lämpöjohtimina
Lämpöjohtimina refers to the thermal conductivity of materials. Thermal conductivity is a material property that describes its ability to conduct heat. It is defined as the quantity of heat (Q) that flows through a unit area (A) of a material in a unit time (t) when there is a uniform temperature gradient (dT/dx) across the material. The unit for thermal conductivity is typically watts per meter-kelvin (W/(m·K)).
Materials with high thermal conductivity, such as metals like copper and aluminum, are good heat conductors.
Conversely, materials with low thermal conductivity are poor heat conductors, often referred to as thermal insulators.
The thermal conductivity of a material is influenced by its composition, structure, and temperature. For instance,