Results 291 to 300 of about 3,683,208 (347)

Thermal Conductivity. Part II.: Thermal Conductivity of Badly-conducting Solids

Proceedings of the Physical Society of London, 1914
The thermal conductivities of a selection of non-metals at 20°C. and 100°C. have been determined by precisely the same method, and in the main the same apparatus as was recently employed by the author in the determination of the "Thermal conductivity of some of the rarer metals and alloys." The substances treated were in the form of accurately turned ...
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Thermal conductivity of superconductors

Physica, 1953
where ~ and /5 are due to the scattering of electrons by phonons and by impurities respectively. As the metal becomes superconductive its thermal conductivity K8 falls below the value of the normal phase Kn which is given by (1) as 1/W. This decrease in conductivity is caused by the gradual disappearance from the thermal distribution of the free ...
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Thermal Conductivity of Liquids

Physical Review, 1941
At present it may be said that there is no satisfactory theory of the mechanism of thermal conduction in liquids, although it is recognized' that the mechanism of thermal conduction in liquids must be different from that in a gas. The mechanism of thermal conduction outlined here refers to the melting point and leads us to an expres-sion for the ...
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Minimising the Thermal Conductivity

2009
It is shown that the lattice conductivity can be reduced by the formation of a solid solution. The theory of scattering of phonons by point defects is presented. It is shown that boundary scattering of phonons may be significant even when their free path length is small.
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The thermal conductivity of a ferrodielectric

Journal of Physics and Chemistry of Solids, 1966
Abstract Kubo's thermal conductivity formula is simplified, and a number of expressions are obtained for the conductivity involving a single integral of the time correlation function of the thermal currents. These currents are worked out for a ferromagnetic spin system and it is shown that they are zero for the Ising model which must therefore have a
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Ultralow thermal conductivity and high thermoelectric figure of merit in SnSe crystals

Nature, 2014
Li-dong Zhao, S. Lo, Yongsheng Zhang, Hui Sun, G. Tan, C. Uher, C. Wolverton, V. Dravid, M. Kanatzidis   +8 more
semanticscholar   +1 more source

Superior thermal conductivity of single-layer graphene.

Nano letters (Print), 2008
A. Balandin, Suchismita Ghosh, W. Bao, I. Calizo, D. Teweldebrhan, F. Miao, C. N. Lau   +6 more
semanticscholar   +1 more source

Thermal conductivity of superconductors

Physica, 1962
An attempt is made to explain the thermal conducting decrease in the superconducting phase when the transition temperature is in the lattice scattering region, i.e., if the dominant scatterers are lattice vibrations. Superconducting attenuation arising in the irreversible flow of energy from the acoustical phonons to the thermal phonons is considered. (
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Strategies for enhancing thermal conductivity of polymer-based thermal interface materials: a review

Journal of Materials Science, 2020
Haoqi Ma, Bin Gao, Meiyu Wang, Zhenye Yuan, Jingbo Shen, Jingqi Zhao, Yakai Feng   +6 more
semanticscholar   +1 more source

Thermal conductivity enhancement on phase change materials for thermal energy storage: A review

, 2020
Shaofei Wu, Y. Ting, K. Zihan, Weiguo Pan   +3 more
semanticscholar   +1 more source