AMPERIT® OXIDES - Maximum reliability through excellent wear protection, and chemical and thermal stability

Oxide powders for thermal spraying form hard and wear resistant coatings capable of protecting parts even at extreme temperatures Furthermore they can provide not only thermal but also electrical insulation.

Product portfolio and applications

H.C. Starck offers a wide range of thermal spray oxide powders including zirconium oxide (ZrO2), aluminum oxide (Al2O3), titanium oxide (TiO2) and chromium oxide (Cr2O3).

Zro2Y2O3 Powder
AMPERIT® aluminum oxide produces a hard and wear resistant, electrically insulating coating. Typical areas of application include ink ductors, print rolls and press rolls used for paper manufacturing, thread guides used in textile machines and household appliances.

AMPERIT® chromium oxide produces a hard and extremely wear resistant coating insoluble in acids and alcohol. It is suited for end face mechanical seals in mechanical engineering, components used in the textile industry, and roller bearing rings and rollers used in the printing industry. 

AMPERIT® oxides containing yttrium stabilized zirconium oxide are extremely resistant to high temperatures, thermal cycling and hot gas corrosion, making them well-suited for high-temperature applications such as aviation and industrial gas turbines or combustion engines.

AMPERIT® oxides for high-temperature fuel cells

H.C. Starck has a new range of AMPERIT® oxides developed especially for fuel cells. AMPERIT® oxides with manganese were specially designed for atmospheric plasma spraying. AMPERIT® 860 (lanthanum strontium manganese oxide, LSM) forms a dense and almost non-porous coating to protect interconnectors from chromium vaporization. Its fine structure provides a smooth surface; high purity ensures low-ohmic resistance. AMPERIT® 865 (manganese-cobalt-iron oxide, MCF) is ideal for protecting parts from chromium vaporization, in particular when using ferritic steel.

In addition to AMPERIT® oxides, H.C. Starck offers fine powders that can be applied using paste printing, strip casting or suspension sprays. For example, H.C. Starck’s fine AMPERGY® lanthanum strontium cobalt ferrite (LSCF) and LSM powders can be applied on SOFC cathodes by means of air brush coating.

Thermal spraying of suspensions rather than powders can reduce surface roughness at minimized layer thicknesses of only 10–50 μm. Our expertise gained in various partnerships and collaborations with research institutes and customers makes us the preferred contact when it comes to developing suspensions for thermal spraying.

In-house testing laboratory

H.C. Starck’s expertise in application technology and materials, and our wide-ranging product portfolio give us the necessary tools for providing technical support and customized solutions – from developing and optimizing powders to analyzing coating layers. Our Spray Lab – the heart of our thermal spray application technology – has the competence needed to develop custom solutions for everything from powders to complete coatings. Long-term partnerships with OEMs (original equipment manufacturers) and manufacturers of spraying system as well as joint research and development activities make H.C. Starck an experienced and reliable partner for your materials supply.