Zhejiang Cerafra manufactures high-purity silicon nitride powder through a direct nitridation process built on strict, standardized process control. Silicon nitride's strong covalent bond structure gives it an unmatched combination of high strength, high thermal conductivity, wear and corrosion resistance, and excellent thermal shock resistance across a working range of -200°C to 1600°C — making it one of the most versatile technical ceramics available.
Our powder line covers six grades tuned for different sintering routes and end applications:
All grades are produced from high-purity silicon and tested against national and international standards (X-ray diffraction, atomic absorption, laser particle size analysis) with full technical data sheets available on each product page.
Cerafra's silicon nitride powder is the upstream material behind our silicon nitride components — including guide pins, thermocouple protection tubes, bearing balls and cutting tools — serving the semiconductor, automotive, energy, metallurgical processing and precision processing industries. Backed by Cerafra's R&D and quality systems, each grade is engineered for consistent sintering activity, purity and particle size control.
Request a quotation to get technical data sheets and pricing for your application.
