Boron Nitride Tube (BN Tube) is made...
Boron Nitride Tube (BN Tube) is made of powdered hexagonal boron nitride through high-temperature vacuum hot-pressing sintering. Heeger Materials is a worldwide supplier of high-quality Boron Nitride Tubes.
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Boron nitride pipes are mainly used as insulating sleeves. Boron Nitride(also referred to as BN), Hexagonal boron nitride (H-BN), and hot-pressed boron nitride, are good self-lubricate ceramic that will withstand heat and maintain their lubricating capability during a high vacuum environment. Hexagonal boron nitride (H-BN) behaves almost like graphite mechanically, but it offers better electric resistance. The Boron Nitride Tubes (BN Tubes) from Heeger Materials are made up of hot-pressed boron nitride blank.
– Low wettability to molten metal
– Low dielectric constant
– Relatively high dielectric strength
– Relatively high thermal conductivity with low thermal expansion
– Relatively high thermal shock resistance
– Extremely high working temperature with proper inert gas protection (>3000C has been recorded).
– Chemical Vapor Deposition (CVD)
Boron Nitride ceramic from Heeger Materials can endure heat within the high vacuum environment, plus it's chemically inert — the excellent corrosion resistance and electric resistance. Therefore, Boron Nitride ceramic product is a perfect choice during a wide selection of industries, such as:
-Electric insulators in vacuum system
-Boron Nitride ceramic components for PVD, MOCVD, MBE system.
-Nozzles for nonferrous metals metallurgy industry
-Spacers for glass melting
-Insulators for high-temperature furnace
Hot pressed at high temperature (1900℃).
Calcium borate bonded boron nitride
BN 60%, SiO2 40%
BN 40%, SiO2 60%
BN-45%, Zr2O3 45%