From high-purity Si₃N₄ powder to precision sintered components — we help automotive, semiconductor, power-electronics, solar, bearing and medical manufacturers push performance further with ceramics that resist heat, wear and corrosion.
Silicon nitride (Si₃N₄) is a covalent ceramic that combines the best of metals and ceramics: hardness and wear resistance of a ceramic with toughness and thermal-shock resistance close to some alloys.
Extremely low thermal expansion (~3.0×10⁻⁶/K) lets parts survive rapid heating and cooling that would crack most ceramics and metals.
Hardness of 1500–1800 HV and excellent erosion resistance make it ideal for bearings, nozzles and cutting tools.
Stable against most acids, alkalis and molten non-ferrous metals — perfect for metallurgy and chemical duty.
Electrical insulator with tunable thermal conductivity (15–80 W/m·K) for semiconductor and power-electronics use.
~60% the density of steel at comparable or higher strength — critical for high-speed rotating parts.
Inert and wear-resistant for orthopedic joints and medical instruments.
Vertically integrated production — synthesis, forming, sintering and finishing under one quality system.
Silicon nitride serves some of the most demanding industries on the planet.
Turbocharger rotors, glow plugs, valve train and power-module substrates.
Learn more →Our laboratory validates density, phase composition, microstructure, strength, toughness and thermal properties using SEM, XRD, laser-flash and Weibull statistics — so the part you receive performs like the part we qualified.
Silicon nitride (Si₃N₄) is used where high strength, hardness, thermal-shock resistance and corrosion resistance are required together: hybrid bearing balls, turbocharger rotors, semiconductor wafer-handling and CVD parts, power-electronics substrates (AMB), solar PV hardware, metallurgical nozzles and riser tubes, and orthopedic implants.
In terms of fracture toughness and thermal-shock resistance, silicon nitride generally outperforms alumina and is comparable or better than zirconia in high-temperature and thermal-cycling service, while staying lighter than both.
Yes. We form parts by dry pressing, isostatic pressing, slip casting and injection molding, then sinter by GPS/HIP. Send your 2D/3D drawings and tolerances and we will advise the optimal route.
We work to ISO 9001 and test against ASTM, ISO and GB methods for density, strength, toughness, hardness, phase and microstructure, with full traceability per batch.
Send us your drawing, environment and target life — we'll return a grade, process and quote.
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