Overview of Silicon Nitride Ceramics

Silicon Nitride Ceramics are high-performance materials known for their excellent mechanical properties, including strength, toughness, and resistance to wear, corrosion, and thermal shock, making them ideal for demanding applications in various industries.

Features of Silicon Nitride Ceramics

Exceptional hardness and wear resistance.

Superior mechanical strength and fracture toughness.

Excellent thermal stability and resistance to thermal shock.

High corrosion resistance in aggressive environments.

Low density contributing to lightweight components.

(Si3N4 Silicon Nitride Ceramic Disc Disk)

Specifications of Si3N4 Silicon Nitride Ceramic Disc Disk

The Si3N4 silicon nitride ceramic disc is a high-performance material designed for demanding applications. It is made from silicon nitride (Si3N4), a compound combining silicon and nitrogen. This ceramic disc has a density of 3.2-3.3 g/cm³, ensuring lightweight durability. Its hardness reaches 85-90 HRA, making it resistant to surface wear. The fracture toughness is 6-7 MPa·m¹/², higher than many ceramics, reducing crack risks.

The disc handles extreme temperatures. It operates up to 1,300°C in air and 1,800°C in inert environments. Thermal shock resistance is strong due to low thermal expansion (3.2×10⁻⁶/°C). This prevents cracking under rapid temperature shifts. It outperforms alumina and zirconia in thermal stability.

Mechanical strength is a key feature. Flexural strength ranges from 600-1,000 MPa. Compressive strength exceeds 2,500 MPa. The material resists abrasion and wear, ideal for high-stress environments like bearings or cutting tools.

Chemical resistance is excellent. The disc withstands acids, alkalis, and molten metals. It suits chemical processing, metallurgy, and marine applications. Corrosion is minimal even in harsh conditions.

Electrical insulation remains reliable at high temperatures. The dielectric strength is 15-25 kV/mm. This makes it useful in electronics, insulators, and high-voltage systems.

Standard disc diameters range from 5 mm to 300 mm. Thickness varies from 0.5 mm to 50 mm. Custom sizes are available. Dimensional tolerance is tight, typically ±0.5% or better.

Applications include industrial bearings, engine components, semiconductor equipment, and cutting tools. It is used in aerospace, automotive, and energy sectors.

Surface finish options include polished, ground, or as-sintered. Polishing reduces friction for moving parts. Precision machining is possible before sintering. Post-sintering machining is limited due to hardness. Net-shape forming is recommended for complex designs.

The material is non-magnetic and biocompatible. It works in medical implants and MRI environments. No lubricants are needed in mechanical uses, lowering maintenance.

This ceramic disc combines strength, thermal stability, and chemical resistance. It meets needs across industries requiring reliability under extreme conditions.

(Si3N4 Silicon Nitride Ceramic Disc Disk)

Applications of Si3N4 Silicon Nitride Ceramic Disc Disk

Silicon nitride (Si3N4) ceramic discs are high-performance materials used in many industries. They work well under extreme conditions. This makes them ideal for demanding applications. The material has strong mechanical properties. It resists wear, corrosion, and high temperatures. These features give it an edge over traditional metals or polymers.

In industrial machinery, silicon nitride discs serve as bearings or cutting tools. They handle heavy loads and high-speed rotations. The low friction reduces energy loss. This improves machinery efficiency. They also last longer than steel parts. This lowers maintenance costs.

The aerospace industry uses these discs for engine components. They survive high temperatures in turbines. Their light weight cuts fuel consumption. This is critical for aircraft performance. The material stays stable under thermal stress. This prevents cracks or failures during flight.

Automotive systems benefit from silicon nitride discs in hybrid and electric vehicles. They act as insulating parts in battery systems. Their electrical resistance prevents short circuits. They also work in sensors and ignition systems. The material’s durability ensures reliability in harsh engine environments.

Electronics manufacturers use these discs for semiconductor processing. They resist plasma erosion in etching machines. This extends equipment life. Their thermal conductivity manages heat in high-power devices. This protects sensitive electronic parts.

Medical devices like dental implants or surgical tools use silicon nitride. The material is biocompatible. It does not trigger immune responses. Its antibacterial properties reduce infection risks. It also withstands repeated sterilization.

Energy sectors apply these discs in solar panels and wind turbines. They endure weather exposure and mechanical stress. Their thermal stability helps in power generation systems. This ensures consistent performance over time.

Silicon nitride ceramic discs offer versatility across fields. Their unique properties solve challenges in extreme environments. Industries choose them for reliability, efficiency, and cost savings.

Company Introduction

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)

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Shipment Methods

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

5 FAQs of Si3N4 Silicon Nitride Ceramic Disc Disk

What is Si3N4 Silicon Nitride Ceramic Disc?
Si3N4 Silicon Nitride Ceramic Disc is a high-performance ceramic material. It is made from silicon and nitrogen atoms bonded tightly. This structure gives it exceptional strength and resistance to heat, wear, and corrosion. It is commonly used in industrial applications requiring durability under extreme conditions.

What are the key properties of Silicon Nitride Ceramic Discs?
Silicon Nitride Ceramic Discs excel in mechanical and thermal performance. They withstand temperatures up to 1,300°C without losing strength. The material resists thermal shock, meaning it handles sudden temperature changes well. It is also lightweight, electrically insulating, and chemically inert. These traits make it ideal for harsh environments.

Where are Silicon Nitride Ceramic Discs typically used?
These discs are widely used in automotive, aerospace, and manufacturing industries. Common applications include bearings, cutting tools, and engine components. They serve in electric vehicle batteries, semiconductor equipment, and high-temperature furnaces. Their reliability in extreme stress and heat makes them a top choice for critical parts.

How do Silicon Nitride Discs compare to other ceramics like alumina or zirconia?
Silicon Nitride outperforms alumina and zirconia in toughness and thermal stability. It is less brittle, reducing fracture risks under heavy loads. Unlike zirconia, it maintains strength at higher temperatures. Its lower thermal expansion minimizes cracking during rapid heating or cooling. This makes it better for demanding engineering tasks.

What precautions should be taken when handling Silicon Nitride Ceramic Discs?
Handle discs carefully to avoid chipping or cracking. Use gloves to prevent oil or dirt contamination. Store them in dry conditions to avoid moisture absorption. Avoid sudden impacts during installation. Follow manufacturer guidelines for machining or surface treatments to preserve their properties.

(Si3N4 Silicon Nitride Ceramic Disc Disk)