What metal conducts heat best? Which metals have the highest thermal conductivity?

The material with the best thermal conductivity is diamond, which has a thermal conductivity of 1300 2400

w/(m*k)。

Metals: Silver conducts heat best, followed by copper, gold and aluminum.

The metals in order of thermal conductivity are: silver (Ag), copper (Cu), gold (Au), aluminum (Al), sodium (Na), molybdenum (Mo), tungsten (W), zinc (Zn), nickel (Ni), iron (Fe), platinum (Pt), tin (sn), and lead (PB).

The thermal conductivity of a metal is measured in terms of thermal conductivity. The magnitude of the thermal conductivity indicates the size of the thermal conductivity of the substance, the larger the thermal conductivity, the corresponding decrease in the thermal conductivity, and the enhancement of the thermal conductivity. Among metal materials, silver has the highest thermal conductivity, but the cost is high, followed by pure copper, but it is not easy to process.

The principle of thermal conductivity of metals

The thermal conduction of metal conductors is mainly through the movement of electrons, while the thermal conductivity of insulators mainly depends on the conduction of lattice waves, that is, the movement of phonons, for semiconductors, because the resistance is quite high, the properties are between conductors and insulators, so the thermal conductivity is determined by the above two mechanisms. In general, phonon contributes much more to thermal conductivity than electrons.

The thermal conductivity of a metal crystal is due to the collision of free electrons and metal cations inside the crystal, and the other metal atom loses its outermost electrons and collides with the third (adjective) metal cation silver to become a neutral atom.

If the right end is heated, the neutral atom at the right end loses electrons and carries energy to the left metal cation to the left metal atom, and when heated it loses electrons, it is transferred to the left end, so that the heat is transferred from the right end to the left end.

The metal with the best thermal conductivity is silver.

Thermal conductivity of metal materials: silver has the best thermal conductivity, followed by copper, gold and aluminum.

The metals with the best electrical and thermal conductivity are as follows:

1. Silver. Silver is a type of transition metal. Silver is one of the metals known and used in ancient times, and it is an important one. Silver is found in nature, but most of it is found in silver ore in the form of chemical combinations.

The physical and chemical properties of silver are relatively stable, with good thermal and electrical conductivity, soft quality and ductility. Its reflectivity is extremely high, up to more than 99%. There are many important uses.

2. Copper. Copper is a transition element, pure copper is a soft metal, the surface is reddish-orange with a metallic luster when the surface is just cut, and the element is purple-red. Good ductility, high thermal and electrical conductivity, so in cables and electrical and electronic components are the most commonly used materials, can also be used as building materials, the most important of which are bronze and brass.

Copper is also a durable metal that can be used many times without compromising its mechanical properties.

3. Aluminum. Silvery-white light metal. Malleable. Commodities are often made into sticks, sheets, and foils. In humid air, the pins form a layer of oxide film to prevent metal corrosion.

Soluble in dilute sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide and potassium hydroxide solutions, insoluble in water. The content of aluminum in the earth's crust is second only to oxygen and silicon, ranking third in Douzhou, and it is the most abundant metal element in the earth's crust. <>

Among the metals, the best thermal conductivity is silver (Ag), copper, gold, and aluminum.

The thermal conductivity coefficient is defined as how much W of energy can be transmitted per unit length and per k, and is measured in W mk. where "w" refers to the unit of thermal power, "m" represents the unit of length in meters, and "k" is the unit of absolute temperature. The higher the value, the better the thermal conductivity.

Of all metals, silver has the best electrical conductivity, thermal conductivity, and reflection of visible light, and has good ductility. Bank of China is the most chemically active. The most industrially valuable silver compounds are silver nitrate and silver halide.

The thermal conductivity of common metals is roughly silver, aluminum, copper (copper), brass, and steel.

Application of aluminum alloy:

At present, almost all of the most used metal heat sink materials on the market are aluminum alloys, and only a few use other thermally conductive materials. In fact, aluminum is not the best thermal conductivity of metal materials, the best effect is silver, followed by copper, and then aluminum is the next grade. However, silver is expensive, and copper is bulkier, so most of them will not choose the thermal conductive material of these two types of metals with the most heat sinks.

Aluminum, on the other hand, is very lightweight, taking into account both thermal conductivity and light weight. However, the general aluminum heat sink is not 100% pure aluminum, because most of the pure aluminum is too soft, so a small amount of other metals will be added, cast and become aluminum alloy, in order to obtain the appropriate hardness, it can be said that aluminum alloy is the best material for electronic parts heat sink at this stage. <>

The material with the best thermal conductivity is silver.

Metals are arranged by degree of thermal conductivity: silver (Ag), copper (Cu), gold (Au), aluminum (Al), sodium (Na), molybdenum (Mo), tungsten (W), zinc (Zn), nickel (Ni), iron (Fe), platinum (Pt), tin (sn), lead (PB). The thermal conductivity of a metal is measured in terms of thermal conductivity.

Top 10 Commonly Used Thermal Conductive Materials:

1. Diamond, 2200 W m K

Diamond is one of the materials with the highest thermal conductivity, with a thermal conductivity value five times that of copper, the most produced metal in the United States. The diamond transport atom is composed of a simple carbon backbone, which is an ideal molecular structure for efficient heat transfer. In general, materials with the simplest chemical composition and molecular structure usually have the highest thermal conductivity values.

2. Silver, 429 W m K

Silver is a relatively inexpensive and abundant conductor of heat. Silver is the material used in many utensils and is one of the most versatile metals due to its good malleability.

3. Copper, 398 W m K

In the United States, copper is the most commonly used metal in the manufacture of heat-conducting appliances. Copper has a high melting point and a moderate rate of corrosion. In addition, the quiet rent can effectively reduce the energy loss in the process of impulse heat transfer. Metal pots, hot water pipes, and car radiators are just a few appliances that take advantage of copper's thermally conductive properties.

4. Gold, 315 W m K

is a rare type of application for specific thermal conductivity. Unlike silver and copper, ** generally does not tarnish and is highly resistant to corrosion.

5. Aluminum nitride, 310 W m K

Aluminium nitride is often used as a substitute for beryllium oxide. Unlike beryllium, aluminum nitride does not pose a health hazard to production, but still exhibits similar chemical and physical properties to beryllium oxide.

6. Silicon carbide, 270 W m K

Silicon carbide is a semiconductor that consists of a balance of silicon atoms and carbon atoms. Silicon and carbon are fused together, and the two are combined to form a very hard, durable material.

7. Aluminum, 247 W m K

Aluminum has a lower cost and is often used as a substitute for copper. Although it is not as thermally conductive as copper, aluminum is abundant and has a low melting point, making it easy to process.

8. Tungsten, 173 W m K

Tungsten has a high melting point and low vapor pressure, making it an ideal material for high-current appliances. Tungsten is chemically stable and can be used in electrodes for electron microscopy without changing the current.

9. Graphite, 168 W m K

Compared to other carbon allotropes, graphite is an excellent alternative due to its abundant reserves, low cost and light weight.

10. Zinc, 116 W m K

Zinc is one of the few metals that can easily combine with other metals to form metal alloys (mixtures of two or more metals). <>

The best material for thermal conductivity is diamond, which has a thermal conductivity of 1300 2400 W (m*k).

Metals: Silver conducts heat best, followed by copper, gold and aluminum.

Non-metallic: Diamond conducts heat best, followed by silicon (Si).

The process of transferring heat from the high-temperature region to the low-temperature region is called heat conduction due to the thermal motion of microscopic particles such as molecules, atoms, and electrons inside the object, and the matter that makes up the object does not undergo macroscopic displacement.

Metals (in order of thermal conductivity) are: silver (Ag), copper (Cu), gold (Au), aluminum (Al), sodium (Na), molybdenum (Mo), tungsten (W), zinc (Zn), nickel (Ni), iron (Fe), platinum (Pt), tin (sn), lead (PB). The thermal conductivity of a metal is measured in terms of thermal conductivity.

Thermal conductivity refers to the thickness of a material that is 1 m under stable heat transfer conditions.

Common metallic silver conducts heat best.