Home Hexagonal Boron Nitride - Boron-Nitride-Coating Grade A

Interceram 06/91 The literature tells us that hexagonal boron nitride (BN) shows a poor wettability by metallic melts (Al, Mg), slags, and nonmetallic melts such as glass and cryolith. At the same time, it represents a solid lubricant that - as opposed to graphite and molybdenum disulphide - is thermally stable even at high temperatures. Thus, boron nitride is an excellent refractory basic material for high-temperature parting materials and lubricants.  

With Boron-Nitride-Coating Grade A from the Büro für angewandte Mineralogie (Tönisvorst, Germany), a hexagonal boron nitride-based coating and separating agent is available in the form of a suspension with which metallic and ceramic substrates can be coated. It is stable up to 1000°C in air, applicable up to 1800°C in an inert atmosphere, and can be applied like a glaze with a brush or a spray gun.  

Areas of application for this product are found in the laboratory as well as in production. The product is produced on a water basis and is thus not harmful to the environment. It also contains no organic components such as fats or oils which means no products are released when the temperature is raised. It is not considered hazardous and, in accordance with the hazardous materials ordinance, does not have to be labeled as such.

from: Interceram 40 (1991) 6

© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
These recommendations are believed to be correct. However, no guarantee of their accuracy is given. Therefore, purchasers shall make their own tests to determine suitability for their use. These products are offered for industrial and related uses (e.g. research and development) only. However the user must take the necessary precautions appropriate for products containing chemicals. This description does not imply the absence of any patents, the responsibility whatsoever solely rests with the user.