Silicon Nitride Industrial Ceramic Materials
Last Updated: April 1, 2025
Description
Silicon nitride is a type of industrial ceramic material known for its high strength and durability. It maintains its strength even at high temperatures and possesses a moderately high elastic modulus and high fracture toughness. Additionally, silicon nitride offers excellent thermal shock resistance due to its combination of moderate thermal conductivity, low coefficient of thermal expansion, and high elastic modulus. It also provides corrosion resistance to many acids and alkalis, as well as superior wear resistance.
Working Principle
Silicon nitride ceramics work by leveraging their unique structural properties, which include high specific strength, high specific modulus, and excellent thermal conductivity. These properties make them particularly useful in extreme environments such as high temperature, high speed, and corrosive media. The material's ability to withstand thermal shocks, even when rapidly heated and cooled, is due to the formation of needle-like or long-columnar ß-type crystal phases during sintering. This structural integrity under stress makes silicon nitride ceramics a preferred choice in applications requiring high durability and reliability.
Applications
Silicon nitride ceramics are used in a variety of applications due to their robust properties. In the refractory industry, they are used to make refractory bricks, castables, and coatings for high-temperature kilns and equipment in steel, nonferrous metals, and glass industries . In electronics, they serve as packaging materials, heat sinks, and insulating materials for semiconductor chips, as well as components in microwave communication and optoelectronic devices . In the aerospace industry, silicon nitride is used in ball bearings, radomes, RF windows, and engine components due to its ability to withstand high temperatures and velocities . Additionally, it is used in the metallurgical industry for components like crucibles and burners due to its excellent chemical stability and oxidation resistance .
Advantages over other Industrial Ceramic Materials
Silicon nitride ceramics offer several advantages over other industrial ceramic materials. They have better heat resistance, fracture toughness, and strength, which are crucial for applications involving high temperatures and thermal shocks . Their superior wear resistance makes them ideal for use in ceramic bearings . Furthermore, silicon nitride's ability to maintain mechanical properties at high temperatures and its resistance to corrosion by acids and alkalis provide a significant edge over other materials .
Limitations
Despite its many advantages, silicon nitride ceramics have limitations. The production process can be complex and costly, which may limit its use in applications where cost is a significant factor. Additionally, while silicon nitride is resistant to many corrosive environments, it may not be suitable for all chemical exposures, particularly those involving highly reactive substances not covered by its corrosion resistance profile.
Considerations
When considering silicon nitride ceramics for industrial applications, several factors should be taken into account. Initial costs can be high due to the complexity of the manufacturing process. However, the material's durability and low maintenance requirements can offset these costs over time. Operating expenses may be reduced due to the material's long lifespan and resistance to wear and corrosion. Replacement and maintenance costs are generally lower compared to other materials, given silicon nitride's robustness and reliability in demanding environments.
from 3X Ceramic Parts Company Limited
114x114x0.34mm Si3N4 Silicon Nitride Substrate Plate. The power conductive terminal of IGBT module for electric vehicles needs to carry hundreds of amperes of high current, which has high requirements for conductivity and thermal conductivity. In the on-board environment, it also has to bear certain... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- Thermal Conductivity: 85
- Shape / Form: BarStock
- Density: 3.18
from Shenzhen Great Precision Ceramic CO., LTD.
Advantages Of Ceramic Washe. The Ceramic Washe has super hardness, it has lubricity and is very resistant to wear. Except for hydrofluoric acid, it does not react with other inorganic acids and has strong corrosion resistance. Moreover, it can resist the impact of cold and heat. It will not be... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- CTE: 2.95 to 3
- Thermal Conductivity: 23 to 25
- Density: 3.2 to 3.25
from Xiamen Unipretec Ceramic Technology Co., Ltd.
Aluminum oxide ceramic is a high-performance ceramic material, also known as alumina ceramic material. Composed of high-purity alumina powder, this non-metallic material is manufactured via pressing, molding, sintering, and other processes. According to the alumina content, it is classified as 92... [See More]
- Material Type: Alumina; Silicon Carbide; Tungsten Carbide; Silicon Nitride; SpecialtyMaterial
- Density: 3.6 to 3.95
- Max Use Temperature: 1200 to 1650
- Applications: Biomaterial; Chemical or material processing; Corrosion resistant; Electronics or semiconductors; HV / Electrical; Refractory or High Temperature Insulation
from Xiamen Innovacera Advanced Materials Co., Ltd.
Silicon nitride ignition technology is a new technology commonly used in ignition devices. As new arrival of ceramic igniter also called Quartz Crystal Igniter is a very good solution in the pellet ignition market. Compared with traditional ceramic lighters, the ignition time is reduced to less than... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- Applications: Ignition of biomass boilers, ignition of straw incinerators; Refractory or High Temperature Insulation
- Max Use Temperature: 1200
- Performance Features: High resistance to burning pellets
from Fountyl Technologies Pte. Ltd.
Silicon Nitride Ceramic is a ceramic material composed of silicon nitride (Si3N4) that has excellent physical, chemical, and mechanical properties and is therefore widely used in various of fields. Main Characteristics: Light Weight, High Wear Resistance and High Heat Resistance. Main Applications:... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- Thermal Conductivity: 25
- Shape / Form: Custom Shape
- CTE: 2.79
from 3X Ceramic Parts Company Limited
3X Ceramic Parts Company provide different material of Ceramic Guide Pin: Silicone Nitride Guide Pin, Welding Pin. Nano Zirconia blue ceramic guide pin , raw material imported from Germany. China produced Blue Zirconia Ceramic material. ZTA material. White Zirconia Ceramic material. Alumina Ceramic... [See More]
- Material Type: Alumina; Silicon Nitride; Zirconia; SpecialtyMaterial
- Dielectric Strength: 2.00E7 to 3.00E7
- Compressive Strength: 362592 to 565644
from Shenzhen Great Precision Ceramic CO., LTD.
Silicon Nitride. Si3N4. Silicon nitride is mainly composed of Si3N4, which has excellent heat shock resistance and high temperature strength. These characteristics make it an ideal material for automobile engine and gas turbine. It can be used in turbocharger rotor, hot plug and hot plug in diesel... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- Applications: HV / Electrical
- Density: 3.21
from Xiamen Unipretec Ceramic Technology Co., Ltd.
The gas atomization ceramic nozzle is a critical consumable component that determines the performance of the metal powder produced in the gas atomization process. [See More]
- Material Type: Boron Nitride; Silicon Nitride; SpecialtyMaterial
- Max Use Temperature: 900 to 2000
- Shape / Form: Spout
- Density: 2 to 3
from Xiamen Innovacera Advanced Materials Co., Ltd.
Innovacera have a new material member named BSN joined BMATS ® Solid Boron Nitride family. BSN is a composite material, it ’s made from BN and Silicon Nitride. It ’s with very good mechanical strength and wear resistance. BSN is often used as nozzle, crucible and stir rods due to its... [See More]
- Material Type: Boron Nitride; Silicon Nitride; SpecialtyMaterial
- Applications: Jigs for molding glass Parts for semiconductor equipment Crucibles/Nozzles for molten meta
- Shape / Form: Rod; Roller / Roll; Tube
- Performance Features: Machinable ceramic; Best wear resistance in Solid BN family Good thermal shock resistance
from 3X Ceramic Parts Company Limited
Good Thermal Shock Resistant Silicon Nitride Welding Ring. Silicon Nitride Welding ring are used on automative welding for car manufacturers and suppliers . The physical and chemical properties as well as extreme stress tolerance extend the possible range to applications in production engineering . [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- CTE: 3.2
- Thermal Conductivity: 15 to 20
- Density: 3.2
from Shenzhen Great Precision Ceramic CO., LTD.
Advantages Of Silicon Nitride Ceramic Blade. The Silicon Nitride Ceramic Blade has super hardness, it has lubricity and is very resistant to wear. Except for hydrofluoric acid, it does not react with other inorganic acids and has strong corrosion resistance. Moreover, it can resist the impact of... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- CTE: 2.95 to 3
- Thermal Conductivity: 23 to 25
- Density: 3.2 to 3.25
from Xiamen Unipretec Ceramic Technology Co., Ltd.
Ceramic structural balls are typically used in bearings and have a supporting function. Ceramic bearing balls are a crucial component of deep groove ball bearings, angular contact bearings, self-aligning ball bearings, thrust ball bearings, etc. [See More]
- Material Type: Alumina; Silicon Carbide; Tungsten Carbide; Silicon Nitride; Zirconia; SpecialtyMaterial
- Applications: Chemical or material processing; Corrosion resistant; HV / Electrical; Refractory or High Temperature Insulation
- Density: 3.2 to 6
- Performance Features: Hard
from Xiamen Innovacera Advanced Materials Co., Ltd.
Silicon nitride is optimal for engine parts due to its toughness at high temperatures, superior thermal shock resistance, light weight and corrosion resistance. Silicon Nitride Ceramics. Silicon nitride, mainly consisting of Si3N4, has excellent thermal shock resistance and high-temperature... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- Applications: Wear resistant parts or tooling
- Shape / Form: Custom Shape
from 3X Ceramic Parts Company Limited
Diameter 1.0mm 1.5mm 2.0mm Silicon Nitride Rod. The prime features of silicon nitride rod. 1. Extraordinary thermal shock, it can withstand up to1000 ºC. 2. It's easier to do precise machining, the tolerance can be 0.001mm. 3. Chemical corrosion resistance under high temperature, except for HF... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- Thermal Conductivity: 15 to 20
- Shape / Form: Rod; Custom Shape
- Density: 3.2
from Shenzhen Great Precision Ceramic CO., LTD.
Advantages Of Silicon Nitride Ceramic Block. The Silicon Nitride Ceramic Block has super hardness, it has lubricity and is very resistant to wear. Except for hydrofluoric acid, it does not react with other inorganic acids and has strong corrosion resistance. Moreover, it can resist the impact of... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- Thermal Conductivity: 23 to 25
- Shape / Form: Block
- CTE: 2.95 to 3
from Xiamen Unipretec Ceramic Technology Co., Ltd.
Ceramic components are manufactured of ceramic materials, which are an extensive family of inorganic, non-metallic compounds typically consisting of metal, non-metal, and metalloid elements. The exceptional properties exhibited by ceramics, such as their high hardness, low electrical conductivity,... [See More]
- Material Type: Alumina; Silicon Carbide; Tungsten Carbide; Cordierite; Glass Ceramics; Porcelain; Steatite; Aluminum Nitride; Silicon Nitride; Zirconia; SpecialtyMaterial
- Performance Features: Hard
- Applications: Abrasion Resistant; Armor / Ballistic Protection; Biomaterial; Corrosion resistant; Electronics or semiconductors; HV / Electrical; Thermal Insulation or Fire Proofing Material; Wear resistant parts or tooling; Battery / Fuel Cell; Refractory or High Temperature Insulation
- Bond & Processing: Sintered / Fired
from Xiamen Innovacera Advanced Materials Co., Ltd.
Innovacera Silicon Nitride Grinding Media Balls was made by 3 forming way: titration, roll and CIP (cold isostatic pressing ) forming and they were gas pressing sinetering in 1800 ～2100 ℃.The purity of silion nitride is 99% and generally if the diameter size is more than 3mm, we will... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- Applications: Ceramic Manufacturing, New Energy, Electronic material milling, Grinding ink, rare earths & advanced polymers, High-purity chemical system grinding
- Shape / Form: Roller / Roll
- Performance Features: Low friction and heat generation, electrical insulation, non-magnetic, high strength
from 3X Ceramic Parts Company Limited
Diameter 4mm Length 20mm Silicon Nitride Pin Rod. Silicon nitride ceramics have excellent mechanical properties and machinability, high temperature resistance, corrosion resistance, wear resistance, high hardness, adhesion resistance, small friction coefficient and self lubrication. The shafts and... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- Density: 3.2
- Thermal Conductivity: 15 to 20
- MOR / Flexural Strength: 87022
from Shenzhen Great Precision Ceramic CO., LTD.
Advantages Of Silicon Nitride Ceramic Crucible. The Silicon Nitride Ceramic Crucible has super hardness, it has lubricity and is very resistant to wear. Except for hydrofluoric acid, it does not react with other inorganic acids and has strong corrosion resistance. Moreover, it can resist the impact... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- CTE: 2.95 to 3
- Thermal Conductivity: 23 to 25
- Density: 3.2 to 3.25
from Xiamen Unipretec Ceramic Technology Co., Ltd.
Ceramic rollers for three roll mill are an important component in the production of numerous products such as cosmetics, inks, paints, coatings, etc. They are used to grind and disperse materials, ensuring that the product quality is consistent and uniform. [See More]
- Material Type: Alumina; Silicon Carbide; Tungsten Carbide; Silicon Nitride; Zirconia; SpecialtyMaterial
- Applications: BuildingConstruction; Corrosion resistant
- Shape / Form: Roller / Roll
- Performance Features: Hard
from 3X Ceramic Parts Company Limited
Silicon Nitride Locator Block Si3N4 for Welding. Silicon Nitride (Si3N4) is a widely used ceramic material in high temperature application, it has high strength in both room. temperature and high temperature condition, the strength of silicon nitride can be kept up to 1200 ℃; the low... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- MOR / Flexural Strength: 87022
- Thermal Conductivity: 15 to 20
- Compressive Strength: 362592
from Shenzhen Great Precision Ceramic CO., LTD.
Advantages Of GPSN Ceramic Disc. The Silicon Nitride Ceramic Disc has super hardness, it has lubricity and is very resistant to wear. Except for hydrofluoric acid, it does not react with other inorganic acids and has strong corrosion resistance. Moreover, it can resist the impact of cold and heat. [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- CTE: 2.95 to 3
- Thermal Conductivity: 23 to 25
- Density: 3.2 to 3.25
from Xiamen Unipretec Ceramic Technology Co., Ltd.
Ceramic tubes are mainly composed of alumina, zirconia, silicon nitride and other ceramics. They provide excellent high temperature resistance, mechanical strength, electrical insulation, wear and corrosion resistance, etc., making them indispensable components in numerous industrial applications. [See More]
- Material Type: Alumina; Silicon Nitride; Zirconia; SpecialtyMaterial
- Applications: Chemical or material processing; Corrosion resistant; Electronics or semiconductors; HV / Electrical; Wear resistant parts or tooling; Refractory or High Temperature Insulation
- Shape / Form: Tube
- Bond & Processing: Sintered / Fired
from CoorsTek
CoorsTek ultra-precise Cerbec ® Bearing Balls are ideal for use in wind turbines, available in up to 50 mm diameters. The inherent dielectric properties of silicon nitride (Si3N4) provide electrical insulation in generator bearings — eliminating stray current damage and premature failure. [See More]
- Material Type: Carbide Material; Silicon Carbide; Silicon Nitride; SpecialtyMaterial
- Shape / Form: Custom Shape
- Composition: Silicon Nitride (Si3N4)
- Thermal Conductivity: 105 to 225
from San Jose Delta Associates, Inc.
Thermal reaction of silicon metal compacts and nitrogen produces Reaction Bonded Silicon Nitride. Complex components can be readily and economically produced by machining the material in the green state. RBSN is a moderately dense form of Silicon Nitride that does not contain a glassy second phase... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- Density: 2.4 to 2.6
- Shape / Form: Custom Shape
- MOR / Flexural Strength: 41916 to 49022
from Accuratus Corporation
Silicon nitride is a man made compound synthesized through several different chemical reaction methods. Parts are pressed and sintered by well developed methods to produce a ceramic with a unique set of outstanding properties. The material is dark gray to black in color and can be polished to a very... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- Shape / Form: Custom Shape
from Morgan Advanced Materials
An advanced synthetic ceramic with a nominal Si3N4 content of 99%. Reaction bonded silicon nitride (RSBN) is made by directly reacting compacted silicon powder with nitrogen to produce porous components of relatively low density and possessing exceptional thermal properties. [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- Density: 2.50E-9
- Thermal Conductivity: 12
- MOR / Flexural Strength: 29007
from 3M Advanced Materials Division
Heavy-duty diesel engines. Jet engine igniters. Oil wells thousands of feet underground. When extreme conditions like these push equipment to its limits, 3M ™ Silicon Nitride industrial ceramics deliver high performance where other materials fail. 3M silicon nitride is 60% lighter than steel... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- Applications: Abrasion Resistant; Electronics or semiconductors; Automotive, Aerospace
- Shape / Form: Tube; Hollow Stock (Tube, Pipe, Column); Immersion Tube or Sheath; Custom Shape
from Saint-Gobain Performance Ceramics & Refractories
Saint-Gobain High-Performance Refractories. Saint-Gobain leads the industry in the design, development and production of the highest performing solutions for extreme operating conditions and high temperature environments. Every product and material is designed to maximize performance and longevity... [See More]
- Material Type: Carbide Material; Silicon Carbide; Silicon Nitride; SpecialtyMaterial
- Performance Features: Composite
from CoorsTek
Silicon Nitrides (Si3N4) have a unique grain structure which delivers both exceedingly high strength and toughness and exceptionally high thermal shock resistance — making it ideal for applications with high dynamic stresses, thermal rigor, and demanding reliability requirements. Silicon... [See More]
- Material Type: Silicon Nitride; SpecialtyMaterial
- Max Use Temperature: 1400
- Composition: Silicon Nitride (Si3N4)
- Thermal Conductivity: 20 to 100