lämmönojohtavuus
Lämpöjohtavuus, often denoted by the symbol k, λ, or κ, is a material property that describes its ability to conduct heat. It quantifies how effectively thermal energy is transferred through a material via conduction. Materials with high thermal conductivity, such as metals, readily transfer heat, while materials with low thermal conductivity, such as insulators, resist heat flow. This property is crucial in various engineering applications, including thermal insulation, heat exchangers, and the design of electronic components.
The unit of thermal conductivity in the International System of Units (SI) is watts per meter-kelvin (W/(m·K)).
Thermal conductivity is influenced by factors such as temperature, the material's phase (solid, liquid, gas), and