About: Creep in ODS copper reinforced with alumina short fibres

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About: Creep in ODS copper reinforced with alumina short fibres - DRS copper. Goto Sponge NotDistinct Permalink

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

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Creep in copper dispersion strengthened with fine alumina particles (oxide dispersion strengthened (ODS) Cu) and reinforced with alumina short fibresůůa DRS Cu compositeůůis investigated in two temperature intervals, namely 673ů773 K, lower temperature interval (LTI) and 923ů1023 K, higher temperature interval (HTI). It is shown that in both intervals creep is associated with true threshold stresses decreasing with increasing temperature more strongly than the shear modulus of copper. The true threshold stress in the composite is higher than that in the composite matrix (i.e. ODS copper) by a factor , by which the flow stress in the matrix is reduced due to load transfer. The minimum creep strain rate is found to be dislocation core diffusion controlled in LTI and lattice diffusion controlled in HTI. High values of the apparent activation energies are fully explained in terms of the temperature dependence of the true threshold stress in LTI as well as in HTI. Also the values of the apparent stress exp Creep in copper dispersion strengthened with fine alumina particles (oxide dispersion strengthened (ODS) Cu) and reinforced with alumina short fibresůůa DRS Cu compositeůůis investigated in two temperature intervals, namely 673ů773 K, lower temperature interval (LTI) and 923ů1023 K, higher temperature interval (HTI). It is shown that in both intervals creep is associated with true threshold stresses decreasing with increasing temperature more strongly than the shear modulus of copper. The true threshold stress in the composite is higher than that in the composite matrix (i.e. ODS copper) by a factor , by which the flow stress in the matrix is reduced due to load transfer. The minimum creep strain rate is found to be dislocation core diffusion controlled in LTI and lattice diffusion controlled in HTI. High values of the apparent activation energies are fully explained in terms of the temperature dependence of the true threshold stress in LTI as well as in HTI. Also the values of the apparent stress exp (en)
Title	Creep in ODS copper reinforced with alumina short fibres - DRS copper. Creep in ODS copper reinforced with alumina short fibres - DRS copper. (en)
skos:prefLabel	Creep in ODS copper reinforced with alumina short fibres - DRS copper. Creep in ODS copper reinforced with alumina short fibres - DRS copper. (en)
skos:notation	RIV/68081723:_____/03:07033037!RIV/2004/AV0/A07004/N
http://linked.open.../vavai/riv/strany	267;276
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IBS2041001), Z(AV0Z2041904)
http://linked.open...iv/cisloPeriodika	1-2
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Čadek, Josef Kuchařová, Květa
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	602389
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/03:07033037
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Creep; ODS copper; Load transfer (en)
http://linked.open.../riv/klicoveSlovo	Load transfer ODS copper Creep
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[8B5CD4270FED]
http://linked.open...i/riv/nazevZdroje	Material Science and Engineering A. A
http://linked.open...in/vavai/riv/obor	JI
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Degradation of properties and lifetime assessment of engineering materials under mechanical loading
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	355
http://linked.open...iv/tvurceVysledku	Kuchařová, Květa Čadek, Josef Zhu, S. J.
http://linked.open...n/vavai/riv/zamer	Behavior and properties of metallic and non-metallic materials in relation to their structure, research on processes leading to degradation of material quality
issn	0921-5093
number of pages	10 (xsd:int)

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