BN0948 Pyrolytic Boron Nitride Plates, PBN Discs

Catalog No. BN0948
Size Thickness: 0.5mm~4mm
Material PBN, Pyrolytic Boron Nitride
Purity 99.99%

Stanford Advanced Materials provide our customers with high purity 99.99% pyrolytic boron nitride plates and discs as your high purity source for boron nitride ceramics. Compared with normal boron nitride ceramic, pyrolytic boron nitride (PBN) has a much better purity level and higher density.

Related Products: Boron Nitride Rod (BN Rod), Boron Nitride Tube (BN Tube)

Pyrolytic Boron Nitride Plates Description

Compared with normal boron nitride ceramic, pyrolytic boron nitride (PBN) has raw materials with a much higher purity level. Pyrolytic boron nitride plates, discs, and other pyrolytic boron nitride products are synthesized on the mold by chemical vapor deposition (CVD) process, with BCl3 and NH3 at high temperature and low pressure. The PBN products are extremely pure (99.99%), as the purity of vapor is easier to be controlled. Most PBN products made from the CVD process have a total impurity of less than 100 ppm. With such a high purity level, PBN plates are ideal products for semiconductor industries.  

Similar to graphite, boron nitride has great strength at high temperatures. High purity PBN products have even better mechanical properties. As the solid material is formed by the CVD process, the density of the products could almost reach the theoretical value. PBN products provided by Stanford Advanced Materials also have great thermal shock resistance. Plates of PBN could be heated to more than 2000 degrees and dropped into the water without getting broken.

 

Pyrolytic Boron Nitride Plates Properties

pyrolytic-boron-nitride

Item

value

Unit

lattice constant

a:2.504×10-10     c:6.692×10-10

μ m

density

2.0-2.19

g/cm3

resistivity

3.11×1011

Ω·cm

tensile strength(ab)

153.86

N/mm2

bend strength

c

243.63

N/mm2

ab

197.76

N/mm2

elastic modulus

 

235690

N/mm2

thermal conductivity

 

“a” direction    “c” direction

 

(200℃)

60                  2.60

W/m·k

(900℃)

43.70             2.80

W/m·k

dielectric strength(at room temperature)

56

KV/mm


Please notice, as a CVD material, pyrolytic boron nitride plates & discs could not be very thick. The largest thickness available for our PBN plate & disc is 0.2". We also provide PBN crucibles, tubes, and heating elements!

 

Pyrolytic Boron Nitride Plates Applications

Pyrolytic boron nitride plate is an ideal choice in a wide range of industries, such as:

-Electric insulators in the 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

 

Pyrolytic Boron Nitride Plates Packaging

Our pyrolytic boron nitride plates & discs are wrapped in foam and packaged in plywood cases to ensure safe storage and transportation.

packing packing

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