Products Description
A silicon nitride nozzle-also referred to as a Si₃N₄, silicon nitride ceramic, or full ceramic Si3N4 component-is a critical industrial part. It is manufactured from the high-performance engineering ceramic universally known as silicon nitride (chemical name Si3N4), called nitruro de silicio in Spanish, nitrure de silicium in French, and Siliziumnitrid in German. This advanced nitride ceramic leverages a unique combination of Si3N4 properties, demonstrating exceptional performance under extreme conditions, far surpassing traditional materials. It has become indispensable in high-end manufacturing.
| Product name | Silicon nitride nozzle |
| Color | Customized according to the client's requirements |
| size | Customized according to the client's requirements |
| Packaging | Carton /Pallet/Wooden case (According to client requirement ) |
| Delivery time | Standard Product-Within 3 days |
| Items Design | According to the client's drawing or samples |
| Features | Good quality, low price, Multiple factories, deliver to you based on the one closest to your location |
| Application | Industrial Ceramics |
| Certificate | ISO, CE |
Ceramics performance parameter
| Number | Performance | Unit | Silicon Nitride |
| Si3N4 | |||
| 1 | Density | g/cm3 | 3.1~3.26 |
| 2 | Flexural strength | MPa | 700~900 |
| 3 | Fracture toughness | MPa·m1/2 | 6.4 |
| 4 | Dielectric constant | εr(20℃,1MHz) | / |
| 5 | Hardness | GPa | 15~19 |
| Hardness | HRC | 79-83 | |
| 6 | Volume resistivity | Ω·cm(20℃) | 10 14 |
| 7 | Elastic modulus | GPa | 320 |
| 8 | Coefficient of thermal expansion | ×10-6/k | 3.0~3.2 |
| 9 | Compressive strength | MPa | 2300 |
| 10 | Abrasions | g/cm2 | 0.01 |
| 11 | Thermal conductivity | W/m×k(20℃) | 77~87 |
| 12 | Poisson's ratio | / | 0.24 |
| 13 | Insulation strength | kv/mm | 20 |
| 14 | Temperature | ℃ | 2200 |
Core Performance & Material Properties
The outstanding performance of silicon nitride parts stems from the intrinsic properties of the Si3N4 material, achieved through advanced processes like silicon nitride sintering or reaction bonded silicon nitride. Primary advantages include:
- Excellent High-Temperature & Thermal Shock Resistance: Sintered silicon nitride maintains extreme strength and hardness above 1200°C, resisting oxidation and softening. Its low thermal expansion and good conductivity allow it to withstand severe thermal cycling without cracking.
- Exceptional Wear Resistance: With a Vickers hardness often between 1400-1600 HV, it offers superior resistance to abrasive particles, slurries, and powders, ensuring a long lifespan for components like ceramic bearings and nozzles.
- Outstanding Corrosion Resistance: It exhibits excellent chemical inertness against most acids, alkalis, molten metals, and salts. This makes silicon nitride coating, tubes, and crucibles valuable in harsh environments.
- High Strength & Toughness: Among advanced ceramics, it boasts high fracture toughness (6-8 MPa·m¹/²), offering strong resistance to mechanical impact and stress.
- Low Density & Self-Lubricity: With a density of ~3.2 g/cm³, it is lightweight. Its surface has self-lubricating characteristics, beneficial for fluid flow in nozzles and bearings.
Primary Applications
- Metal Atomization & Spraying: Nozzles for producing fine metal powders, resistant to molten metal erosion.
- High-End Sandblasting & Surface Treatment: Nozzles offering wear resistance tens to hundreds of times greater than standard materials.
- Laser Cutting & Welding: Gas flow nozzles and protective components in cutting heads.
- Chemical & Petrochemical: Components for handling corrosive chemicals and catalysts.
- Non-Metal Processing: Nozzles for abrasive waterjet cutting.
- High-Temperature Engineering: Used in special burners, fuel injectors, and aerospace test nozzles.
- Semiconductor & Electronics: Silicon nitride substrates, coatings, and parts for wafer handling and processing due to high purity and stability.
- Advanced Components: Silicon nitride ceramic bearings, ballistic armor, fibers/nanofibers for composites, and biomedical implants.
quality control
We strictly follow ISO 9001 quality management system to ensure consistency:
- 100% raw material inspection
- Advanced hot-pressing production lines
- In-house testing: density, hardness, microstructure analysis
- Third-party certifications (SGS, CE, ROHS available upon request)
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