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  Solid Boron Nitride - Grade ZSBN  

 

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MACOR®

Machinable Glass Ceramic

Machinable with ordinary metalworking tools & combining the performance of a technical ceramic with the versatility of a high performance plastic.

 

 

 

A completely unique material, Solid Boron Nitride solves problems that could not possibly be tackled with other compositions such as Al2O3 or SiC.

 

Solid Boron Nitride fights off temperatures over 2,000°C and, depending on the grade, carries a dielectric strength of nearly 1000 volts/mil. Hot pressed in billet form, Solid Boron Nitride can easily be machined into rods, bars, plates and even custom shapes.

 

The highly exceptional characteristics of Solid Boron Nitride make it ideal for fixture or jig materials for sealing or brazing operations in induction, vacuum and atmosphere furnaces; for molten metal crucibles; heat sinks and high temperature insulators.

 

Solid Boron Nitride - Grade ZSBN

 

Developed for demanding applications requiring the combination of thermal conductivity, high wear resistance and boron nitrides corrosion resistance, Grade ZSBN boron nitride is a composite material combining the best thermal performance and machinability characteristics of hot-pressed boron nitride with the strength and non-reactivity of silicon carbide and zirconia.


Grade ZSBN is a uniquely high-performing solid that is especially suited for molten metal applications such as continuous casting breakrings where wear resistance and thermal conductivity are essential.

 

Key Properties


Chemically - Unparalleled resistance to molten metal wetting due to boron nitride content.

Thermally - Excellent high temperature operation and thermal shock resistance.

Mechanically - Excellent wear resistance and increased strength from zirconia and a small amount of silicon carbide. This feature, unique to ZSBN, results in remarkable corrosion resistance over a wide range of temperatures.

Machinability - Grade ZSBN is easily machined, even to complex shapes and forms, quickly and inexpensively. Machining tolerances of 0.002” or better are achievable.

 

Applications

 

  • Break rings

  • Components

  • Continuous casting

  • Crucibles

  • Deck plates

  • Heat treatment fixtures

  • High temperature bearings

  • High temperature mechanical components

  • High temperature valves

  • Jigs

  • Molds

  • Motel metals and glass casting

  • Muffles

  • Nozzles for transfer or atomization

  • Side dams

  • Spacers

Product Data

 

Thermal Conductivity (W/MºC) Perpendicular Parallel
25°C 40.21 22.62
316°C 29.39 15.46
437°C 27.16 13.98
557°C 24.96 13.32
711°C 23.11 12.78
918°C 21.88 11.65
Like pure boron nitride, the ZSBN crystal structure orients itself during hot pressing.  Therefore, many physical properties of Combat® ZSBN are anisotropic and are reported as a function of the orientation of  the piece relative to hot pressing (perpendicular or parallel). 

 

Solid Boron Nitride - Grade A

Solid Boron Nitride - Grade AX05

Solid Boron Nitride - Grade HP

Solid Boron Nitride - Grades M & M26

Solid Boron Nitride - Grade ZSBN

Boron Nitride Coatings

Boron Nitride Industrial Powders

Boron Nitride Aerosol Sprays

 
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