Is epoxy a good thermal conductor?

Typically, epoxy resin is used as an insulating material for general electronic devices owing to its moderate flexibility compared to other thermosetting resins, such as phenolic, bismaleimide, and cyanate ester resins. However, its thermal conductivity is very low, typically ~ 0.2 W m−1 K−11.

Which material has the highest thermal conductivity?

Along with its carbon cousins graphite and graphene, diamond is the best thermal conductor around room temperature, having thermal conductivity of more than 2,000 watts per meter per Kelvin, which is five times higher than the best metals such as copper.

Which ceramic has the highest thermal conductivity?

Aluminum nitride ceramics
Aluminum nitride ceramics are the most widely used high thermal conductivity materials. The theoretical thermal conductivity of aluminum nitride single crystal can reach 3200W/m•K.

How do you make epoxy thermally conductive?

Thermal conductivity of a typical unfilled epoxy system has a very low value of 0.14 W/(m•K). This key property can be increased by adding metallic or ceramic fillers to the adhesive formulation. The type of filler, concentration of particles, their size and shape will determine the thermal conductivity of the product.

What is thermal bond epoxy?

Thermal epoxies create a strong mechanical bond between surfaces while offering high heat transfer and high voltage isolation. These specialized epoxies are mixed with thermally conductive fillers like ceramics or metallic particles that enable heat to easily transfer through the material.

Is Silicon a good thermal conductor?

Silicone has a low thermal conductivity, which means that it transfers heat at a low rate compared to other materials. This low thermal conductivity can also be described as high thermal (heat) resistance.

Does ceramic have high thermal conductivity?

Ceramics are increasingly used in packages and printed circuit boards, because they have a number of advantages over plastics: much higher thermal conductivity, possible match of the coefficient of thermal expansion, and hermetic sealing.

Why ceramic have high thermal conductivity?

Thermal Conductivity of Fine Ceramics Metals with low electrical resistance and crystals in which lattice vibrations are transferred easily (for example, crystals with atoms or ions of similar masses at lattice points and covalent crystals with strong bonds) display high thermal conductivity.

Is thermal epoxy permanent?

When applying thermal epoxy it is very important to use the least possible amount required to fill any voids and make the bond. If a too-thick coat of epoxy is applied, the electrical conductivity of the epoxy will be degraded. Once the epoxy has cured, the bond between the two surfaces is permanent.