Parameter of PBN

 Parameter of PBN
(Pyrolytic Boron Nitride) 

  •  
PropertiesUnitsValues
Densityg/cm32.00-2.20
Tensile StrengthMPa58
Bending StrengthMPa101
Compression StrengthMPa244
Young's ModulusGPa25
Poisson Ratio0.25
Thermal ConductivityW/m°C"a" 92.1     "c" 2
Specific HeatJ/g·℃0.96（RT）
ResistivityΩ.cm"a"5×108, "c"5×1010
Dielectric StrengthD.C. volts/mm2x105
Dielectric Constant"c" 3.07
Metal Impurity Contentppm<10

Comments

Post a Comment

Popular posts from this blog

MOCVD Heater

Image
Introduction MOCVD（Metal-organic Chemical Vapor Deposition）is a special process to grow semiconductor thin films on the matrix. It was developed on the basis of vapor phase epitaxial (VPE) growth, and has become a new technology in VPE. The source materials of crystals grown by MOCVD are metal organic compound and hydride. The metal generally from group Ⅱ or Ⅲ when the later is made by the elements of group V、Ⅵ. The vapor phase epitaxial growth on substrates follows the method of thermal decomposition reaction, and gains semiconductive chemical compounds of the group Ⅲ-V,Ⅱ-Ⅵ, and their thin layer crystal materials of multiple solid solution. The resistance wire heater mainly used in the equipment of Thomas (Have been acquired by aixtron). The heating wire is generally made of tungsten, and the reflective liner is made of PBN. Resistance heating takes radiation heat transfer as the mainly principal. To achieve a completely uniform temperature distribution, it optimizes structure of
Read more

PBN PG Heater

Image
Introduction The PBN/PG ceramic heater combines three layers of ultra-high purity ceramics, PBN-PG-PBN to produce an advanced micro-ceramic heating element system. Both our PBN heater (Pyrolytic Boron Nitride) and PG heater (Pyrolytic Graphite) are manufactured by high temperature CVD. These high performance elements exhibit outstanding thermal properties in a ceramic heater, including high thermal conductivity and anisotropy.
Read more