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 Boron Nitride Paints
 Boron Nitride Powder
 Carbide Coatings
 Graphite Monochromators
 Heaters & Heater Assemblies
 High Thermal Conductivity Graphite & Composites
 Hot Pressed Boron Nitride Composites
 Hot Pressed Boron Nitride Shapes
 Pyrolytic Boron Nitride
 Pyrolytic Graphite
 Titanium Diboride Powder
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Hot Pressed Boron Nitride Composites

Momentive’s boron nitride (BN) composites incorporate BN in proprietary compositions with other refractory materials and are ideally suited for the harsh environments of molten metal applications of non-ferrous and ferrous alloys.  These ceramic composites are machinable, thermal shock resistant, and chemically compatible in a wide range of environments.

 

Hot Pressed Boron Nitride Composites

 

Composite Grades

  • AC6043 — Titanium Diboride/ Boron Nitride
    Machinable with better oxidation resistance and improved strength compared to common furnacing materials such as graphite.  Used in replacement parts for areas of high oxidation where longer life and much lower erosion rates are needed such as vents, plates, stacks, crucibles, and capsules.
  • BIN77 — Aluminum Nitride/ Boron Nitride
    Machinable with high mechanical strength and good electrical insulation properties.  Resists moisture pickup, spalling, cracking, with good abrasion resistance. Often used in vacuum deposition processes where purity and thermal stability are critical.

 

Typical

Properties

  AC6043 

BIN77 

   Density (g/cc) 

2.78 

2.43 

   Flexural Strength
     @25°C
     @1500°C 


13,000
2,400 


18,000
4,000 

   Sonic Modulus
   (psi x106

15.5 

4 to 9 

   CTE
   (in/in/°Cx10-6

5 to 6 

   Thermal Conductivity
   (W/m°K) @25°C 

70 

25 to 40 

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