This title appears in the Scientific Report :
2010
Please use the identifier:
http://dx.doi.org/10.1007/s10765-010-0857-y in citations.
Inter-laboratory test on thermophysical properties of the ITER grade heat sink material copper-chromium-zirconium
Inter-laboratory test on thermophysical properties of the ITER grade heat sink material copper-chromium-zirconium
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 f...
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Personal Name(s): | Pintsuk, G. |
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Blumm, J. / Hohenauer, W. / Hula, R.C. / Koppitz, T. / Lindig, S. / Pitzer, D. / Rohde, M. / Schoderböck, P. / Schubert, T. / Tietz, F. / Wouters, O. | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IEK-1 Zentralinstitut für Technologie; ZAT Werkstoffstruktur und -eigenschaften; IEK-2 |
Published in: | International journal of thermophysics, 31 (2010) |
Imprint: |
New York, NY
Springer Science + Business Media B.V.
2010
|
DOI: |
10.1007/s10765-010-0857-y |
Document Type: |
Journal Article |
Research Program: |
Fusion |
Series Title: |
International Journal of Thermophysics
31 |
Subject (ZB): | |
Publikationsportal JuSER |
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. |