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Silicon nitride

What is it?

Silicon nitride is a monolithic ceramic displaying exceptional hardness and resistance to fracturing, as well as other properties that make it extremely valuable in a huge number of applications.


Thanks to its toughness, thermal stability and resistance to wear, this material is used to make tools for cutting, sharpening and extrusion, and for specific high-speed mechanical processes on cast iron.


Silicon nitride is exceptionally effective in applications subject to thermal shock and stress due to high loads (e.g. welding rods); it is particularly useful in processes carried out at very high temperature requiring appropriate electrical insulation; it is also an excellent solution in hydraulics and extrusion, being a key product for tools, nozzles, tubes and conduits.

Properties of silicon nitride:

  • Extremely low density
  • High resistance to breakage
  • High resistance to flexion
  • Excellent resistance to thermal shock
  • Lightweight

Products made with silicon nitride:

  • High-resistance automotive components
  • Components for electric signal transmission
  • Tools for plastics processing
  • Cutting and sharpening tools
  • Welding rollers
  • Components for pumps and valves
  • Nozzles
  • Tubes, conduits, couplings
  • Seal rings and bearings

Settori di utilizzo

Kéramo produces advanced ceramic components based on silicon nitride (Si3N4) for the jewellery, electricity, electronics, automotive, textile and nuclear sectors. The high quality of our products, the expertise acquired in more than 50 years of operation and the bespoke nature of our services make Kéramo the perfect partner for the supply of advanced zirconium oxide ceramics to industry.

Processing of silicon nitride

Kéramo has the solution for you

Do you think silicon nitride is the right material for your business? Are you seeking to develop new products in technical ceramics? Kéramo can help! Complete the form, indicating your needs and, if you like, attach your project: our experts will evaluate your request and find the solution you’re looking for.
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