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Best Metal based boron nitride coating for casting manufacturers talks about the material properties of boron nitride

2021-12-14 15:59

Do you know the material properties of boron nitride? Follow the editor of Best Metal based boron nitride coating for casting manufacturers to have a simple look!
CBN is usually black, brown or dark red crystals with a zinc blende structure with good thermal conductivity. Hardness is second only to diamond, it is a super hard material, often used as tool materials and abrasives.


Boron nitride has chemical resistance properties and is not corroded by inorganic acids and water. The boron-nitrogen bond is broken in the hot concentrated alkali. Above 1200℃, it will start to oxidize in the air. It begins to decompose at about 2700°C under vacuum. Slightly soluble in hot acid, insoluble in cold water, relative density 2.29. The compressive strength is 170MPa. The higher operating temperature is 900°C in an oxidizing atmosphere, and it can reach 2800°C in an inactive reducing atmosphere, but the lubricating performance is poor at room temperature. Most of the properties of boron nitride are better than carbon materials. For hexagonal boron nitride: low friction coefficient, good high temperature stability, good thermal shock resistance, high strength, high thermal conductivity, low expansion coefficient, high resistivity, corrosion resistance, microwave or transparent Infrared.
The above is the editor of Best Metal based boron nitride coating for casting manufacturers: a brief introduction to the relevant knowledge of the material properties of boron nitride.

BND--R&D of high end auxiliary materials for aluminum processing
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