Silicon Nitride Nozzles High Hardness And High Strength Si3N4 Nozzles

Overview of Silicon Nitride Nozzles

Silicon nitride nozzles are made of advanced ceramic parts or Silicon nitride (Si₃N₄) and are known for their advanced mechanical, thermal, and chemical properties. These nozzles are designed for high-performance applications that require durability, precision and reliability under extreme conditions.

Features of Silicon Nitride Nozzles

High strength and durability: Silicon nitride nozzles have significant compressive and bending strength, ensuring they can withstand harsh industrial environments.

Excellent thermal performance: stable at high temperatures, continuous up to 1200°C, intermittent up to 1400°C, minimal thermal expansion, excellent thermal shock resistance.

Chemical inactivation: Resistant to corrosion of acids, bases, and molten metals, thus becoming a risible choice in an invasive chemical environment.

Low density: Compared with metal nozzles, the density of this nozzle is about 3.20 g/cm³, and the weight decreases while the strength does not decrease.

Self-Lubricating: The inherent lubricity reduces friction, is beneficial for moving parts and leads to reduced maintenance needs.

Electrical Insulation: Excellent electrical resistivity makes silicon nitride nozzles suitable for electrical insulation applications.

Fracture Toughness: Superior fracture toughness ensures better impact resistance and reduced likelihood of cracking under stress.

Wear Resistance: Outstanding wear resistance makes them ideal for high-wear applications like cutting tools and bearings.

Biocompatibility: Suitable for medical applications due to biocompatibility and resistance to sterilization processes.

Specifications of Silicon Nitride Nozzles

Property	Specification
Material Composition	Si₃N₄ (Silicon Nitride)
Density	~3.20 g/cm³
Hardness (Vickers)	~1500-1800 HV
Fracture Toughness	~6-7 MPa·m½
Young’s Modulus (Elastic Modulus)	~280-320 GPa
Compressive Strength	~3000-4000 MPa
Flexural Strength (Bending Strength)	~800-1000 MPa
Coefficient of Thermal Expansion	~3.2 × 10⁻⁶ /°C (at room temperature to 1000°C)
Thermal Conductivity	~25-35 W/m·K
Max Service Temperature in Air	Up to 1200°C (continuous), up to 1400°C (intermittent)
Chemical Resistance	Excellent resistance to acids, alkalis, and molten metals
Electrical Resistivity	High (>10¹² Ω·cm at room temperature)
Wear Resistance	Excellent, suitable for high-wear applications
Thermal Shock Resistance	Outstanding, capable of withstanding rapid temperature changes
Corrosion Resistance	Superior, especially in aggressive environments
Self-Lubricating Properties	Reduces friction in moving parts
Biocompatibility	Suitable for medical applications
Environmental Impact	Environmentally friendly, no harmful substances
Nozzle Dimensions	Inner diameter, outer diameter, length, and nozzle shape can be customized based on application requirements
Surface Finish	Can be polished or left as-sintered depending on the application needs

Applications of Silicon Nitride Nozzles

Aerospace and Automotive: Utilized in turbine engines, exhaust systems, and other high-temperature components where thermal stability and resistance to thermal shock are critical.

Manufacturing and Machining: Ideal for use in injection molding, die casting, and metal forming applications, benefiting from high hardness and durability.

Chemical processing: Corrosion resistance is essential if used in pumps, valves and piping systems.

Medical devices: Suitable for surgical instruments and implants, with biocompatibility and anti-sterilization.

Ceramic bearings: Preferred for applications requiring minimal lubrication and high-speed performance, such as electric motors and industrial machinery.

Semiconductor manufacturing: Wafer processing facilities and furnace components are manufactured using the purity and thermal stability of the materials.

Energy sector: For fuel cells and nuclear reactors, the ability of silicon nitride to withstand extreme conditions is crucial.

Company Profile

Advanced Ceramics founded on October 17, 2014, is a high-tech enterprise committed to the research and development, production, processing, sales and technical services of ceramic relative materials and products.. Since its establishment in 2014, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.

Our products includes but not limited to Silicon carbide ceramic products, Boron Carbide Ceramic Products, Boron Nitride Ceramic Products, Silicon Carbide Ceramic Products, Silicon Nitride Ceramic Products, Zirconium Dioxide Ceramic Products, Quartz Products, etc. Please feel free to contact us.(nanotrun@yahoo.com)

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

FAQs of Silicon Nitride Nozzles

Q: WHAT IS the MAIN advantage of SILICON nitride nozzle?

A: Main advantages: high hardness, abrasion resistance, low density, fracture toughness, good thermal stability, good chemical inactivation. With these characteristics, SILICON NITride nozzles are IDEAL FOR extreme conditions for high-performance applications WHERE DURABILITY and reliability are assured.

Q: Silicon nitride nozzles are commonly used in what industries?

A: Silicon nitride nozzles are widely used in aerospace, automotive, manufacturing, chemical processing, medical devices, ceramic bearings, semiconductor manufacturing and energy fields. They can be widely used in these industries because they can withstand harsh environments and provide consistent performance.

Q: How do silicon nitride nozzles perform at high temperatures?

A: The silicon nitride nozzles maintain their mechanical properties at high temperatures, with continuous operating temperatures up to 1200°C and intermittent operating temperatures up to 1400°C. Their thermal stability ensures reliable performance in high-temperature environments, making them suitable for demanding applications such as turbine engines and exhaust systems.

Q: Is silicon nitride resistant to chemicals?

A: Yes, silicon nitride has excellent chemical inertia and corrosion resistance. Resistant to acid, alkali and molten metal, it is ideal for use in aggressive chemical environments such as pumps and valves to ensure long-term reliability.

Q: Can silicon nitride nozzles be used in medical applications?

A: Of course. Silicon nitride nozzles are biocompatible and antiseptic for surgical instruments and implants. Their durability and inertia ensure the safety and long-term performance of medical devices.