Journal Article

PreJuSER-12699

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Inter-laboratory test on thermophysical properties of the ITER grade heat sink material copper-chromium-zirconium

Pintsuk, G.FZJ* ; Blumm, J. ; Hohenauer, W. ; Hula, R. C. ; Koppitz, T.FZJ* ; Lindig, S.FZJ* ; Pitzer, D.FZJ* ; Rohde, M. ; Schoderböck, P. ; Schubert, T. ; Tietz, F.FZJ* ; Wouters, O.

2010
Springer Science + Business Media B.V. New York, NY

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Please use a persistent id in citations: doi:10.1007/s10765-010-0857-y

Abstract: Copper-chromium-zirconium (CuCrZr) is a commercially available, precipitation-strengthened alloy. The combination of its good thermal conductivity and mechanical strength at low and moderate temperatures made it of interest for use as a heat sink material in high heat flux components in actual and future fusion facilities. Its only drawback is the microstructural modification and thereby, particularly, the loss of mechanical strength at temperatures above 500 A degrees C. This limits the allowable operational temperatures and the temperature range in which cyclic and reproducible measurements of thermophysical properties can be performed. These difficulties and the international significance of the material makes it an excellent object of study for an interlaboratory test of several independent European thermophysical laboratories, in which the quality and the comparability of thermophysical measurements were determined. The main outcome (result, conclusion) of this study is that the different laboratory data are in good agreement providing maximum deviations of similar to 5 % for dilatometry, similar to 2 % for DSC measurements, and up to 10 % for thermal-diffusivity measurements. In addition to the determined high reproducibility within the particular thermophysical laboratories, it was found that the average thermal conductivity of CuCrZr produced in a certain compositional range is identical within a small-scatter band.

Keyword(s): J ; Calorimetry (auto) ; CuCrZr (auto) ; Dilatometry (auto) ; ITER (auto) ; Laser flash (auto)

Note: This study has been performed within the framework of the Integrated European Project "ExtreMat" (Contract NMP-CT-2004-500253) with financial support by the European Community. It only reflects the view of the authors, and the European Community is not liable for any use of the information contained therein.

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Contributing Institute(s):

1. Werkstoffsynthese und Herstellverfahren (IEK-1)
2. Werkstoffstruktur und -eigenschaften (IEK-2)
3. Zentralabteilung Technologie (ZAT)

Research Program(s):

1. Fusion (P13)

Appears in the scientific report 2010

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Database coverage:
JCR ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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