Conventional oxide ceramic insulators, such as alumina and zirconia, maintain stable electrical insulation and mechanical strength below 1 500 °C but often suffer breakdown above 2 000 °C due to phase transformations. In contrast, hexagonal boron nitride (hBN), with its hexagonal lattice structure, offers high‑temperature stability and can sustain its insulating performance in extreme thermal environments, making it the material of choice at these temperatures. To ensure reliable operation under such conditions, industrial‑grade hBN must have very high purity and minimal boron oxide content; otherwise, residual boron oxide impurities can form conductive phases at elevated temperatures, degrading its dielectric properties.

Cheapest China Supplier of High-Purity BN Ceramics – Insulation Components, Crucibles

As a trusted and cost-effective BN ceramics supplier in China, we offer high-purity boron nitride products, including electrical insulation components, crucibles, and plates that can be used for temperatures exceeding 2000ºC