Methods of Increasing Thermal Conductivity of Plasma Sprayed Tungsten-Based Coatings

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

Methods of Increasing Thermal Conductivity of Plasma Sprayed Tungsten-Based Coatings

Popis výsledku v původním jazyce

Tungsten is the main candidate material for the armor of plasma facing components for ITER and future fusion devices. Plasma spraying is an alternative method for manufacturing tungsten-based coatings, including composites and graded layers, having a number of advantageous features. On the other hand, the main limitation to application of these coatings on high heat flux components, is their low thermal conductivity, originating in the layered structure. This paper is focused on four methods of improving the coatings? thermal conductivity. First method consists in modification of the basic spraying parameters, which have a direct influence on the coating structure and therefore properties. The other three methods involve post-processing of the coatings: molten copper infiltration, laser remelting and densification by HIPping. The latter encompasses also tungsten-copper composites of various compositions. Experimental results, including structural and thermal characterization,

Název v anglickém jazyce

Methods of Increasing Thermal Conductivity of Plasma Sprayed Tungsten-Based Coatings

Popis výsledku anglicky

Tungsten is the main candidate material for the armor of plasma facing components for ITER and future fusion devices. Plasma spraying is an alternative method for manufacturing tungsten-based coatings, including composites and graded layers, having a number of advantageous features. On the other hand, the main limitation to application of these coatings on high heat flux components, is their low thermal conductivity, originating in the layered structure. This paper is focused on four methods of improving the coatings? thermal conductivity. First method consists in modification of the basic spraying parameters, which have a direct influence on the coating structure and therefore properties. The other three methods involve post-processing of the coatings: molten copper infiltration, laser remelting and densification by HIPping. The latter encompasses also tungsten-copper composites of various compositions. Experimental results, including structural and thermal characterization,

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

Advanced Materials Research

ISSN

1022-6680

e-ISSN

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Svazek periodika

59

Číslo periodika v rámci svazku

-

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

5

Strana od-do

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Kód UT WoS článku

000265407900013

EID výsledku v databázi Scopus

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