Thermal conductivity： refers to the amount of heat transferred through a unit horizontal cross-sectional area per unit time when the temperature vertical downward gradient is 1°C/m, reflecting the thermal conductivity of a substance. The symbol is λ or K. The thermal conductivity of various substances is mainly determined by experiment, and its theoretical estimation is an active subject in modern physics and physical chemistry. Thermal conductivity is generally not related to pressure, but is greatly affected by temperature.
With the rapid development of science and technology, more and more polymer materials and nano materials are emerging. The experimental determination of thermal conductivity of various new substances and materials will open up a new and unknown field, which will inevitably lead to a new leap in modern physics. At the same time, it will lay a solid theoretical foundation for the development and research of new thermal conductivity materials and new thermal insulation materials.
Thermal Conductivity – Aluminum, Steel, Copper
Thermal conductivity of solid aluminum 237W/mK
Thermal conductivity of commonly used metal materials:
Material thermal conductivity (W/mk)
Pure aluminum 217.7
Pure copper 376.8
Cast iron 54.4