TY - JOUR
T1 - Seebeck coefficient measurements of lithium isotopes
AU - Surla, V.
AU - Tung, M.
AU - Xu, W.
AU - Andruczyk, D.
AU - Neumann, M.
AU - Ruzic, D. N.
AU - Mansfield, D.
N1 - Funding Information:
This work is supported by DOE Contract DE-FG02-04ER54765. The authors would like to thank the machine shop in mechanical engineering department at the University of Illinois for their help with the extruding apparatus. The authors also thank undergraduates Sai Alluri, and Mayank Sirasale for their assistance. Authors also thank PPPL for loaning the Li-6 sample.
PY - 2011/8/1
Y1 - 2011/8/1
N2 - Lithium, owing to its many advantages, is of immense interest to the fusion community for its use as plasma facing component (PFC) material. Various experiments are under progress in the Center for Plasma Material Interactions (CPMI) at the University of Illinois at Urbana Champaign (UIUC) aimed at understanding the plasma-lithium interactions. In one such experiment called Solid/Liquid Lithium Divertor Experiment (SLiDE), it was recently observed that the flow of liquid lithium in the presence of magnetic fields is dominated by thermoelectric Magnetohydrodynamic (TEMHD) effects. To describe these results accurately, a knowledge of the thermoelectric properties of lithium is essential. For this purpose, an apparatus to measure the Seebeck coefficient of lithium was developed. Using this apparatus, the Seebeck coefficient of lithium as a function of temperature has been obtained. The Seebeck coefficient of lithium-7 is found to gradually increase from 11 μV/K to 25 μV/K, as the temperature is raised from 25 °C to 240 °C. These measurements are in good agreement with Kendall's thermoelectric measurements on natural Li. Furthermore, using the same apparatus, the thermoelectric curve of lithium-6 is obtained and for the first time are reported in this paper.
AB - Lithium, owing to its many advantages, is of immense interest to the fusion community for its use as plasma facing component (PFC) material. Various experiments are under progress in the Center for Plasma Material Interactions (CPMI) at the University of Illinois at Urbana Champaign (UIUC) aimed at understanding the plasma-lithium interactions. In one such experiment called Solid/Liquid Lithium Divertor Experiment (SLiDE), it was recently observed that the flow of liquid lithium in the presence of magnetic fields is dominated by thermoelectric Magnetohydrodynamic (TEMHD) effects. To describe these results accurately, a knowledge of the thermoelectric properties of lithium is essential. For this purpose, an apparatus to measure the Seebeck coefficient of lithium was developed. Using this apparatus, the Seebeck coefficient of lithium as a function of temperature has been obtained. The Seebeck coefficient of lithium-7 is found to gradually increase from 11 μV/K to 25 μV/K, as the temperature is raised from 25 °C to 240 °C. These measurements are in good agreement with Kendall's thermoelectric measurements on natural Li. Furthermore, using the same apparatus, the thermoelectric curve of lithium-6 is obtained and for the first time are reported in this paper.
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U2 - 10.1016/j.jnucmat.2011.05.019
DO - 10.1016/j.jnucmat.2011.05.019
M3 - Article
AN - SCOPUS:79960706648
SN - 0022-3115
VL - 415
SP - 18
EP - 22
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 1
ER -