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BN1000 Boron Nitride Tube (BN Tube)

Boron Nitride Tube Properties

Boron nitride Tube

Compound Formula BN
Molecular Weight 24.82
Appearance White
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

 

Boron-Nitride-sds

 Download Boron Nitride SDS 

 

Boron Nitride Tube Description

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. 

boron nitride tube bond

Boron Nitride Tube Advantages

– 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).

Boron Nitride Tube Applications

-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

Boron Nitride Tube Available Materials

Material Description Availability
BN99 Hot pressed at high temperature (1900℃).
Excellent corrosion resistance and thermal conductivity. Limited wear resistance
Self-bonded and high purity(>99%)
Machinable Blanks
Finished Parts
BNBO General purpose material
Bonded by boric oxide
Finished Parts
BNCB Calcium borate bonded boron nitride
Enhanced moisture resistance
Finished Parts
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!

Packing Service

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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Boron Nitride (BN) Tube
Average rating:  
 1 reviews
by AndrewWinney on Boron Nitride (BN) Tube
good

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.