Silicon for ceramics

Elkem produces a wide range of silicon qualities for the ceramic industry and we continuously work to fulfill our ceramic customers’ needs. Over the years we have developed a product range with both beneficial particle size distributions and chemistry for our ceramic customers.



Areas of silicon application in ceramics

  • Silicon for kiln furniture
  • Silicon for ceramic brake discs
  • Silicon for heating elements
  • Silicon for ceramic filters
  • Silicon for ceramic body armour
  • Silicon for silicon nitride production
  • Silicon for jet engines

Silicon for kiln furniture

Elkem has offered silicon for production of kiln furniture (Si3N4-bonded SiC, SiSiC, Si3N4) since the late 1980’s. Our silicon is customised to provide the best possible performance for your specific process, such as for slip casting or silicon infiltration. We have extended our product portfolio over the years to meet new and challenging customer requirements.

Silicon for ceramic brake discs

Elkem offers silicon for use in production of ceramic brake discs, both within the automotive and the aircraft industries. Ceramic matrix composites (CMC’s) such as carbon fibre-reinforced silicon carbide (C-SiC) offer superior properties at high temperatures vs. traditional iron discs. Our silicon is used in the liquid silicon infiltration (LSI) step during production of ceramic brake discs.

Silicon for heating elements

Elkem offers silicon suitable for production of heating systems such as heating elements made of silicon infiltrated silicon carbide (SiSiC) and molybdenum disilicide (MoSi2). Radiant tubes (SiSiC) represents another example. Our silicon is used in the liquid silicon infiltration (LSI) step during production of SiSiC components.

Silicon for ceramic filters

Elkem offers silicon for use in production of ceramic filters, such as diesel particle filters within the automotive industry and filters for wastewater purification. Our silicon can be tailor-made to meet customers’ specific needs.

Silicon for ceramic body armour

Elkem offers silicon for use in production of ceramic body armour (SiSiC, Si3N4, Si3N4-bonded SiC). Our silicon is used in the liquid silicon infiltration (LSI) step during production of reaction-bonded silicon carbide bodies (SiSiC).

Silicon for silicon nitride production

The main production process for silicon nitride powder is direct nitridation of silicon powder (3Si + 2N2 → Si3N4). Elkem offers a range of silicon powders suitable for the direct nitridation process. We are now offering silicon qualities as high as 99.99 % to meet new customer requirements.

Silicon for jet engines

Elkem offers silicon for use in production of components for jet engines. Our silicon is used both for ceramic matrix composites (CMC’s), such as SiSiC, and silicides, such as MoSi2. We are now offering silicon qualities as high as 99.99 % to meet new customer requirements.

Silgrain® grades for ceramics

Our range of Silgrain® products offers a variety of purities and sizes - contact us and we will recommend a product for your ceramic application.