technical ceramic solutions

Is hexagonal boron nitride (HBN) a conductor or an insulator?

BN ceramics

Hexagonal boron nitride is a boron product with a wide range of applications. For it, the question that many people are very concerned about is whether hexagonal boron nitride is a conductor or an insulator?

In fact, hexagonal boron nitride (HBN) is a typical insulator, and the resistivity at room temperature can reach 1016-1018Ω.cm, even at 1000°C, the resistivity is still 104-106Ω.cm.

The insulating properties of hexagonal boron nitride (HBN) are very good, and the thermal conductivity is very good. Therefore, it is widely used in various electronic materials and plays the role of thermal conductivity and insulation.

The boron nitride ceramic crystal belongs to the hexagonal crystal system, its structure is similar to graphite, and its properties have many similarities, so it is also called “white graphite”.

It has good heat resistance, thermal stability, thermal conductivity, high temperature dielectric strength, and is an ideal heat dissipation material and high temperature insulating material.

Typical applications include the following:
Electrode insulation parts and protective tubes for high temperature furnaces; boron nitride insulation components for polysilicon ingot furnaces, semiconductor heat dissipation insulation parts, high temperature bearings, thermowells and glass forming molds, crucibles for melting semiconductors, high purity boron nitride for molten metals Crucibles; Nitride phosphors, silicon nitride, aluminum nitride and other ceramics and crucibles for powder sintering, setter plates, etc.