|Appearance||Black solid in various forms|
|Melting Point||2973 °C|
|Density||2.1 g/cm3 (h-BN); 3.45 g/cm3 (c-BN)|
|Solubility in H2O||Insoluble|
|Refractive Index||1.8 (h-BN); 2.1 (c-BN)|
|Electrical Resistivity||13 to 15 10x Ω-m|
Download Boron Nitride SDS
Boron nitride, or BN, is a chemical compound with equal numbers of boron and nitrogen atoms. The hexagonal form (HBN) corresponding to graphite is the softest and most stable form among BN polymorphs, and is therefore used as lubricant and an additive to cosmetic products. The cubic (CBN) variety analogous to diamond has high hardness which is inferior only to diamond. The rare wurtzite BN (WBN) modification is similar to lonsdaleite, and it may even be harder than CBN.
Boron nitride tubes could be connected together to make longer boron nitride tubes, with flat or threaded joint presented below.
– Low wetability to molten metal
– 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).
-Electric insulators in vacuum system
-Boron Nitride components for PVD, MOCVD, MBE system.
-Nozzles for nonferrous metals metallurgy industry
-Spacers for glass melting
-Insulators for high-temperature furnace
|BN99||Hot pressed at high temperature (1900℃).
Excellent corrosion resistance and thermal conductivity. Limited wear resistance
Self-bonded and high purity(>99%)
|BNBO||General purpose material
Bonded by boric oxide
|BNCB||Calcium borate bonded boron nitride
Enhanced moisture resistance
|BN60||BN 60%, SiO2 40%||Finished Parts|
|BN40||BN 40%, SiO2 60%||Finished Parts|
|ZSBN||BN-45%, Zr2O3 45%||Finished Parts|
Specifications of BN99 and ZSBN for your reference!
ACM’s Boron Nitride Tube is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
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In short, these boron nitride tubes I bought from Advanced Ceramic Materiaals are easy to use and of high quality. Make sure that you have ordered the right size.