Boron Nitride Bar
High purity/Enhanced hot pressed boron nitride rods
Purity: 99.5% (TPBN,HBT grade)
Ref. Price: $21~35/Inch3
Max. Size: 12" dia. x 16" H
Catalog No.: BN-BAR
- Product Details
Boron Nitride Bar Introduction
Boron nitride (BN) bars or rods are usually the raw material to make fine parts. It could also directly be applied directly as insulators or structural parts in some electronic or vacuum equipment.
Bars with higher purity usually could withstand higher temperature, especially in vacuum and inert protection, than enhanced BN products which is lower purity in boron nitride content. Although we usually claim the maximum working temperature as 2500C, there's record to use our material at 3000+ C for pure boron nitride. Due to the low wettability with metals, boron nitride is an ideal material for metal melting works, especially for high purity material metal in vacuum.
QSAM supplies pure and enhanced BN bars in all available dimensions with quick turn around. Typical BN products are smaller than 12" dia x 15" length rod, due to the limitation of our equipment.
Boron Nitride Bar Mateirals Properties
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Common properties and advantage of boron nitride (compared with the other ceramic materials) |
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>Low wettability 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). |
As a supplier of special advanced ceramic materials, QSAM is working together with researching institutions to produce a series of boron nitride material shapes, including bars, rods and tubes. Except for the pure boron nitride BN99, we also deliver composite BN material with silicon carbide, calcium borate, aluminum nitride and zirconia, to fulfill various of demand for the customers.
List of major boron nitride material QSAM could supply
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BN99 (Data Sheet) |
>99% Pure boron nitride material |
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BN-SiC (Data Sheet) |
SiC enhanced boron nitride |
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BN-AlN (Data Sheet) |
Aluminum Nitride enhanced BN |
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ZCBN (Data Sheet) |
Zirconia enhanced BN |
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PBN (Data Sheet) |
Pyrolytic boron nitride (high purity, not hot pressed) |
*Hexagonal Boron Nitride, or h-BN, with hardness about 4, is a machinable material. HBN/HBR is originally a product code for other manufacture and represents for the boric oxide or calcium enhanced BN material respectively. QSAM is also providing calcium borate enhanced BN bars with similar performance compared with HBN and HBR. Although calcium (or zirconium) enhanced HBR (or ZSBN) are the most common composite boron nitride material, we also produce a series of other composite boron nitride, such as AlN-BN, SiC-BN. HBT is a product code for thermal purified hexgonal boron nitride ceramic, same to our TPBN material.
Boron Nitride Bar Packaging
As a ceramic material, boron nitride is quite fragile in a lot of cases. The BN insulators are usually hold in plastic bags by vacuum, and protect with heavy foam.
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