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BLOOM(suzhou) Materials Co.,Ltd

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China Industrial Silicon Nitride Rod with High Thermal Conductivity and Compressive
China Industrial Silicon Nitride Rod with High Thermal Conductivity and Compressive

  1. China Industrial Silicon Nitride Rod with High Thermal Conductivity and Compressive
  2. China Industrial Silicon Nitride Rod with High Thermal Conductivity and Compressive
  3. China Industrial Silicon Nitride Rod with High Thermal Conductivity and Compressive
  4. China Industrial Silicon Nitride Rod with High Thermal Conductivity and Compressive
  5. China Industrial Silicon Nitride Rod with High Thermal Conductivity and Compressive

Industrial Silicon Nitride Rod with High Thermal Conductivity and Compressive

  1. MOQ: 1pcs
  2. Price: FobShanghai usd 3.5-5/pc
  3. Get Latest Price
Type Ceramic Parts
Payment Terms Western Union,L/C,T/T
Supply Ability 3000 pc/pcs per Month
Delivery Time 25-30 days subject to the clients' requirement and quantity
Packaging Details packed and labeled according to the regulations and customer's requests.Great care is taken to avoid any damage which might otherwise be caused during storage or transportation.
Place of origin Jiangsu,China
Processing service Welding,Cutting,Moulding,CNC
Thermal Conductivity 15 W/m.k
Compressive strength 488 Mpa
Density 3.24g/cm3
Color Grey
Application Industrial Ceramic
Material Silicon nitride
Hardness 18 Gpa
Brand Name BLM-kcf-1
Place of Origin Jiangsu, China (Mainland)

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  1. Product Details
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Product Specification

Type Ceramic Parts Payment Terms Western Union,L/C,T/T
Supply Ability 3000 pc/pcs per Month Delivery Time 25-30 days subject to the clients' requirement and quantity
Packaging Details packed and labeled according to the regulations and customer's requests.Great care is taken to avoid any damage which might otherwise be caused during storage or transportation. Place of origin Jiangsu,China
Processing service Welding,Cutting,Moulding,CNC Thermal Conductivity 15 W/m.k
Compressive strength 488 Mpa Density 3.24g/cm3
Color Grey Application Industrial Ceramic
Material Silicon nitride Hardness 18 Gpa
Brand Name BLM-kcf-1 Place of Origin Jiangsu, China (Mainland)
High Light Ceramic Silicon Nitride RodIndustrial Silicon Nitride Ceramic RodBearing Rollers Silicon Nitride Rod
Industrial Silicon Nitride Rod For Making Advanced Ceramic Tubes And Bearing Rollers
Product Overview

Silicon Nitride Rod is a premium ceramic material widely used in the metallurgical industry due to its exceptional high-temperature performance. With excellent thermal shock resistance, superior creep and oxidation resistance, low thermal conductivity, and high wear resistance, silicon nitride rods withstand demanding conditions in most industrial applications.

Manufacturing Methods

There are five primary production methods for Silicon Nitride Welding Rods: SRBSN, GPSN, HPSN, HIP-SN, and RBSN. Each method results in slightly different application characteristics and working materials. Among these, GPSN is the most commonly used method for producing silicon nitride components.

Ceramic Bearing Applications

The use of ceramic rollers in bearings was originally developed to meet stringent operating requirements in advanced gas turbines. This technology has since expanded to machine tool spindles, motors, generators, and various other fields, accelerating the development of ceramic rolling body applications.

Hybrid rolling bearings with ceramic rollers are now used in many challenging applications, including railways and the renewable energy industry, particularly in wind turbines where they are deployed in large numbers.

Silicon Nitride Ceramic Ball Characteristics
Mechanical Properties
  • High rigidity, strength, and hardness
  • Low density (3.26g/cm³) - 60% lighter than steel
  • Reduced wear and noise
  • High mechanical strength
Thermal Properties
  • High temperature resistance (up to 1000°C)
  • Low thermal conductivity
  • Low linear expansion coefficient (3.2 × 10⁻⁶/K)
  • Excellent thermal shock resistance
Electrical & Chemical Properties
  • Non-magnetic and electrical insulation
  • Strong corrosion resistance
  • Self-lubricating properties
  • Suitable for vacuum and high-temperature environments
Silicon Nitride Ceramic Ball and Bearing Components
Material Properties Comparison
Property Item 99% Alumina 99.8% Alumina Zirconia Ceramics Silicon Nitride Silicon Carbide Unit
Mechanical Characteristics Color light yellow White Ivory Black Grey Black
Bulk Density 3.85 3.93 6.02 3.2 3.16 g/cm³
Water Absorption 0 0 0 0 0 %
Bending Strength 310 370 800 750 450 MPa
Compressive Strength 2,400 2500 3000 3800 3900 MPa
Elastic Modulus 340 390 200 290 420 GPa
Fracture Toughness 3~4 4 8 7 3.5 MPa·m¹/²
Vickers Hardness 1,600 1850 1200 1700 2800 HV 0.5
Thermal Characteristics Coefficient of Linear Thermal Expansion 7~8 7~8 10 2 3.7 10⁻⁶ K⁻¹
Thermal Conductivity 29 32 3 20 160 W/m·K
Thermal Shock Resistance 200 280 300 750 - ΔT °C
Max Working Temperature 1,600 1700 1000 1300 1950 °C
Applications
  • Advanced ceramic tubes
  • Bearing rollers
  • Ceramic cutting materials
  • Cryogenic bearing rollers
  • Nozzles
  • Seal rings
  • Tube forming tools
  • Mechanical engineering special applications
Silicon Nitride Material Properties
Physical Properties
  • Thermal properties: High-temperature refractory substance with no melting point, decomposes at about 1900°C under normal pressure
  • Strong creep resistance under high pressure
  • Softening point of reaction sintered silicon nitride without binder can reach 1800°C
  • Good thermal conductivity
  • Small thermal expansion coefficient
  • Excellent electrical insulation performance with small dielectric coefficient and high breakdown voltage
Chemical Properties
  • Oxidation resistance: Does not react with oxygen in dry atmosphere below 800°C
  • Molten metal corrosion resistance: Resists infiltration and corrosion from elemental metal melts (except copper)
  • Resistance to acid, alkali and salt corrosion: Easily soluble in hydrofluoric acid, but resistant to dilute acids
Mechanical Properties
  • Excellent high temperature strength with minimal attenuation at 1200°C compared to room temperature strength
  • Very low high temperature creep rate due to strong covalent bonds
  • High hardness, second only to superhard materials like diamond, cubic BN, and B₄C
  • Low friction coefficient with self-lubricating properties similar to oiled metal surfaces
Silicon Nitride Applications in Automotive Industry
Industry Applications
Automotive Industry

Sintered silicon nitride is primarily used in the automotive industry for engine components. Applications include lower wear rocker pads in spark ignition engines, turbochargers for reduced inertia and engine lag, and waste gas control valves for improved acceleration.

Bearings

Silicon nitride ceramics offer superior impact resistance compared to other ceramics, making them ideal for performance bearings. NASA's space shuttles utilized silicon nitride bearings in their main engines. These bearings are found in high-end automotive applications, industrial bearings, wind turbines, motorsports, bicycles, roller skates, and skateboards.

Metal Cutting Tools

Bulk monolithic silicon nitride serves as an excellent material for cutting tools due to its hardness, thermal stability, and wear resistance. It is particularly recommended for high-speed machining of cast iron, hard steel, and nickel-based alloys.

Electronics

Used as insulators and chemical barriers in integrated circuit manufacturing, silicon nitride provides superior electrical isolation and serves as etch masks in bulk micromachining. As a passivation layer for microchips, it outperforms silicon dioxide as a diffusion barrier against water molecules and sodium ions.

Material Datasheet
Properties Units Silicon Nitride
Mechanical Properties
Density g/cm³ 3.2
Porosity % 0
Flexural Strength MPa 830
Compressive Strength MPa 2500
Elastic Modulus GPa 310
Poisson's Ratio / 0.27
Hardness kg/mm² 1580
Fracture Toughness KIC MPa·m¹/² 6.1
Thermal Properties
Heat Conductivity W/m·K 30
Coefficient of Thermal Expansion 10⁻⁶/K 3.3
Max Use Temperature °C 1400
Electrical Properties
Dielectric Constant / 8
Volume Resistivity Ω·cm >10¹⁴
Silicon Nitride Material Structure Silicon Nitride Industrial Components Silicon Nitride Bearing Applications Silicon Nitride Technical Specifications

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Trading Company

  • Year Established:

    2017

  • Total Annual:

    1000000-3000000

  • Employee Number:

    10~50

  • Ecer Certification:

    Verified Supplier

Bloom(Suzhou) Materials Co., Ltd ,which located in the beautiful city of Zhangjiagang , Suzhou,China.  Bloom Company is a technology research and development enterprises which integrats technology research and development, production and trade.It mainly dealing two types of products based on... Bloom(Suzhou) Materials Co., Ltd ,which located in the beautiful city of Zhangjiagang , Suzhou,China.  Bloom Company is a technology research and development enterprises which integrats technology research and development, production and trade.It mainly dealing two types of products based on...

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  • BLOOM(suzhou) Materials Co.,Ltd
  • B615, Future Fortune Building, No. 1 Wangxi Road, Zhangjiagang City, Jiangsu Province
  • https://www.materialalloy.com/

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