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Thermal properties of Nb2SnC
Journal article   Open access   Peer reviewed

Thermal properties of Nb2SnC

M W Barsoum, T El-Raghy, W D Porter, H Wang, J C Ho and S Chakraborty
Journal of applied physics, v 88(11), pp 6313-6316
01 Dec 2000
url
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8867394View
Accepted (AM)Open Access (License Unspecified) Open

Abstract

Physical Sciences Physics Physics, Applied Science & Technology
In this article we report on the thermal properties of the ternary carbide Nb2SnC. Its heat capacity, c(p), is 75 J/mol K at ambient temperatures and increases to approximate to 115 J/mol K at 1300 K. Analysis of c(p) measurements in the 4-15 K temperature range yields a Debye temperature of 324 K and a density of states at the Fermi level of 2.66 (eV unit cell)(-1). At room temperature, the thermal conductivity is 17 W/m K and it increases to approximate to 31 W/m K at 1500 K. At temperatures greater than 600 K, roughly 85% of the heat is transported by electronic defects (i.e., electrons and/or holes). The thermal properties-of Nb2SnC are quite comparable to those of near-stoichiometric NbCx. (C) 2000 American Institute of Physics. [S0021-8979(00)02822-X].

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Domestic collaboration
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Physics, Applied
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