SILICON NITRIDE - High purity up to 99.995 percent
Its impressive characteristics include:
- High ductility
- Exceptional resistance to temperature fluctuations
- Outstanding wear resistance
- High degree of strength at high temperatures with a low degree of thermal expansion
H.C. Starck supplies silicon nitrides in a variety of qualities with properties oriented toward the respective, major application areas. These properties are part of a continuing improvement process. They are used as a construction material in mechanical engineering for ceramic parts under high stress as well as in ceramic cutting tools and ceramic bearings (e.g. precision bearings and ball/rolling bearings) among other applications.
Particularly noteworthy is our high-purity silicon nitride type "High
Purity for Photovoltaics". It is produced with an extremely high degree
of purity, greater than 99.995 percent, which means that it only
contains a minimal amount of metallic impurities. As a coating for
crucibles used in the manufacture of silicon wafers for polycrystalline
solar cells and as a precursor for LED phosphors, it helps to increase
the performance of the finished products.