Silicon Nitride Structural Plates
Silicon Nitride Ceramic Component
SKU: FWM/SN-PLT-001
- Material
- Silicon Nitride (Si₃N₄) – Gas Pressure Sintered / High-density sintered
- Size
- Drawing-defined plate dimensions and thickness
- MOQ
- 5 pieces per type
- Applications
- Precision Machinery
Silicon nitride plates for structural supports, fixtures and wear-contact surfaces, distinct from thin electronic circuit substrates.
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Product Description
Silicon nitride structural plates provide support, locating and wear-contact surfaces in fixtures and thermally cycled equipment.
The plate forms a stable working surface for supporting or positioning parts. Silicon nitride combines strength, fracture toughness and wear resistance with low thermal expansion and good thermal shock resistance, making it useful where both mechanical loading and temperature changes occur.
These structural plates differ from thin electronic circuit substrates: their primary role is mechanical support, positioning or wear contact.
Product Features
- Strength and fracture toughness for structural duties
- Hard wear-contact surfaces
- Low thermal expansion for dimensional stability
- Thermal shock resistance for cycling temperatures
- Flat and featured plate configurations for supports and fixtures
Typical Applications
- Structural supports and wear plates in machinery
- Locating and support surfaces in precision fixtures
- Welding fixtures exposed to thermal cycling
- Drawing-based plates for thermal-process equipment
95% Si₃N₄ Typical Properties
| Property | 95% Si₃N₄ | Condition / method |
|---|---|---|
| Density (g/cm³) | ≥3.2 | — |
| Young’s modulus (GPa) | 300 | — |
| Fracture toughness (MPa·m½) | 6.2 | — |
| Flexural strength (MPa) | >720 | 25°C |
| Compressive strength (MPa) | 2200 | 25°C |
| Thermal conductivity (W/(m·K)) | 15–20 | 25°C |
| Coefficient of thermal expansion (10⁻⁶/K) | 3.0–3.2 | 25–1000°C |
| Volume resistivity (Ω·cm) | >10¹⁴ | 25°C |
| Typical maximum material temperature (°C) | 1200 | — |
| Poisson’s ratio | 0.26 | — |
| Dielectric strength (kV/mm) | 16 | — |
| Relative permittivity | 8.2 | 1 MHz; 25°C |
| Dielectric loss tangent | 0.004 | 1 GHz; 25°C |
Available Forms
Representative forms are shown for selection. Send drawing, dimensions, surface finish and quantity for confirmation before quotation. Supports both prototype and batch production.
- Flat plates and blocks
- Precision machined and polished plates
- Custom shapes and thicknesses
Packaging & Shipping
Packing and shipment arrangements are selected for the confirmed component geometry and order requirements.
| Item | Details |
|---|---|
| Packaging & shipping | Individually protected, cushioned and packed in export cartons or wooden cases. Other commercial terms are confirmed in the quotation. |
| Payment terms | T/T / Western Union / PayPal; 50% advance payment, 50% balance before shipment |
| Shipping methods | Sea freight / Air freight / Door-to-door courier |
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