Surface Properties

The surface properties of hexagonal Boron Nitride are another feature of interest in many applications. Pure hBN has unique wetting properties towards liquids, as it is mostly hydrophobic with a partial hydrophilic character. It has a good affinity for oils and polymer resins, which can be leveraged when used as an additive in oil-based lubricants or polymer composites. Pure hBN is also not wetted by most molten metal at intermediate temperatures, which makes Boron Nitride the material of choice for components interacting with molten metals.

Both lubrication and wetting properties can pose challenges when working with hBN. Saint-Gobain Boron Nitride has experience developing surface treatments or functionalization for both powders and solids to enhance the performance of hBN in different applications. Our product managers and technical experts can work with you to help select the best solution for your needs.