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Statements

Subject Item
n2:RIV%2F61389021%3A_____%2F03%3A00022135%21RIV06-AV0-61389021
rdf:type
n16:Vysledek skos:Concept
dcterms:description
The joining of tungsten and copper and the ongoing search for commercially viable production techniques is one of the challenging issues in the field of composite materials. Our concept deals with functionally graded structures of W and Cu, which exhibit extreme differences in material properties, but are free from mutual chemical interactions. Due to the mismatch of thermal expansion and Young’s moduli, the joining of these two materials can result in high residual and thermal stresses at the interface, ultimately reducing component lifetime. The reason why this material combination is of essential importance is its ability to withstand high temperatures on the tungsten side and to remove big quantities of heat on the copper side. Possible applications are heat sinks, contact materials of power switches and components in space, military and nuclear fusion devices. The present study focuses on Low Pressure Plasma Spraying (LPPS, 120 mbar) and Water Stabilized Plasma Spraying (WSPS). Spojování wolframu a mědi je náročný technologický úkol, díky výrazně rozdílným vlastnostem a vzájemné nerozpustnosti. Plazmové stříkání je perspektivní technologie, která umožňuje snížení napětí na rozhraní pomocí gradovaných vrstev (s proměnlivým složením). Vlastnosti nástřiků vyrobených metodou LPPS a WSP byly studovány a porovnávány, rovněž byl sledován vliv složení. The joining of tungsten and copper and the ongoing search for commercially viable production techniques is one of the challenging issues in the field of composite materials. Our concept deals with functionally graded structures of W and Cu, which exhibit extreme differences in material properties, but are free from mutual chemical interactions. Due to the mismatch of thermal expansion and Young’s moduli, the joining of these two materials can result in high residual and thermal stresses at the interface, ultimately reducing component lifetime. The reason why this material combination is of essential importance is its ability to withstand high temperatures on the tungsten side and to remove big quantities of heat on the copper side. Possible applications are heat sinks, contact materials of power switches and components in space, military and nuclear fusion devices. The present study focuses on Low Pressure Plasma Spraying (LPPS, 120 mbar) and Water Stabilized Plasma Spraying (WSPS).
dcterms:title
Mikrostruktura a mechanické vlastnosti plazmově stříkaných gradovaných kompozitů W+Cu pro extrémní teplotní podmínky Microstructural and mechanical properties of plasma sprayed W/Cu-graded composites for extreme thermal conditions Microstructural and mechanical properties of plasma sprayed W/Cu-graded composites for extreme thermal conditions
skos:prefLabel
Microstructural and mechanical properties of plasma sprayed W/Cu-graded composites for extreme thermal conditions Microstructural and mechanical properties of plasma sprayed W/Cu-graded composites for extreme thermal conditions Mikrostruktura a mechanické vlastnosti plazmově stříkaných gradovaných kompozitů W+Cu pro extrémní teplotní podmínky
skos:notation
RIV/61389021:_____/03:00022135!RIV06-AV0-61389021
n3:strany
6.107;6.118
n3:aktivita
n12:Z
n3:aktivity
Z(AV0Z2043910)
n3:dodaniDat
n10:2006
n3:domaciTvurceVysledku
n18:6343767
n3:druhVysledku
n4:D
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
615434
n3:idVysledku
RIV/61389021:_____/03:00022135
n3:jazykVysledku
n7:eng
n3:klicovaSlova
tungsten; plasma spraying; copper; composite
n3:klicoveSlovo
n14:plasma%20spraying n14:copper n14:tungsten n14:composite
n3:kontrolniKodProRIV
[802976C44EC2]
n3:mistoKonaniAkce
Las Vegas, Nevada
n3:mistoVydani
Princeton, NJ, US
n3:nazevZdroje
Proceedings 2003 World Congress on Powder Metallurgy & Particulate Materials
n3:obor
n5:JI
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
7
n3:rokUplatneniVysledku
n10:2003
n3:tvurceVysledku
Pintsuk, G. Döring, J.-E. Matějíček, Jiří Hohenauer, W. Tietz, F. Linke, J. Smid, I.
n3:typAkce
n19:WRD
n3:zahajeniAkce
2003-06-08+02:00
n3:zamer
n13:AV0Z2043910
s:numberOfPages
12
n17:hasPublisher
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