd:date)
issn	1742-6588
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/1742-6596/443/1/012008
http://purl.org/ne...btex#hasPublisher	IOP PUBLISHING LTD
http://localhost/t...ganizacniJednotka	11320

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