What is the thermal conductivity of aluminum nitride?

Aluminum Nitride Engineering Properties*

Aluminum Nitride
Mechanical Units of Measure SI/Metric
Thermal Conductivity W/m•°K (BTU•in/ft2•hr•°F) 140–180
Coefficient of Thermal Expansion 10–6/°C (10–6/°F) 4.5

Is aluminum nitride conductive?

Related Materials Aluminum Nitride is one of the few materials that offers electrical insulation and high thermal conductivity. This makes AlN extremely useful in high power electronic applications in heat sink and heat spreader applications.

Is aluminum nitride a dielectric?

Aluminium nitride (AlN) is a solid nitride of aluminium. It has a high thermal conductivity of up to 321 W/(m·K) and is an electrical insulator….Aluminium nitride.

Band gap 6.015 eV (direct)
Electron mobility ~300 cm2/(V·s)
Thermal conductivity 321 W/(m·K)

Is AlN an insulator?

AlN can be metalized, plated and brazed. It is also a good electrical insulator and can be easily metallized if required.

Is aluminum nitride a semiconductor?

Aluminum nitride (AlN) is a III-V semiconductor with a wurtzite crystalline structure. AlN has useful properties: it has a very wide bandgap, high thermal conductivity, and high transparency of ultraviolet light.

What is aluminum nitride used for?

Ceramic Material with Very High Thermal Conductivity This makes aluminum nitride predestined for use in power and microelectronics applications. For example, it is used as a circuit carrier (substrate) in semiconductors or as a heat-sink in LED lighting technology or high-power electronics.

Can you machine aluminum nitride?

Although thin Aluminum Nitride components are fairly straightforward to machine using laser cutting techniques, machining thicker components from aluminum nitride can be extremely challenging for machining companies that do not specialize in this type of fabrication.

What is the band gap of aluminum nitride?

6.0 eV
Aluminum nitride (AlN) has attracted increasing interest as an optoelectronic material in the deep ultraviolet spectral range due to its wide bandgap of 6.0 eV (207 nm wavelength) at room temperature.

Is aluminum nitride a ceramic?

Aluminum nitride (AlN) is a technical ceramic material that features an extremely interesting combination of very high thermal conductivity and excellent electrical insulation properties.

What is the formula for Aluminium nitride?

AlNAluminium nitride / Formula

Where is Aluminium nitride used?

microelectronics industry
AlN is primarily used in the microelectronics industry as an electrically insulating but thermally conducting barrier layer in silicon-based electronic devices. Given its deep UV bandgap, there is interest in high-quality AlN structures that can produce UV light as light-emitting diodes (LEDs) or lasers.

Is aluminum nitride toxic?

Aluminum Nitride Toxicity Exposure to AlN through mouth, inhalation, or injection may cause bone and lung toxicity. Repeated exposure can irritate the eyes and skin.

What materials have a high thermal conductivity?

Polycrystalline diamond (PCD)

  • Silicon carbide
  • Silicon nitride
  • Beryllium Oxide
  • Aluminum nitride (AlN)
  • What metal has the highest thermal conductivity?

    Conduction is the transfer of energy from one molecule to another by direct contact.

  • Convection is the movement of heat by a fluid such as water or air.
  • Radiation is the transfer of heat by electromagnetic waves.
  • Which polymers have high thermal conductivity?

    Introduction. Since their earliest development,composite materials have primarily been used for structural applications.

  • Experimental. Using the substrate-growth technique,mats of VGCF were prepared.
  • Results and discussion. Several composites with different fiber volume fractions and architectures were fabricated.
  • Conclusions.
  • Aluminum Nitride (AlN) is an excellent material to use if high thermal conductivity and electrical insulation properties are required. Because of it’s qualities, it is an ideal material for use in thermal management and electrical applications. Some common applications of Aluminum Nitride include the following: Heat sinks & heat spreaders