thermal conductivity


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thermal conductivity

[′thər·məl ‚kan‚dək′tiv·əd·ē]
(thermodynamics)
The heat flow across a surface per unit area per unit time, divided by the negative of the rate of change of temperature with distance in a direction perpendicular to the surface. Also known as coefficient of conductivity; heat conductivity.

thermal conductivity

The rate of transfer of heat by conduction; the amount of heat per unit of time per unit area that is conducted through a slab of unit thickness of a material if the difference in temperature between opposite faces is one degree of temperature; a property of the material itself, usually represented by the letter k and called k factor.
References in periodicals archive ?
The thermal conductivity measurement of epoxy composites is based on the heat flow meter method [21].
But fixing agents, which have low thermal conductivity, reduce the temperature tolerance and conductivity of the sheet.
2] are, respectively, the thermal conductivity of filler 1 and filler 2, [C.
2- Increasing in thermal conductivity of composite polymer by adding 4% Cu.
Final result, overall thermal conductivity for a given soil core, was evaluated as a mean value from all performed measurements (three different locations for each specimen).
In this study, the thermal conductivity and volumetric specific heat of low-density wooden mats were evaluated for each combination of mat density and mixing ratio.
Generally, at above room temperature, the thermal conductivity of the most dense ceramics decreased with increasing temperature because phonon scattering is more intense from the vibrating lattice at a higher temperature.
The models of DEMM and MEM can handle equivalent thermal conductivity in composite with 3 phases.
The thermal conductivity of the nanofluids was measured by thermal property analyser, KD2 Pro, Decagon Devices Inc.
So liquid layering can be a possible phenomenon for high thermal conductivity.
1996) observed that the apparent thermal conductivity of moist insulation depends on the manner that the liquid distribute in the insulation, and they considered bead, series and parallel arrangements when modeling the moisture status in porous insulation.