Vliv podávání prášku na mechanické vlastnosti plazmových nástřiků mědi a wolframu

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Powder Injection on Mechanical Properties of Plasma Sprayed Copper and Tungsten Coatings

Popis výsledku v původním jazyce

Nuclear fusion is considered to be a promising energy source for the future. One of the biggest problems which has to be solved is the development of inner wall material of the fusion reactor. For the inner parts which will be exposed to high levels of heat and particle flux, a combination of tungsten layer on copper parts was proposed. Tungsten is refractory material resistant to high heat and particle flux, while copper can efficiently remove heat due to its high thermal conductivity. But high stressconcentration on the materials interface can occur due to the thermal expansion coefficient (CTE) mismatch of both materials when exposed to high temperatures. Therefore plasma spraying is promising technology for this application. One of the critical plasma spraying parameters is the carrier gas flow which has to be optimized to ensure proper particle trajectory along the centerline of the plasma flame. Obtained results are currently being used for the development of FGM coatings.

Název v anglickém jazyce

Influence of Powder Injection on Mechanical Properties of Plasma Sprayed Copper and Tungsten Coatings

Popis výsledku anglicky

Nuclear fusion is considered to be a promising energy source for the future. One of the biggest problems which has to be solved is the development of inner wall material of the fusion reactor. For the inner parts which will be exposed to high levels of heat and particle flux, a combination of tungsten layer on copper parts was proposed. Tungsten is refractory material resistant to high heat and particle flux, while copper can efficiently remove heat due to its high thermal conductivity. But high stressconcentration on the materials interface can occur due to the thermal expansion coefficient (CTE) mismatch of both materials when exposed to high temperatures. Therefore plasma spraying is promising technology for this application. One of the critical plasma spraying parameters is the carrier gas flow which has to be optimized to ensure proper particle trajectory along the centerline of the plasma flame. Obtained results are currently being used for the development of FGM coatings.

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of Workshop 2008

ISBN

978-80-01-04016-4

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

CTU Publishing House

Místo vydání

Prague

Místo konání akce

Praha

Datum konání akce

18. 2. 2008

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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