Saint-Gobain's Combat® Boron Nitride Offers an Ideal Solution for Molten Metal Atomization

Amherst, NY - Saint-Gobain Ceramic Materials, Boron Nitride Products, a pioneer in advanced material solutions, announced that its Combat Boron Nitride Grade ZSBN has found successful use in specialty molten metal atomization.

ZSBN is a unique composite of Boron Nitride and Zirconia, a hot-pressed solid that combines the best thermal performance and machinability of hot-pressed boron nitride with the strength and wear-resistance of Zirconia. ZSBN nozzles are made by machining solids of hot pressed micron-size particles, giving a very smooth finish and tight tolerances. Such precision in nozzle formation leads to a more controlled atomization and a tight particle size distribution.

Commonly used nozzles for powder metal atomization of common alloys of Nickel, Copper and Aluminum are made by pressing and sintering large or coarse particles of Alumina, Zirconia or other refractories. These nozzles lack both tight tolerances and clean edges, causing unpredictable atomizationand uneven yields. The result is a wide particle size distribution. Additionally, since these cheaper materials are easily wetted by metals, nozzles frequently clog, further adding to the unpredictable particle sizes or even shutdowns. Because of this uncontrolled atomization, the distribution of the powder is not known until the run is over and the powder has been classified. This ultimately results lower yields, higher scrap rate and additional costly runs.

"A wide particle size distribution may be acceptable for high-volume steel and ferrous powder applications where the breadth of markets and applications accommodates all particle sizes", said Steve Lyle, Product Manager for Combat® Boron Nitride components at Saint-Gobain Ceramic Materials. "However, for specialty powder metals, such low yields, high scrap rates, and frequent clogging add to an already expensive process. ZSBN provides a stable and predictable particle size distribution and 30% higher yields than Zirconia nozzles" added Steve.

With non-wetting properties, sharp edges, and minimized clogging and metal-creep, ZSBN nozzles offer an ideal solution for specialty powder metal atomization.
To learn more about Saint-Gobain Boron Nitride products and capabilities, please visit:

About Saint-Gobain Ceramic Materials - Boron Nitride Products:

Saint-Gobain Ceramic Materials, Boron Nitride Products, is a global leader in providing advanced material solutions using the unique properties of hexagonal Boron Nitride. In the esoteric world of advanced ceramic materials, hexagonal Boron Nitride stands out due to its distinct combination of chemical, mechanical, electrical and thermal properties and functional benefits. Saint-Gobain's Boron Nitride products are built on more than 50 years of expertise in harnessing these properties and transforming hexagonal Boron Nitride into sophisticated solutions to advanced application specific challenges. Saint-Gobain's Boron Nitride products include CarboTherm(TM) thermal management fillers; Combat® solid components, coatings and industrial powders; IDEALUBE® industrial lubricants; PDS® Products N-Type and P-Type planar diffusion sources; and TRES BN cosmetic powders.


Neelam D Kumar

Saint-Gobain Ceramic Materials, Boron Nitride Products

Ph: 716 691 2005


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