Boron Nitride Ceramic

Boron Nitride Ceramic is a more fine industrial ceramic used in the form of both solid and powder materials. It is useful in unusual ways - like having an excellent heat capacity and strong thermal conductivity, which means it is simple to be machined, as well as exhibiting very good electrical insulating characteristics, like low dielectric constant and excellent dielectric capacity.

White graphite is often referred to as BN Boron Nitride in its solid state as it has a microstructure close to that of graphite. Though graphite does not have a higher oxidation temperature, Hexagonal Boron Nitride is an outstanding electrical insulating parts that have a higher oxidation temperature. Heat conductivity and high thermal shock resistance are among the qualities of good thermal material. This thermal material can be produced into different forms at particular tolerances and machined to the correct size. When the Boron Nitride solid has been machined, it can be directly used, no any further heat treatment or firing procedures is needed.

A wide number of Boron Nitride (BN) Ceramic grades are availablly to work in oxidizing atmospheres up to 900 degree C. It is normally dry and does not contain any chemicals other than molten metals or slags. It can be done for all the molten metals from titanium, sodium, lithium, silicon, boron, tin, germanium, and copper.When applied to inert and reducing environments, the BN-2000 grade of Hexagonal Boron Nitride Ceramic grades can acquire resistance up to 2,000 degree C. Boron Nitride Parts are often used as insulators positioned near or on electrodes that are in contact with tungsten and graphite at the corresponding temperatures.

BN Boron Nitride by UNIPRETEC is available in various solid grades, each of which is described by its binder and composite: BN-2000, BN-2300, BN-2500, BN-2800 and BN-3000.

Popular Applications

Melting Crucibles

Gas Atomization Nozzles

High Temp. Furnace Parts

Microwave Plasma Environment

Material Properties

∆ The above data is offered for reference and comparison only, exact data will vary depending on manufacturing method and part configuration.

More Information

Boron nitride is a crystal composed of nitrogen atoms and boron atoms. The chemical composition is 43.6% boron and 56.4% nitrogen, with four different variants: hexagonal boron nitride (HBN), rhombohedral boron nitride (RBN), cubic boron nitride (CBN) and wurtzite boron nitride (WBN). Among them, HBN and CBN are two common forms. The characteristics of HBN are as described above, but CBN is a material with a very different form from HBN. HBN can be used as a raw material to synthesize CBN. In order to avoid confusion, here is a brief explanation of CBN. Cubic boron nitride is a synthetic material whose hardness is second only to diamond. It is a super-hard material and is synthesized from hexagonal boron nitride and a catalyst under high temperature and high pressure. CBN is available in black, amber, and metal-plated on the surface. The particle size is usually below 1mm. It has high thermal stability and chemical inertness, so it is generally used as a material for making super-hard tools.

Hot Tags: boron nitride ceramic, China, suppliers, manufacturers, factory, wholesale, price, for sale