Thermal conductivity and resistivity - Wikipedia
网页The thermal conductivity of a material is a measure of its ability to conduct heat. It is commonly denoted by , , or and is measured in W·m −1 ·K −1. Heat transfer occurs at a lower rate in materials of low thermal conductivity than …
熱導率 - 维基百科，自由的百科全书
网页热导率（英語： Thermal conductivity ）其符號為 、 或 ，是指材料传导热能的能力，或称热传导率。 單位為瓦·公尺-1 ·克耳文-1 （ ）
What is Thermal Conductivity – Definition - Thermal Engineering
网页2019年5月22日 · The proportionality constant obtained in the relation is known as thermal conductivity, k (or λ), of the material. A material that readily transfers energy by conduction is a good thermal conductor and has a high value of k. Fourier’s law is an expression that define the thermal conductivity.
热导率 - 百度百科
网页英文：coefficient of thermal conductivity. 是指当温度垂直向下梯度为1℃/m时，单位时间内通过单位水平截面积所传递的 热量。. 其具体定义为：在物体内部垂直于导热方向取两个相距1米，面积为1平方米的平行平面，若两个平面的温度相差1K，则在1秒内从一个平面传导 ...
Thermal conductivity | Definition, Science, & Applications
网页thermal conductivity, the ability of a substance to conduct heat or move heat from one location to another without the movement of the material conducting the heat. Thermal conductivity is measured in watts per meter kelvin (W/mK). For example, solid aluminum has a thermal conductivity of 237 W/mK at –73 °C (–99 °F), 236 W/mK at 0 °C (32 ...
Thermal Conductivity - an overview | ScienceDirect Topics
网页Thermal conductivity is a measure of the rate of transfer of energy. The coefficient of thermal conductivity λ is defined as the rate of transfer of energy across unit area of surface, when there is a unit temperature gradient, dT /d y, perpendicular to the surface.
熱導率 - 維基百科，自由的百科全書
网页熱導率（英語： Thermal conductivity ）其符號為 、 或 ，是指材料傳導熱能的能力，或稱熱傳導率。 單位為 瓦 · 公尺 -1 · 克耳文 -1 （ W m K {\displaystyle W \over \ mK} ）
The Ultimate Guide to Thermal Conductivity: Calculator, …
网页2024年2月8日 · This guide offers a clear explanation of thermal conductivity, demonstrates how to apply the heat flux formula accurately, and discusses the units of thermal conductivity in detail.
What is thermal conductivity? (article) | Khan Academy
网页What is thermal conductivity? Science>. AP®︎/College Physics 2>. Thermodynamics>. Thermal energy and thermal equilibrium.
THERMAL CONDUCTIVITY
网页2011年2月2日 · Thermal conductivity in metals depends on the motion and interaction of current carriers, i.e., conduction electrons. Generally, the coefficient of thermal conductivity λ of a metal equals the sum of lattice (phonon) λ ph, and electron λ e components, λ = λ e + λ ph; at ordinary temperatures, as a rule, λ e >>λ ph.
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