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PBN1344 Pyrolytic Boron Nitride (PBN) Strip

PBN Strip Properties

Pyrolytic Boron Nitride Strip

Compound Formula BN
Molecular Weight 24.82
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

 

 

PBN Strip Description

Compared with normal boron nitride ceramic, pyrolytic boron nitride (PBN) has much better purity level. PBN crucibles and other pytolytic 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, as the purity of vapor is easier to be controlled. Most of PBN products made from CVD process have total impurity of less than 100 ppm, which means the purity is better than 99.99%. With such a high purity level, PBN crucibles are ideal products for semiconductor industries.

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

PBN Strip Specification

PBN Material properties

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

thermo 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

 

PBN Strip Applications

Boron Nitride ceramic from Advanced Ceramic Materials can withstand high temperature in high vacuum environment, plus it has excellent corrosion resistance and electrical resistance. Thus, Boron Nitride ceramic product is an ideal choice in a wide range of industries, such as:
– Crucibles for crystal growth
– Break rings for horizontal casting machine
– Insulators for high temperature furnace
– Electric insulators in vacuum system
– Feed through for high voltage equipment

Packing Service

ACM’s PBN Strips are 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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Pyrolytic Boron Nitride (PBN) Strip
Average rating:  
 1 reviews
by John O. Moore on Pyrolytic Boron Nitride (PBN) Strip

Very nice PBN Strip at a very reasonable price. This type of material is hard to find in my town.

ACM's delivery is fast and well-packed.