Boron Nitride Ceramics

Boron nitride (BN) has high melting point, thermal conductivity, good insulation, high bending strength, good thermal shock resistance and chemical corrosion resistance. 

  • Description
  • Specifications
  • Boron Nitride Ceramics

    Boron nitride (BN) has high melting point, thermal conductivity, good insulation, high bending strength, good thermal shock resistance and chemical corrosion resistance. At high temperature, BN still has stable high frequency dielectric properties. The most unique advantage of BN is that it can be machined into porcelain with complex shape and high precision. Therefore, it is widely used in composite conductive ceramic evaporation boat, high temperature crucible, sputtering target, high temperature high frequency and plasma arc electric insulator, electronic module heat dissipation device, traveling wave tube collection and radiator, transistor heat sink, Semiconductor packaging heat dissipation substrate, high frequency induction furnace materials and atomic reactor structural materials, protective Photoelectric radiation, chemical radiation, nuclear radiation materials and radar transfer windows.

    The main results are as follows:

    1) BN is the only machinable ceramic with a precision of 0.01mm;

    2) the insulation strength is 2300v / cm,8 times of Al2O3, the RT resistance is more than 1014 Ω. Cm at 1000 ℃.

    3) the melting point is as high as 2800 ℃.

    4) excellent heat resistance impact, from 20 ℃ to 1000 ℃ return 100 times without damage;

    5) General metals (iron, copper, aluminum, lead, etc.), rare earth metals, precious metals, semiconductor materials (germanium, silicon, potassium arsenide), glass, molten salts (crystal, fluoride, slag), inorganic acids, alkali. 

    Typical application

    High purity boron nitride crucible for molten metal

    Nitride phosphors, silicon nitride, aluminum nitride and other ceramics and powder sintering crucible, sintering board.

    Electrode Insulation and Protective Pipe for High temperature Furnace

    Boron nitride insulation assembly for polysilicon ingot furnace

    Boron Nitride Ceramics Properties

    Color

    White

    Density

    2.0g/cm3

    Melt Point

    2800

    Bending Strength

    35MPa

    Thermal Conductivity

    75 W/m.K

    Thermal expansion coefficient

    -1.0~2.5×10-6 K-1

    Application Tem(Max)

    2200(inert)

    Volume resistivity

    1014ΩNaN

    Dielectric constant

    4.0@1Hz

     Hardness(Mohs)

    2