Silicon Nitride (Si₃N₄) is a high-performance ceramic known for its exceptional mechanical strength, thermal shock resistance, and wear durability. It is widely used in aerospace, automotive, semiconductor, and bearing applications where reliability under extreme conditions is critical. Our CNC machining services deliver precise, high-quality components made from fully sintered Si₃N₄.
Silicon Nitride is a covalently bonded ceramic composed of silicon and nitrogen. It is characterized by a high strength-to-weight ratio, excellent thermal resistance, and superior resistance to mechanical stress and corrosion—making it ideal for high-speed and high-temperature applications.
We offer CNC machining for high-purity sintered Silicon Nitride (Si₃N₄).
~15 GPa (Vickers Hardness)
3.2 g/cm³
15-30 W/m·K
>10¹⁴ Ω·cm
Excellent
Very Good
700 MPa – 1,000 MPa
>3,000 MPa
Need a specific Silicon Carbide composition? We offer custom material options tailored to your project requirements. Contact us to discuss your needs.
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Challenges & Solutions
Si₃N₄ is one of the strongest engineering ceramics, but it also requires expert handling due to its hardness and brittleness. We utilize:
Tolerances Achievable for Machined Si₃N₄
Silicon Nitride is often chosen when performance under heat, load, or movement is vital.
Industries Served:
To meet strict industry standards, we offer advanced surface treatments for Si₃N₄ parts:
Surface roughness Ra < 0.03 µm.
For mechanical sealing applications.
For permanent identification and part traceability.
Improves handling safety and reduces stress points.
We prioritize operational efficiency to reduce costs and expedite delivery.
Our collaboration with diverse partners, each with unique machinery and expertise, enables us to overcome complex manufacturing challenges.
Backed by 100+ carefully vetted, closely partnered experts, we fulfill your on-demand manufacturing needs at scale.
Every part we ship is meticulously inspected in our in-house lab to ensure it meets consistent design and quality standards.
Alumina (Al₂O₃) is a durable ceramic used for high-strength, high-temperature parts in precision industries.
High fracture toughness and wear resistance.
Excellent thermal conductivity and electrical insulation.
Used for optical and semiconductor applications.
Essential for semiconductor wafer processing.
Looking for more ceramic machining options? Check out our Alumina (Al₂O₃) CNC Machining services.
Looking for high-precision Silicon Carbide (SiC) machining? InstaVoxel delivers expert CNC machining, fast lead times, and superior quality. Contact us today to discuss your project.
