Results 261 to 270 of about 108,570 (312)

Heat conduction in solids: Temperature-dependent thermal conductivity

International Journal of Heat and Mass Transfer, 1968
Abstract A variational formulation is derived and applied to problems in heat conduction through solids. This formulation has, as its Euler-Lagrange equation, the general heat equation where the thermal conductivity, density, and specific heat may be temperature-dependent.
Hays, D. F., Curd, H. N.
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Temperature-dependent thermal conductivity of porous silicon

Journal of Physics D: Applied Physics, 1997
The thermal conductivity of electrochemically etched porous silicon (PS) layers was determined over a wide temperature range (T = 35 - 320 K) using the dynamic technique. Both the doping level of the silicon wafers (p and ) and the porosity P of the porous layers (P = 64 - 89%) were varied.
G Gesele, J Linsmeier, V Drach, J Fricke, R Arens-Fischer   +4 more
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Temperature-dependence of the thermal conductivity of polymers

Journal of Engineering Physics, 1973
A method is proposed for the generalization of test data pertaining to the thermal conductivity of polymers.
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Thermal conductivity of liquids and its temperature dependence

Journal of Physics D: Applied Physics, 1970
The temperature dependence of thermal conductivity of liquids as given by Horrocks and McLaughlin is re-examined and useful relations to estimate thermal conductivity are presented. In the case of the 12 homologous series considered the maximum deviation is about 5%.
Viswanath, DS, Bhagwant, Rao M
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Thermal conductivity temperature dependence of water confined in nanoporous silicon

Journal of Physics: Condensed Matter, 2022
Abstract Recently, it has been shown that high density nanoconfined water was the reason of the important enhancement of the effective thermal conductivity up to a factor of 50% of a nanoporous silicon filled with water. In this work, using molecular dynamics simulations, we further investigate the role of the temperature T (from 285 to ...
Xiaorui Wang, William Gonçalves, David Lacroix, Mykola Isaiev, Séverine Gomès, Konstantinos Termentzidis   +5 more
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Heat conduction with a temperature-dependent thermal conductivity coefficient

Journal of engineering physics, 1970
A variational method is employed to solve stationary and nonstationary heat conduction problems when the thermal conductivity coefficient is temperature-dependent and the heat generation function of the medium is arbitrary.
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Temperature Dependence of Thermal Conductivity Enhancement for Nanofluids

Journal of Heat Transfer, 2003
Usual heat transfer fluids with suspended ultra fine particles of nanometer size are named as nanofluids, which have opened a new dimension in heat transfer processes. The recent investigations confirm the potential of nanofluids in enhancing heat transfer required for present age technology.
Sarit Kumar Das, Nandy Putra, Peter Thiesen, Wilfried Roetzel   +3 more
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Temperature Dependence of Thermal Conductivity for Silicon Dioxide

ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer, Parts A and B, 2008
Heat transport of dielectric thin films in 30–300 nm thick is characterized in the temperature range of 74–300 K using the 3ω method, which is a simple method to measure the cross-plane thermal conductivity of dielectric thin films. Dielectric film samples of two kinds, deposited on Si substrates using plasma enhanced chemical vapor deposition (PECVD ...
Da-Jeng Yao, Wei-Chih Lai, Heng-Chieh Chien   +2 more
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The temperature dependence and anisotropy of the thermal conductivity in polyacetylene

Solid State Communications, 1981
Abstract Observations of anisotropic transport in (CH)x reported to date have been made on stretch-oriented films in the plane of the film. We report the first observations of anisotropy in the thermal conductivity measured parallel and perpendicular to the plane of unstretched films.
P.R. Newman, M.D. Ewbank, C.D. Mauthe, M.R. Winkle, W.D. Smolyncki   +4 more
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Temperature dependence of the thermal conductivity for tellurium dioxide

Solid State Communications, 1981
Abstract The thermal conductivity of tellurium dioxide is reported as a function of temperature. At 77K, the thermal conductivity is 0.09 W/cm-K and it decreases approximately as the inverse of the temperature to a value of 0.02 W/cm-K at 300K. The anisotropy between the a- and c-axes is less than 20% over the entire experimental temperature range ...
M.D. Ewbank, P.R. Newman
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