Solid Boron Nitride - Grade ZSBN

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Solid Boron Nitride - Grade ZSBN

Key Services & Products

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).