thermal conductivity

(redirected from conductivity, thermal)
Also found in: Dictionary.

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 ?
Labcell has introduced the Decagon KD2 Thermal Analyzer, a handheld instrument that is suitable for measuring thermal conductivity, thermal diffusability, thermal resistivity and temperature in foodstuffs.
SARCON[R] XR-e and XR-j thermal gap filler pads feature improved thermal conductivity, thermal resistance, consistency and elasticity.
We have conducted a systematic investigation of ionic conductivity, thermal behavior and electrochemical properties of the elastomeric copolymer poly(epichlorohydrin-co-ethylene oxide) and the terpolymer poly(epichlorohydrin-co-ethylene oxide-co-allyl glycidyl ether) [ILLUSTRATION FOR FIGURE 1 OMITTED].
This can clearly be seen in Figure 2, where the Seebeck coefficient, electrical conductivity, thermal conductivity, and figure of merit (which measures how good a material is for thermoelectric energy conversion) are plotted versus carrier concentration.
Sapphire is a desirable material for high-performance applications due to its hardness and strength, transparency in the visible and IR spectrum, thermal conductivity, thermal shock resistance, abrasion resistance, high melting point and chemical inertness.
Besides improving electrical conductivity, thermal conductivity can also be increased at low content of carbon nanotubes (refs.
No calibration is required, as the instrument utilises a simple yet precise heating and monitoring system to give a direct readout of thermal conductivity, thermal diffusivity and temperature.
With electrical conductivity, thermal conductivity is increasingly recognized as a critical property of engineered materials.
Nhi, "An extension to the dynamic plate source technique for measuring thermal conductivity, thermal diffusivity and specific heat of dielectric solids," Rev.