Boron nitride insulator parts

Boron Nitride has the highest operating temperature in inert gas and vacuum environment. It has excellent electrical insulation, high thermal conductivity, low thermal expansion coefficient, excellent thermal shock resistance, it is usually used for electrical insulating components for vaccum furnace. It can be used as metal smelting crucibles because it will not react with most molten metals. Moreover, Boron Nitride can be quickly machined into high accuracy components by the normal mechanical machining methods.  

Typical Properties:

High electrical resistivity
Low density
High thermal conductivity
Corrosion resistant
Good chemical inertness
High temperature material 
Low coefficient of friction
Non-wetting (without oxidization)
High dielectric breakdown strength
Excellent Machinability

Application examples:

Heat treatment fixtures

Nozzles for transfer or atomization

High temperature or high voltage electrical insulators

Vacuum furnace supporters which require electrical resistivity

Crucibles or containers for high purity molten metals

Break rings for continuous casting of metals