Properties and applications of silicon carbide ceramics

Silicon carbide ceramics is a kind of silicon carbide (SiC) as the main component of the ceramic material, with excellent mechanical properties at room temperature and high temperature mechanical properties, including high bending strength, excellent oxidation resistance, good corrosion resistance, high wear resistance and low friction coefficient. The high temperature strength of this material can be maintained to 1600 ° C, which is the best high temperature strength of known ceramic materials.

 

 

The following is a brief introduction to the properties and applications of silicon carbide ceramics

 

(1) Performance

 

Silicon carbide ceramics have the best oxidation resistance among carbides. However, between 1000 and 1140 ° C, the oxidation rate of SiC in the air is larger. It can be broken down by molten alkali.

 

Silicon carbide ceramics have good chemical stability, high mechanical strength and thermal shock resistance.

 

 

The volume resistivity of silicon carbide does not change much in the range of 1000~1500℃, and this characteristic can be used as a resistance heating element material. Silicon carbide heating resistance itself can also be called thermistor or semiconductor resistance. The resistivity of different types of silicon carbide thermistors varies with temperature.

 

(2) Application

 

Silicon carbide ceramics are widely used in various industrial fields, and its uses are as follows:

 

Industrial	Working environment	Application	Principal advantage
oil industry	High temperature, high hydraulic pressure, grinding	Nozzles, bearings, seals, valves	wear-resisting
chemical industry	strong acid,  strong alkali	Seals, bearings, pump parts, heat exchangers	Wear resistance, corrosion resistance, air tightness
	high temperature oxidation	Gasification pipeline, thermocouple sleeve	High temperature corrosion resistance
Cars & Planes	Engine combustion	Burner components, turbocharger rotor	Low friction, high strength, low inertial load
Cars & Engines	engine oil	Valve series element	Low friction, wear resistance
Machinery, Mining	grinding	Borax nozzle, lining, pump parts	wear-resisting
paper industry	pulp, waste liquid	Seal, casing, bearing, forming plate	Wear resistance, corrosion resistance, low friction
heat treatment smelting steel	high-temperature gas	Thermocouple bushing, radiation tube, heat exchanger, combustion element	Wear resistance, corrosion resistance, air tightness

 

 

 

Innovacera has been focusing on providing customers with ceramic material solutions for many years. Including but not limited to silicon carbide ceramic parts customization, if you have any needs, please feel free to contact us.

Magnesium Stabilized Zirconia Gas Atomizing Nozzles

MgO partially stabilized zirconia (Mg-PSZ) ceramic is an advanced ceramic material with high-performance applications. It is a composite material consisting of zirconium dioxide and a partial stabilization of magnesium oxide. MgO here helps to improve the toughness and mechanical properties than pure zirconia,such as higher fracture toughness, strength, and resistance to thermal shock.

 

Magnesia Stabilized Zirconia (MSZ) is a great refractory and insulating material due to high oxygen ion conductivity, high strength and toughness, and good thermal shock resistance. It has a clean melt at temperatures above 1900°C and above and is specially manufactured for melting superalloys and precious metals. Its superior thermal shock resistance to temperatures reaching up to 2200°C.

 

 

Gas atomization is a technique crucial to produce fine metal powder which can precisely control particle size and composition. In this process, molten metal is atomized into small droplets with high-velocity gas streams. In common way, nozzles is made by materials like tungsten carbide or zirconia ceramic . However, the advent of Magnesium Stabilized Zirconia Gas Atomizing Nozzles introduces a paradigm shift in this domain.

 

Magnesium Stabilized Zirconia Gas Atomizing Nozzles have emerged as a transformative technology, revolutionizing the metal powder production and shaping the landscape of various industries.

 

 

Advantage
1.Enhanced Thermal Stability: with high thermal shock resistance, it enable the nozzles to withstand extreme temperatures encountered during the atomization process, which can increase the operational lifespan and reliability.

 

2.Improved Corrosion Resistance: The inherent corrosion resistance of zirconia is further augmented by magnesium stabilization, which makes the nozzles with high wear-resistant and erosion-resistant.

 

3.Precision Atomization: The unique surface properties of magnesium-stabilized zirconia benifits uniform gas flow and efficient atomization, resulting in the production of metal powders with superior quality and consistency.

 

4.Reduced Maintenance Costs: The high strength nature of Magnesium Stabilized ZirconiaNozzles reduces the frequency of maintenance and replacement, so it is cost savings for industrial applications.

 

 

With the advantage of high thermal shock resistance, high wear-resistant and erosion-resistant,metal corrosion resistance in high temperature, excellent non-wetting characteristics, high strength, long service life and the stabilizers and grains combination can be designed according to customer’s using environment, magnesium Stabilized Zirconia Gas Atomizing Nozzles finds application across a diverse range of industries:

 

1.Metallurgy: magnesium Stabilized Zirconia nozzles are used in the metallurgical industry like continuous casting of steel, where they can withstand high temperatures and harsh conditions.

 

2.Thermal spraying: In thermal spraying processes, magnesium-stabilized zirconia ceramic nozzles are used to spray coatings onto surfaces to protect against corrosion, wear, and high temperatures.

 

3.Semiconductor industry: They are employed in the semiconductor industry such as chemical vapor deposition (CVD) and physical vapor deposition (PVD) , where precise control of material deposition is required.

 

4.Specialty glass manufacturing: manufacturers can use Magnesium stabilized zirconia nozzle’s diameter, spray pattern, and flow rate optimizing performance for various specialty glass manufacturing processes.

 

 

Besides the example list above, Mg-PSZ can be use for other field like Artificial/Laser Crystal Ceramic Temperature Field and high temperature melt flow control.With their high thermal shock resistance, high wet & corrosion resistance, and precision atomization capabilities, it can change many industry’s production status.

Introduction of AMB Substrate Technology

AMB (Active Metal Brazing) is a method of sealing ceramics and metals developed on the basis of DBC technology.

 

Compared with traditional DBC substrates, ceramic substrates prepared by AMB process not only have higher thermal conductivity and better copper layer bonding, but also have advantages such as lower thermal resistance and higher reliability. In addition, because its processing process can be completed in one heating, it is easy to operate, has a short time cycle, good sealing performance and a wide range of applications for ceramics, so this process has developed rapidly at home and abroad and has become a commonly used method in electronic devices.

AMB process description

AMB is to add active elements to the brazing material, form a reaction layer on the ceramic surface through chemical reaction, improve the wettability of the brazing material on the ceramic surface, so that the ceramic and the metal can be directly brazed and sealed.

Usually, the active element content is between 2% and 8% with good activity. When the content of active elements is too high, the brittleness of the brazing material will increase, thereby reducing the strength of the sealing surface. When the content of active elements is too low, the wettability of the brazing material to the ceramic will decrease, making the sealing difficult to complete.

 

Three kinds of ceramic materials of AMB

The ceramic lining produced by AMB process is mainly used in power semiconductor modules as the substrate of silicon-based and carbide-based power chips. At present, the mature AMB ceramic substrates are mainly: alumina, aluminum nitride and silicon nitride substrates.

 

At present, Al2O3 copper-clad ceramic substrates are mainly used in low-power heat dissipation devices such as LEDs, AlN and Si3N4 copper-clad ceramic substrates are mainly used in high-power IGBT modules such as high-speed rail and wind power generation.

1. Al2O3 ceramic substrate

Al2O3 ceramics are widely available and have the lowest cost. They are the most cost-effective AMB ceramic substrates with the most mature process. They have excellent characteristics such as high strength, high hardness, high temperature resistance, corrosion resistance, wear resistance and good insulation performance.

 

However, due to the low thermal conductivity and limited heat dissipation capacity of alumina ceramics, AMB alumina substrates are mostly used in fields with low power density and no strict requirements on reliability.

 

2. AlN ceramic substrate

AlN ceramic has better properties than traditional Al2O3 and BeO substrate materials due to its high thermal conductivity (theoretical thermal conductivity 319 W/(m·K)), low dielectric constant, thermal expansion coefficient matching that of single crystal silicon, and good electrical insulation performance, making it an ideal material for circuit substrate packaging in the microelectronics industry.

 

At present, aluminum nitride ceramic substrates (AMB-AlN) using the AMB process are mainly used in high-voltage and high-current power semiconductors such as high-speed rail, high-voltage converters, and DC power transmission. However, due to its relatively low mechanical strength, the high and low temperature cycle impact life of AMB-AlN copper-clad substrates is limited, which limits its application range.

 

3. Si3N4 ceramic substrate

AMB-SiN ceramic substrates have high thermal conductivity (>90W/(m·K)), thick copper layer (up to 800μm), and high heat capacity and heat transfer. In particular, when a thicker copper layer is welded to a relatively thin AMB-SiN ceramic, it has a higher current carrying capacity and better heat transfer.

 

In addition, the thermal expansion coefficient of AMB-SiN ceramic substrate (2.4ppm/K) is close to that of SiC chip (4ppm/K), which has good thermal matching and is suitable for reliable packaging of bare chips.

 

At present, AMB-SiN ceramic substrate is the preferred substrate material for application scenarios such as new energy vehicles, photovoltaic inverters, wind turbines and high-voltage DC transmission devices that require high reliability, high heat dissipation and partial discharge.

 

According to statistics, the ceramic substrates used for power semiconductors above 600V are mainly DBC and AMB processes, among which AMB silicon nitride substrates are mainly used for electric vehicle (EV) and hybrid vehicle (HV) power semiconductors, and AMB aluminum nitride substrates are mainly used for high-voltage and high-current power semiconductors such as high-speed rail, high-voltage converters, and DC power transmission.

 

Conclusion
The market demand for AMB ceramic substrates has increased, among which the rapid growth of electric vehicles, the accelerated installation of SiC, and the rapid growth of new energy vehicles are the main driving factors.

 

If you have any question about the AMB substrate, welcome to contact us at sales@innovacera.com.

Silicon Nitride and Zirconia for Oil and Gas Operations

In recent years, oil and gas suppliers have faced increasing challenges, and all choices for durable and reliable materials are never-ending. Customers within these industries are looking for greater durability and more reliable options to replace traditional materials.

 

Innovacera offers a range of silicon nitride and zirconia materials that provide excellent corrosion, wear, and thermal resistant characteristics enabling them to survive the most arduous environments, showcasing their ability to withstand the harshest conditions encountered during exploration, drilling, production, and refining processes.

Our Silicon Nitride (Si₃N₄) features:
·Excellent fracture toughness
·Very high thermal shock resistance
·Low coefficient of thermal expansion
·Extremely high hardness & wear resistance
·Excellent corrosion resistance in acids and alkaline
·High Strength at ambient & high temperatures up to 1300˚C

 

Our zirconia features:
·Excellent resistance to cavitation
·Corrosion and abrasion wear resistance
·High mechanical strength and fracture toughness
·Chemical wear resistance to the vast majority of reagents and abrasive slurries

 

Applications in Oil and Gas Operations:
1.Use in heat exchangers and thermal management
In heat exchangers, silicon nitride and zirconia tubes provide a reliable means of maintaining efficient heat transfer while resisting corrosion and high temperatures. Their thermal stability ensures the consistent performance of heat exchange processes.

2.As a Liners for drilling tools
Silicon nitride and zirconia tubes as a crucial role as liners in drilling tools. With the ability to withstand abrasive conditions and chemical exposure during drilling operations, these tubes contribute to the durability and longevity of drilling equipment.

 

3.As a protective sleeve for sensors and probes
Silicon nitride and zirconia tubes act as protective sleeves for sensors and probes used in various oil and gas applications. Shielding sensitive equipment from harsh conditions, they enables accurate data collection and measurement.

Vacuum aluminized composite conductive ceramic evaporation boat

1. Boron Nitride Evaporation Boat Application Areas:

-Areas of application:

-Packaging film aluminizing,

-Metallized film aluminizing of capacitors, Metallized coating of paper, textiles.

-metallization of hot stamping materials.

-Metallization of anti-counterfeiting signs

-Display metallization

-Solar Vacuum Aluminizing

-Semiconductor vapor deposition, germanium, nickel, titanium, electron beam -sputtering and other fields.

 

2. Features of Evaporation Boat:

Anti-adhesion: has good anti-adhesion, and can reduce material residue and pollution.

Conductivity: Usually has a low conductivity, which is helpful for certain processes that require controlled electron conduction.

Chemically inert: relatively inert in many chemical environments, not susceptible to corrosion

 

3. Evaporation Boat for Aluminum Plating:

-Shorter pre-heating time

-Better aluminum spreading capability

-Fewer sputtering and boat bending problems

-Longer service life

-More economical options

 

4. Innovacra’s product features and advantages:

The adoption of high purity and high quality raw materials ensures that the materials have good chemical properties.

We are adopting an international advanced vacuum hot pressing sintering method to ensure the excellent physical properties of the products.

The sintering process adopts two-way pressurization to ensure the consistency of the bulk density of the products.

Digital control of production equipment ensures stable and consistent product quality.

Unique process formula and optimized composition structure enhance the thermal shock resistance and flexural strength of the evaporation boat, improve the spreading ability and evaporation efficiency of aluminum liquid, enhance the corrosion resistance of aluminum liquid, and prolong the working life.

 

5. Innovacera’s Composite Ceramic Evaporation Boat Category:

1. Two-component: BN+TiB₂
2. Three components: TiB₂+ BN+ ALN

 

–Two-component: BN+TiB2
Main components: BN+TiB₂

Density 3.0g/cm³

Bonding component: B₂O₃

Color: Gray

Room temperature resistivity: 300-2000 Ω-cm

Working temperature: below 1800℃

Thermal conductivity: >40W/mk

Thermal expansion coefficient: (4-6)x10-6 K

Flexural strength: >130Mpa

Evaporation rate: 0.35-0.5g/min-cm²

 

–Three components: TiB2 + BN + ALN

Performance reference:

Resistivity (room temperature):300-2000μΩ-cm

Evaporation rate(1450℃):0.4-0.5g/min-cm²

 

Working temperature ≤ 1850℃

Thermal conductivity (room temperature /1450℃):> 100/40W/mk

Thermal expansion coefficient (1450℃): (4-6)×10-6K

Flexural strength (room temperature): 150mpa

 

Ceramic metallized insulators for RF Package

In a development that could have a significant impact on the electronics industry, the latest ceramic metallized insulators are making strides in enhancing semiconductor packaging and related applications. These insulators offer a range of practical benefits that can improve the performance and durability of electronic components. Let’s take a closer look at what sets them apart:

Key Features of Ceramic Metallized Insulators:
1. Stability and Strength: The ceramic material employed in these insulators boasts an even texture, ensuring every batch maintains stable quality and flexural strength. This consistency in material quality is pivotal for the reliability of electronic components.
2.Dense and Weldable Metal Layer: The metal layers in these insulators are densely applied, providing a smooth and even surface. This not only enhances their appearance but also makes them easy to work with, particularly in manufacturing processes.
3. Exceptional Electrical Insulation: These insulators offer outstanding electrical insulation properties, characterized by a low dielectric constant. Additionally, they exhibit excellent resistance to abrasion and corrosion, guaranteeing long-lasting durability.
3.High Tensile Strength and Airtightness: With high tensile strength and airtight qualities, these insulators are well-suited for various applications, particularly those demanding high-frequency and high-power capabilities. Their durability and reliability make them a valuable choice for critical electrical components.

Applications:
The versatility of these advanced ceramic metallized insulators opens up a multitude of applications:
1. RF Packaging: These insulators are ideal for RF packaging, where small cavity sizes and reliable plating are essential. Their exceptional electrical properties and robust construction make them a practical choice for RF components.
2.Vacuum Electronic Devices: Their exceptional insulation and durability make these insulators a perfect fit for vacuum electronic devices, where maintaining a vacuum environment is essential.
3.LED Accessories: The insulators’ ability to withstand environmental factors and provide excellent electrical insulation positions them as valuable components in the LED accessory market, contributing to the longevity and efficiency of LED products.

While not groundbreaking innovation, these ceramic metallized insulators represent a step forward in enhancing the reliability and performance of electronic components across various sectors. As the demand for dependable electrical components continues to grow, these insulators are expected to play a pivotal role in various industries, offering practical solutions to everyday challenges.
Manufacturers and industry experts are keeping a close eye on the adoption of these insulators, which have the potential to raise the standards for semiconductor packaging and related applications. As technology evolves, these insulators are likely to become essential components in various electronic products, benefiting both manufacturers and consumers.

How does a PBN heater work? What is the insulation material?

1. What is a PBN heater?

PBN material refers to pyrolytic boron nitride material obtained by CVD high-temperature deposition. BN refers to cubic boron nitride, which is obtained by hot pressing.

The common thickness of PBN parts is less than or equal to 3mm due to the different acquisition processes.

PBN heater refers to a graphite heater formed by depositing a thin layer of graphite on a PBN substrate and forming a graphite band by machining (laser engraving).

Finally, the graphite layer is covered with a layer of PBN cover layer (exposed electrode part) to become a complete graphite heater.

 

2. How many ways are there to process?

Generally, there are two ways:

1^st: PBN sheet to make a good groove, and then coated with pyrolytic graphite, add a layer of PBN coating (outside the circuit engraved by the pbn disk, deposition of pyrolytic graphite on the circuit, and then a layer of pbn deposited on the surface of the pg), the thickness of about mm, voltage and current, and then a layer of graphite.

Thickness of about 3mm or so, voltage and current according to the customer, but it should be low voltage and high current, fast heating.

2^nd: graphite good trough, then trough on both sides coated with PBN, but graphite as a heating device, through the alternating current heating, will produce magnetic resonance, PBN coating is easy to fall off, so do not recommend this way of production.

So this way of production is not recommended, generally according to the first way.

 

Therefore, it can be seen that the substrate and the insulating covering layer are PBN, and the heat generator is graphite tape.

 

3. Why is it manufactured in this way?

Graphite or pyrolytic graphite surface-wrapped coating, graphite is widely used in the heating field, but graphite in the vacuum and high-temperature conditions will continue to precipitate impurities, which will contaminate the ultrapure materials, the use of boron nitride non-porous, low coefficient of thermal expansion of the advantages of the graphite outer layer coated with PBN, so that the impurities precipitated by the graphite can be blocked, to protect the ultrapure materials are not contaminated. The graphite after coating is heated many times, and the surface layer of boron nitride is not easy to peel off.

 

4. Advantage:

PBN heating pad has the advantages of chemical stability, corrosion resistance, etc., generally the highest sample heating temperature of about 1200 ℃, can work in E-5mbar oxygen atmosphere.

When working, you need to pay attention to avoid large rapid temperature rises and falls caused by the PBN cover layer and graphite layer detachment, but also pay attention to ensure that the electrodes are in good electrical contact, to avoid overheating at the contact, and damage to the electrode.

 

5. Summarize the performance characteristics:

-Maximum temperature in vacuum 1650℃

-Maximum temperature in air 300 ℃（No recommend）

-High vacuum, extra high pressure, corrosive environment

-Very fast ramp rate, very low mass

-Very inert

-PG elements are encapsulated in PBN and are completely unaffected by deposition products

-Samples can be placed directly on the heated ceramic element plate

-Sizes up to 4″ square or round

 

 

If you need any assistance or larger heater sizes, please contact our technical sales team today. Note: Customization is possible.

Email:sales@innovacera.com

Tel:0086 0592 5589730

MCH Heater Used for Mass Spectrometers

Mass spectrometers are a technique for analyzing and identifying chemical substances by arranging gaseous ions in electromagnetic fields based on their mass-to-charge ratios.

 

Mass spectrometers can detect most analytes per borehole, so it is essential to have a non-contaminating heat source. In addition, competing requirements for instrument designs to reduce size and complexity while increasing sensitivity are being challenged.

 

Mass spectrometer heating elements, also called source heaters or gas line heaters, are used in mass spectrometers to turn the sample (typically in an aqueous or organic solution) into a vapor for analysis. Before the analyzer and detector areas, the heaters are part of the sample conditioning system, where the vaporized sample is then bombarded by ionized high-energy electrons and analyzed.

 

Heaters used in mass spectrometers are compact in design and provide a fairly high power density. They are fast responding and operate at temperatures up to 400 °C. They include internal temperature sensors for accurate control and limiting.

 

The INNOVACERA Advantage

 

• Engineering Support for New Designs
• Rapid Prototyping
• Replacement Parts

 

Innovacera manufactures OEM and replacement heaters for a variety of mass spectrometer manufacturers and models.

 

 

Advantages of MCH heater

 

MCH ceramic heating element is high-efficiency, environmentally friendly, and energy-saving. ceramic heating element, which is mainly used to replace the most widely used alloy wire heating elements and PTC heating elements and components.

 

Technical characteristics:

• Energy-saving, high thermal efficiency, unit heat power consumption is 20-30% less than PTC;
• The surface is safe and non-charged, with good insulation performance, can withstand the voltage test of 4500V/1S, no breakdown, and leakage current <0.5mA;
• No impulse peak current; no power attenuation; rapid heating; safe, no open flame;
• Good thermal uniformity, high power density, and long service life.

 

Conclusion

 

MCH heaters have revolutionized performance by offering compact design, rapid heating, precise temperature control, and energy efficiency. These advanced heating elements enable mass spectrometers to have a non-contaminating heat source, greater accuracy and effectiveness.

 

If you have any questions about the MCH heater, welcome to contact us at sales@innovacera.com.

Quadrupole Ceramic Collars For Quadrupole Mass Spectrometry

Having over 10 years of experience in manufacturing technical ceramic solutions, Innovacera specialists in quadrupole mass spectrometry ceramic components, such as ceramic insulator components, ceramic collars, ceramic square frames, ceramic saddles; ceramic rods, ceramic filament supports, ceramic orifice plates, ceramic heater and so on.

 

QMS Quadrupole mass spectrometry is widely used for analytical techniques in which ions are filtered based on their mass-to-charge ratio (m/z) as they pass through a quadrupole field. Quadrupoles consist of a set of four electrodes of a particular length in a radial array, as shown in the photo. These ceramic insulator components can used for Xerox scan mass spectrometry instrumentation.

 

We can support customers to make low quantities of ceramic insulator components used in the proofing and prototyping stages of our customers’ designs of quadrupole mass filters, customized ceramic material and design are available. The standard collars are manufactured of 99.5% alumina ceramic and the size is 36.4*36.4*12mm, The electrode rods are made of molybdenum material.

The collars also can be made in round shapes or other customized designs, just send your drawing to us and then we can make them for you.

 

Innovacera provides a wide range of materials to solve problems where plastics and metals fail. Ceramics are ideally to provide the mechanical, electrical, thermal, and other properties needed for analytical instrumentation. Components from materials such as 99.5% alumina, and 95% ceramic with metal seals solve problems where plastics and metals fail.

 

 

Here are the 99.5 alumina ceramic material properties for your reference:

 

99.5 Alumina Ceramic Material Properties
Properties	Value
Main Composition	Al2O3>99.6%
Density	>3.95
Hardness (Gpa)	15~16
Room Temperature Electric Resistivity (Ω·cm)	>10 14
Max Using Temperature(℃）	900.00
Three-Point Bending Strength (MPA)	450.00
Compressive Strength (MPA)	45.00
Young modulus (Gpa)	300-380
Thermal Expansion Coefficient(20-1000℃)(10-6/K)	6~8
Thermal Conductivity (W/m·k)	30.00
Dielectric strength(kv/mm)	18.00
Dielectric constant	9~10
Dielectric loss angle (*10-4)	2.00
Surface Roughness	<Ra0.05um

 

Quadrupole Ceramic Collars Advantages:

 

• Ensure accurate alignment and positioning within the quadrupole magnet assembly.
• Preventing electrical interference with the magnetic field.
• Ensuring durability and longevity.
• Ensuring precise control over the particle beam.
• Low outgassing rates, making them suitable for high vacuum environments, such as those in particle accelerators.

 

The customized service offers customers a high degree of flexibility in the design to suit specific technical and commercial needs, if you need any quadrupole ceramic collars or other mass spectrometry instrumentation relative to ceramic components, welcome to contact us at sales@innovacera.com.

The Use of Silicon Nitride Ceramic

Silicon nitride ceramic is composed of silicon and nitrogen atoms. Its volume density is around 3.26g/cm and its hardness is more than 1600MPa.

 

Here is the material properties :

 

With the material properties above, it possesses a range of characteristics that make it valuable in various applications:

1. Lightweight: Compared to steel materials silicon nitride ceramics are relatively lightweight about 60%. This characteristic is beneficial in applications where weight reduction is important.

2. High-Temperature Stability: Silicon nitride ceramics can endure high temperatures without losing their mechanical properties. They can retain strength and integrity even at temperatures exceeding 1000°C, with a max working temperature of 1650 °.

3. Mechanical Strength: Silicon Nitride Tube has excellent mechanical properties, including high hardness, strength, and toughness. It can endure heavy loads and resist fracture, suitable for structural components in demanding applications like valves.

4. Electrical Insulation: Silicon nitride ceramics is an excellent electrical insulator, with high dielectric strength and low electrical conductivity.

 

 

With characteristics of lightweight, high-temperature stability, mechanical strength, and electrical insulation on chemical inertness, it has many applications:

 

*Ball Bearings and Rolling Elements: Silicon nitride balls and rollers are used in bearings where high-speed rotation, high temperature, and corrosion resistance are required. Compared to traditional steel bearings, it has superior hardness and low friction.

*Gas Turbines and Aerospace Components: Silicon nitride components are used in gas turbines and aerospace due to their excellent thermal shock resistance, high-temperature strength, and lightweight properties.

*Electronics and Semiconductor Industry: Silicon nitride is used as an insulating material in electronic devices and semiconductor manufacturing. It is employed in components such as insulating layers and substrates due to its excellent electrical insulator, high-temperature stability, and chemical inertness.

*High-Temperature Furnace Components: Silicon nitride components such as thermocouple protection tubes, radiant tubes, and heating elements are used in the construction of high-temperature furnaces, kilns, and heating elements due to their ability to withstand extreme temperatures and thermal cycling without degradation.

 

 

Silicon nitride ceramic has been used in the above industries.

Its exceptional properties high strength, toughness, thermal shock resistance, and corrosion resistance, make it a good choice for demanding applications. From the semiconductor industry to aerospace components, silicon nitride ceramics offer reliability and longevity, contributing to performance and efficiency.  However,  high processing costs and difficulty in machining limit its widespread adoption. Nonetheless, our engineering team keeps ongoing research and development aim to solve these hurdles, unlocking further potential for silicon nitride ceramic in diverse fields.