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@article{Le:2019:10.1007/s10765-019-2532-2,
author = {Le, Brun N and Markides, CN},
doi = {10.1007/s10765-019-2532-2},
journal = {INTERNATIONAL JOURNAL OF THERMOPHYSICS},
title = {A Galinstan-Filled Capillary Probe for Thermal Conductivity Measurements and Its Application to Molten Eutectic KNO3-NaNO3-NaNO2 (HTS) up to 700K (vol 36, 3222, 2015)},
url = {http://dx.doi.org/10.1007/s10765-019-2532-2},
volume = {40},
year = {2019}
}

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TY  - JOUR
AB  - The successful measurement of the thermal conductivity of molten salts is a challenging undertaking due to the electrically conducting and possibly also aggressive nature of the materials, as well as the elevated temperatures at which these data are required. For accurate and reproducible measurements, it is important to develop a suitable experimental apparatus and methodology. In this study, we explore a modified version of the transient hot-wire method, which employs a molten-metal-filled capillary in order to circumvent some of the issues encountered in previous studies. Specifically, by using a novel flexible U-shaped quartz-capillary, filled with a eutectic mixture of gallium, indium and tin, commercially known as Galinstan, we proceed to measure the thermal conductivity of molten eutectic KNO3–NaNO3–NaNO2–NaNO2. The new probe is demonstrated as being able to measure the thermal conductivity of this molten salt, which is found to range from 0.48 W⋅m−1⋅K−1 at 500 K to   0.47 W⋅m−1⋅K−1 at close to 700 K, with an overall expanded uncertainty (95 % confidence) of 3.1 %. The quartz is found to retain its electrically insulating properties and no current leakage is detected in the sample over the investigated temperature range. The thermal conductivity data reported in the present study are also used to elucidate a partial disagreement found in the literature for this material.
AU  - Le,Brun N
AU  - Markides,CN
DO  - 10.1007/s10765-019-2532-2
PY  - 2019///
SN  - 0195-928X
TI  - A Galinstan-Filled Capillary Probe for Thermal Conductivity Measurements and Its Application to Molten Eutectic KNO3-NaNO3-NaNO2 (HTS) up to 700K (vol 36, 3222, 2015)
T2  - INTERNATIONAL JOURNAL OF THERMOPHYSICS
UR  - http://dx.doi.org/10.1007/s10765-019-2532-2
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000473058000001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
VL  - 40
ER  -

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