Links

Tools

Export citation

Search in Google Scholar

The emissivity of W coatings deposited on carbon materials for fusion applications

Journal article published in 2017 by Ruset C., E. de la Cal, Perez von Thun Ch, E. de la Luna, J. L. de Pablos, P. C. de Vries, N. den Harder, G. J. van Rooij, S. Zoletnik, I. Zychor, Martin de Aguilera A., V. Zoita, Falie D., Grigore E., Gherendi M. and other authors.
This paper was not found in any repository; the policy of its publisher is unknown or unclear.
This paper was not found in any repository; the policy of its publisher is unknown or unclear.

Full text: Unavailable

Question mark in circle
Preprint: policy unknown
Question mark in circle
Postprint: policy unknown
Question mark in circle
Published version: policy unknown

Abstract

Fusion Engineering and Design Vol.114, 192-195 ; tTungsten coatings deposited on carbon materials such as carbon fiber composite (CFC) or fine graingraphite are currently used in fusion devices as amour for plasma facing components (PFC). More than4000 carbon tiles were W-coated by Combined Magnetron Sputtering and Ion Implantation technologyfor the ITER-like Wall at JET, ASDEX Upgrade and WEST tokamaks.The emissivity of W coatings is a key parameter required by protection systems of the W-coated PFC andalso by the diagnostic tools in order to get correct values of temperature and heat loading. The emissivityof tungsten is rather well known, but the literature data refer to bulk tungsten or tungsten foils and notto coatings deposited on carbon materials. The emissivity was measured at the wavelengths of 1.064 ; m.It was found that the structure of the substrate has a significant influence on the emissivity values.The temperature dependence of the emissivity in the range of 400.C.1200.C and the influence of theviewing angle were investigated as well. The results are given in a table for W coatings and for othermaterials of interest for fusion such as bulk W and bulk Be.