PBN (Pyrolytic Boron Nitride) is an anisotropic, high temperature ceramic, which exhibits a unique combination of high electrical resistance and good thermal conductivity.
This inert, non-porous compound is exceptionally pure by virtue of its synthesis process (high temperature/low pressure chemical vapour deposition).
We can supply at very competitive prices. PBN crucibles are not stocked items, delivery is usually 14 to 30 days. We have a minimum order number of 4 items of any single size.
TYPICAL PROPERTIES OF PYROLYTIC BORON NITRIDE
|Apparent Density, gm/cc:||1.95 – 2.22|
|Tensile Strength, MPa (psi)||40 (6000)|
|Flexural Strength, MPa (psi)||80 (12,000)|
|Thermal Conductivity, W/moC ‘ab’ 60, ‘c’ 2|
CTE, mm/mm/oC (1000oC) ‘ab’
|2 x 10-6|
|Dielectric Strength, D.C. volts/mm||2 x 105|
|Dielectric Constant ‘ab’ 5.2, ‘c’||3.4|
|Total Metallic Impurities, ppm||< 100|
|Max. Suggested use (oC)||2500|