BORIDES - Conductivity and hardness for use in standard and special applications

Borides are chemical compounds comprised of the element boron and a second reactant, usually a metallic or non-metallic element. For this reason, metal borides are differentiated from non-metal borides.

H.C. Starck produces an entire range of metal borides. They are characterized by chemical and physical properties that allow them to be used as high-performance materials in a wide variety of (special) applications.

Titanium diboride for hot-pressed composite materials with outstanding electrical conductivity

Probably the most important metal boride from a technical perspective is titanium diboride (TiB2). A transition metal boride, it features exceptional hardness, a high melting point, and outstanding electrical conductivity. These properties qualified titanium diboride for use in hot-pressed composite materials with exceptional electrical conductivity. Examples include evaporation boats for continuous aluminum metallization, crucible material for non-ferrous metals, ceramic shell molds used in Hall-Héroult cells in aluminum production and hot-pressed armor plates.

Other borides produced by H.C. Starck

Rare earth metal borides, such as lanthanum hexaboride (LaB6), are exceptional metallic conductors and outstanding electron emitters. For this reason, they are employed in plasma technology and for high-performance electrodes in electron microscopes, among other applications.

There is hope that in the future magnesium diboride (MgB2) will offer a wide variety of industrial uses, e.g. in superconductive power transmission or as a magnetic energy store. It has superconductive properties with a high transition temperature of 39 Kelvin.

Our wide spectrum of boride products includes chromium (di)boride (CrB, CrB2), zirconium diboride (ZrB2), silicon hexaboride (SiB6) and aluminum diboride (AlB2).

Product range
Application examples
Titanium diboride
Hot-pressed composite materials with outstanding electrical conductivity: evaporation boats, crucible material for non-ferrous metals, ceramic shell molds, armor plates
Lanthanum hexaboride
For use in plasma technology and for high-performance electrodes in electron microscopes, metal matrix composites (MMCs), cutting tools and cermets for machining aluminum
Chromium (di)boride
For use in plasma technology and for high-performance electrodes in electron microscopes, metal matrix composites (MMCs), cutting tools and cermets for machining aluminum
Zirconium diboride
Antioxidant in carbon-bonded refractory ceramics, neutron absorber

In addition, our boride portfolio includes magnesium diboride (MgB2), aluminum diboride (AlB2) and silicon hexaboride (SiB6), among others.

Support along the entire process chain

To help ideas become successful solutions, we support our customers as partners in the development and optimization of materials, products and processes. Our application technology department has outstanding materials expertise, detailed knowledge of metallurgical and chemical processes and long-term experience in numerous innovative markets, applications areas and technologies. Moreover, we have an accredited chemical analysis department that monitors the manufacture of our products to precise specifications.

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