Silicon Nitride Plates
Silicon Nitride Ceramic Component
SKU: FWM/SN-PLT-001
- Material
- Silicon Nitride (Si₃N₄) – Gas Pressure Sintered / High-density sintered
- Size
- Custom sizes available (maximum typical size ≈ 300 × 300 mm)
- MOQ
- 5 pieces per type
- Applications
- Precision Machinery
Silicon Nitride Plates are high-performance fully dense ceramic plates manufactured by isostatic pressing and high-temperature sintering.
Send drawing, dimensions, surface finish and quantity for confirmation before quotation. Supports both prototype and batch production.
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Product Description
Review representative product forms and application context below. Final geometry and acceptance criteria are confirmed from the drawing and operating conditions.
Silicon Nitride Plates are high-performance fully dense ceramic plates manufactured by isostatic pressing and high-temperature sintering. They offer exceptional mechanical strength, high fracture toughness, excellent wear resistance and outstanding thermal shock resistance, with strength retained up to 1200 °C.
The material is non-wetting and non-reactive to many molten metals (aluminum, lead, tin, silver, brass, nickel, etc.), making it suitable for both room-temperature and high-temperature wear/corrosion applications, as well as rapid temperature cycling environments.
Manufacturing process (source record): Superfine Si₃N₄ powder → isostatic pressing → high-temperature sintering → precision machining and polishing → final inspection.
Quality control (source record): Dimensional inspection, density/porosity check, surface quality verification and batch traceability.
Data status: the source record is not supplier-verified. Numerical values are typical engineering references, not guaranteed product specifications; final values require grade, drawing and test-basis confirmation.
Product Features
- High mechanical strength retained up to 1200 °C
- High fracture toughness and hardness
- Outstanding wear resistance and good self-lubricating property
- Low thermal expansion and excellent thermal shock resistance
- Good resistance to acids, alkalis and oxidation
- Fully dense with near-zero porosity
- Can be machined to tight tolerances and polished surfaces
Typical Applications
- Structural and wear-resistant plates
- Bearing components, cutting tools and fixtures
- Molten metal handling and thermocouple protection related parts
- Welding jigs, nozzles and high-temperature fixtures
- Precision components requiring thermal shock resistance and dimensional stability
Technical Data
| Property | Unit | Typical Value |
|---|---|---|
| Density | g/cm³ | ≥ 3.20 |
| Apparent porosity | % | 0 – 0.2 |
| Elastic modulus / Young’s Modulus | GPa | 300 – 320 |
| Flexural Strength @25°C | MPa | 700 – 900 |
| Compressive Strength @25°C | MPa | > 1500 – 2200 |
| Fracture Toughness | MPa·m¹/² | 6.2 – 9.0 |
| Vickers Hardness | GPa / HV | 15 – 16 GPa / ≈1500 HV |
| Poisson’s Ratio | — | 0.25 – 0.26 |
| Linear expansion coefficient | ×10⁻⁶/°C | 3.0 – 3.3 |
| Thermal Conductivity @25°C | W/(m·K) | 15 – 25 |
| Max. Working Temperature | °C | 1200 |
Typical reference values for material selection only. Final specifications are confirmed against drawing, grade and operating conditions. Values are typical reference data compiled from industry sources and may vary with grade, geometry and test method. Final specifications confirmed against drawing and operating conditions.
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. Terms confirmed in quotation. |
About FreeWill Material
FreeWill Material supplies technical ceramic components for demanding industrial applications. Our product range includes silicon carbide, silicon nitride, alumina, zirconia and other engineered ceramic materials.
We work with qualified manufacturing resources in China to support material selection, drawing-based customization, production coordination, inspection documentation and export delivery. Component feasibility, tolerances and material grades are reviewed according to the customer's drawings and operating conditions.
Our focus is to provide international buyers with clear technical communication, practical sourcing support and responsive quotation service for custom ceramic components.
- Drawing-Based Customization
- Material Selection Support
- Inspection Documentation
- Export Coordination