Hexagonal Boron Nitride (h-BN) Powder With 99.5% Purity

Hexagonal Boron nitride (h-BN), also referred to as "white graphite", possesses a hexagonal layered crystal structure analogous to graphite. It appears as fluffy, lightweight pure white powder with a Mohs hardness of 2 and soft texture. It delivers a comprehensive set of outstanding properties: excellent high-temperature lubricity, thermal conductivity roughly 10 times that of quartz, low thermal expansion coefficient, superior thermal shock resistance, reliable electrical insulation and low dielectric loss. It can withstand temperatures up to 2800 °C under nitrogen atmosphere.   Chemically stable, h-BN is inert to molten metals and resistant to acid and alkali corrosion, while featuring strong neutron absorption capacity. BoronHub offers custom h-BN powder with high purity, high crystallinity and flaky morphology, with particle sizes processable down to less than 1 μm. Widely applied in high-temperature solid lubricants, release agents for metal forming, chip thermal management, thermally conductive polymer fillers, high-temperature refractories, aerospace wave-transparent materials, nuclear neutron shielding and premium cosmetic fillers, it is an indispensable multi-functional material for high-end manufacturing.