Silicon Nitride Ceramic Clamp Corrosion Resistant Custom Ceramic Parts Custom
Custom Si3N4 Silicon Nitride Ceramic Clips High Fracture Toughness Anti‑Corrosion Industrial Ceramic Fastener Clamps
Silicon Nitride (Si₃N₄) Ceramic Clips
These premium silicon nitride ceramic clips are engineered for demanding industrial fastening and positioning applications. Made of gas‑pressure‑sintered silicon nitride ceramic, they combine high strength, great fracture toughness and superior surface hardness, outperforming metal and ordinary alumina ceramic clamps under extreme operating conditions.
Si3N4 Ceramic Parts are a man made compound synthesized through several different chemical reaction methods. they are pressed and sintered by well developed methods to produce a ceramic with a unique set of outstanding properties. The material is dark gray to black in color and can be polished to a very smooth reflective surface, giving parts with a striking appearance.
✅ Excellent High‑Temperature Performance
Continuous working temperature up to 1200 °C. Outstanding thermal shock resistance, stable performance under rapid temperature rise and drop, no cracking or deformation during cyclic heating‑cooling cycles.
✅ Superb Wear & Abrasion Resistance
High Vickers hardness, low friction coefficient and inherent self‑lubricating property. Greatly reduces abrasive wear under repeated clamping and friction, significantly extending service life compared with metal fasteners.
✅ Superior Chemical Inertness
Resistant to most acids, alkalis and molten metal erosion. No chemical contamination for precision processing, semiconductor and high‑purity production environments.
✅ High Dimensional Stability
Low thermal expansion coefficient. Clamping force remains consistent under temperature fluctuations, avoiding loose clamping caused by thermal expansion‑contraction deformation.
✅ Light‑Weight & High Mechanical Toughness
Lower density than steel, with remarkable fracture toughness, less risk of brittle fracture compared with general oxide ceramics. Precision machined to tight tolerances for accurate fitting and installation.
Silicon Nitride Material Sheet
| Properties | Units | Silicone Nitride | |
| Mechanical | Density | gm/cc | 3.2 |
| Porosity | % | 0 | |
| Flexural Strength | Mpa | 830 | |
| Compressive Strength | Mpa | 2500 | |
| Elastic Modulus | Gpa | 310 | |
| Poisson's Ratio | / | 0.27 | |
| Hardness | kg/mm2 | 1580 | |
| Fracture Toughness KIC | Mpa *m 1/2 | 6.1 | |
| Thermal | Heat Conductivity | W/ m*k | 30 |
| Coefficient of Thermal Expansion | 10⁻⁶/K | 3.3 | |
| Specific Heat | j/kg*K | / | |
| Thermal Shock Resistance | °C | / | |
| Max UseTemperature | °C | 1400 | |
| Electrical | Dielectric Strength | ac-kv/mm | / |
| Dielectric Constant | / | 8 | |
| Loss Tangent | / | / | |
| Volume Resistivity | ohm•cm | >1014 | |
Features:
● High Hardness
Silicon nitride exhibits extremely high hardness, making it suitable for fields such as wear-resistant and cutting tools.
● Excellent Wear Resistance
Silicon nitride ceramic exhibits outstanding wear resistance, making it suitable for applications in high-wear environments.
● Superior Insulating Performance
Silicon nitride ceramic possesses excellent electrical insulation properties and chemical stability, making it widely used in the electronics and semiconductor industries.
● High Temperature Stability
It can maintain stability in high-temperature environments, making it suitable for applications like high-temperature heaters and furnaces.
Applications:
Rotating ball bearings and rollers bearings
Cutting tools
Engine components: valves, rocker arm pads, seal faces
Induction heating coil supports
Turbine blades, vanes, buckets
Welding and brazing jigs
Heating element components
Crucibles
Metal tube forming rolls and dies
TIG / Plasma welding nozzles
Weld positioners
Precision shafts and axles in high-wear environments
Thermocouple sheaths and tubes
Semiconductor process equipment
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