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Application of Ceramic Heat Dissipation in Battery Cooling System

At present, the thermal management of power battery systems can be mainly divided into four categories: natural cooling, air cooling, liquid cooling, and direct cooling.

Among them, natural cooling is a passive thermal management method, while air cooling, liquid cooling, and direct cooling are active methods. The main difference between the three is the difference in heat exchange medium.

Traditional battery cooling system: To change the temperature difference between the battery core and the cooling system, liquid cooling system refrigeration is the most useful method.

How does ceramic heat dissipation apply to battery heat dissipation?

Replace insulating plastic materials with low thermal conductivity with ceramic materials with high thermal conductivity.

The research shows that rapid heat dissipation and temperature equalization can be achieved by using the high thermal conductivity and high insulation of ceramics. Aluminum nitride ceramic substrates are currently used more frequently.

Advantages of aluminum nitride ceramic substrate

Aluminum nitride ceramic substrate has high thermal conductivity, low expansion coefficient, high strength, high temperature resistance, chemical corrosion resistance, high resistivity and low dielectric loss. It is an ideal large-scale integrated circuit heat dissipation substrate and packaging material.

1. High thermal conductivity

Aluminum nitride ceramics have very high thermal conductivity, with a theoretical value of up to 320W/m·K, which is much higher than traditional alumina ceramics. This makes aluminum nitride ceramics an ideal heat dissipation material, suitable for electronic devices, LED lighting, laser equipment and other fields, effectively improving the efficiency and life of the equipment.

2. Excellent electrical insulation

Aluminum nitride ceramics substrate have good electrical insulation, low dielectric constant, small dielectric loss, and remain stable at high frequencies. These characteristics make it a preferred material in high-frequency and high-power electronic equipment, such as high-frequency circuit substrates, power module packaging, etc.

3. Good thermal expansion matching

The thermal expansion coefficient of aluminum nitride ceramics substrate is about 4.5×10^-6/K, which is very close to semiconductor materials such as silicon (Si) and gallium arsenide (GaAs). This makes aluminum nitride ceramics an ideal substrate material for semiconductor devices, helping to reduce thermal stress and improve device reliability and stability.

Based on the advantages of ceramic substrates such as good thermal conductivity, heat resistance, insulation and low thermal expansion coefficient, in addition to battery systems, ceramic substrates are widely used in power electronic device packaging. At present, ceramic substrates are mainly used in IGBT, LD device packaging, LED packaging, chip packaging modules, etc.

Silicon Carbide and Silicon Nitride Ceramic Piston and Plunger For Filling Epoxy Resin

Innovacera supply ceramic piston and plungers with all kinds of materials, such as alumina ceramics, zirconia ceramics, silicon nitride and silicon carbide. Ceramic piston and plungers are main components for water jetting pumps, high pressure pumps and mud pumps. The ceramic piston and plungers are widely used for filling equipment, medical equipment, environmental engineering, petroleum and chemical a industries.

Filling machine generally need piston and plunger for filling materials, some filling machine equipment request wear resistance, corrosion resistance and chemical inertness, then the silicon nitride and silicon carbide ceramic piston and plungers are very suitable and it is widely use for filling the epoxy resin.

If your plant need filling the epoxy resin or you have equipment need filling epoxy resin, welcome to contact us for the silicon nitride and silicon carbide ceramic piston and plunger. Silicon nitride (Si3N4 ceramic) is black or dark grey colors, it is a non-oxide structural ceramic material and can be polished to give a smooth and strikingly reflective surface appearance. Its main properties is its high thermal shock and chemical inertness, main applications include filling machine, metal forming, industrial wear situations and molten metal handling and so on.

Below is silicon nitride and silicon carbide ceramic piston and plungers features for your reference:

Excellent Acid and alkali resistance
Good self-lubricity
Low coefficient of friction for movement
Good wear resistance
Excellent mechanical strength
High corrosion resistance
Reduced engine noise
High abrasion resistance
Reduced fuel consumption
Excellent surface finish
Increased service life

Below is our general sizes of silicon nitride and silicon carbide ceramic piston and plungers:

1	Piston	φ90.6φ17149
1	Sleeve	φ110φ90.6152
2	Piston	φ90.6φ1740
2	Sleeve	φ110φ90.6152
3	Piston	φ70φ17.5148
3	Sleeve	φ90φ70152
4	Piston	φ60.6φ13148
4	Sleeve	φ80φ60.6152
5	Piston	φ60.6φ1340
5	Sleeve	φ80φ60.6152

(Customized dimension is also available for us, if you have drawing, pls don’t hesitate to contact us.)

If you’re happen to looking for the new material of plunger or piston such as silicon nitride ceramic supplier for filling the epoxy resin, INNOVACERA is your good choice. Innovacera has established a high standard of quality system and strict quality control process, each batch of products are subjected to strict quality inspection, and different packaging requirements for different products to ensure the safe transportation of products.In order to ensure quality, the company adopts advanced finished product inspection equipment and standardized Gage calibration;Including automatic inspection equipment, coordinate measuring instrument, etc.

Innovacera technical ceramic piston and plunger are widely used in many industries, such as Package, Semiconductor, Aerospace, Electronic and Electrical, Fluid Controlling, Food Processing, Automotive, adn Medical Industry.

Zirconia Ceramic V Groove Parts For Optical Fiber Fusion Splicer

The Zirconia Ceramic V-Groove is an important part of the optical fiber fusion splicer. Its function is to fix and support the left and right optical fibers in the fusion splicing process. It is used in ribbon optical fiber fusion splicer for fusing ribbon optical fiber, leather wire fusion splicer for fusing covered cables and jumpers, and polarization maintaining optical fiber fusion splicing machine for fusing polarization maintaining optical fiber, etc.

Zirconia ceramic is commonly used in optical fiber fusion splicers for several reasons:

Low thermal expansion: Zirconia ceramic has a low coefficient of thermal expansion, which means it doesn’t expand significantly when exposed to high temperatures. This property ensures that the splicer maintains a stable structure during the fusion process.
Chemical resistance: Zirconia ceramic is highly resistant to chemicals, including acids and alkalis. This resistance ensures that the ceramic components remain intact and unaffected by the chemicals used in fiber splicing.
High temperature resistance: Zirconia ceramic can withstand high temperatures, making it suitable for use in the heating elements of fusion splicers.
Excellent electrical insulation: Zirconia ceramic is an electrically insulating material, preventing any unwanted electrical currents from interfering with the fusion process.
High mechanical strength: Zirconia ceramic has a high strength-to-weight ratio, making it the perfect material for components that need to withstand mechanical stress during fiber splicing.

Zirconia ceramic provides the necessary mechanical strength, thermal stability, electrical insulation, and chemical resistance required for the efficient and reliable fusion splicing of optical fibers.

What are the Key Factors To Consider in Boron Nitride Atomizer Nozzle Design

Boron nitride atomizer nozzles for powder metal atomization play a crucial role in the atomization process. These nozzles are responsible for converting molten metal into fine powder particles, which are then used in various industries such as automotive, aerospace, and electronics.

There are different types of boron nitride atomizer nozzles used in powder metal atomization, including gas atomizers and water atomizers. Gas atomizers use high-pressure gas to disintegrate a molten metal stream into tiny droplets, which solidify into powder particles as they cool down. Water atomizers, on the other hand, use water jets to break up the molten metal stream into powder particles.

The design and construction of boron nitride atomizer nozzles are critical for ensuring efficient and effective atomization. Some key factors to consider in boron nitride atomizer nozzle design include:

Nozzle geometry: The shape and size of the nozzle play a role in determining the droplet size and spray pattern. Different geometries can be used to achieve specific particle size distributions.
Nozzle material: The material used to construct the nozzle should have high toughness and resistance to wear and corrosion. Common materials include stainless steel, tungsten carbide, and ceramic.
Nozzle cooling: Atomizer nozzles need to withstand high temperatures, and cooling mechanisms such as water jackets or internal channels can be used to prevent overheating.
Nozzle alignment: Proper alignment of atomizer nozzles is crucial for achieving consistent powder particle size and distribution. Precision alignment systems are employed to ensure accurate positioning of the nozzle during atomization.

Boron nitride atomizer nozzles are typically custom-designed to meet specific requirements, such as the desired powder particle size range and production capacity. Advanced manufacturing technologies, such as additive manufacturing, are now being used to produce atomizer nozzles with complex geometries and improved performance.

Boron nitride atomizer nozzles are key components in powder metal atomization, enabling the production of high-quality powder particles used in a wide range of applications.

Technical Ceramics Alumina

What is Alumina

Aluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al2O3.It is one of the most popular fine ceramic material families worldwide. Encompassing a range of grades – characterized primarily by purity – coarse and dense alumina is renowned as one of the greatest materials in terms of price-to performance ratios. Aluminum Oxide ceramics can subsequently service one of the broadest industrial cross-sections of any oxide ceramic on the market.

It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium oxide. It is commonly called alumina and may also be called aloxide, aloxite, or alundum in various forms and applications. It occurs naturally in its crystalline polymorphic phase α-Al2O3 as the mineral corundum, varieties of which form the precious gemstones ruby and sapphire.

Alumina one of the most widely used technical ceramics

Alumina is a technical ceramic widely used owing to its exceptional properties such as high hardness, strength, and excellent resistance to wear, corrosion, and high temperatures. By largely dispensing with the usual sintering aids, the corrosion resistance of the grain boundary chamfer could be developed to the best level. Material development perfected over decades enables the production of large components that are unique in these dimensions for high-performance ceramics. Due to the fine microstructure, brilliant surface qualities can be achieved by fine machining.

The most important material properties of alumina (Al2O3) in brief:

Good Mechanical strength
Good temperature resistance
Good thermal conductivity
Excellent electrical insulation
High hardness
High wear resistance
High corrosion resistance
Outstanding surface qualities

Alumina ceramic composition(Al2O3 purity 95% to 99.99%):

Ordinary alumina ceramics 95% Alumina ceramic, 96% Alumina ceramic, 99%Alumina ceramic, 99.7% Alumina ceramic High purity alumina ceramics 99.9% Alumina ceramic, 99.7% Alumina ceramic.

Different alumina ceramic components have different performance and service life.

The ceramic material has established itself as extremely versatile in numerous application areas,
such as extruder screws, nozzles, and slide rings in mechanical and plant engineering, but also
in high-temperature technology.

Use of Alumina

1. Electrical Insulation

Alumina is an insulating material, making it ideal for use in high-temperature and high-voltage applications. Alumina ceramics are used in the production of heating elements, electrical insulators, and other electrical components.

2. Refractory Material

One of the most significant applications of alumina in the ceramics industry is as a refractory material. Due to its high melting point, alumina is used as a lining material in high temperature furnaces and kilns. Alumina also provides excellent thermal shock resistance, making it an ideal material for use in refractory applications.

3. Grinding Media

Alumina is also used as a grinding media in the ceramics industry. The hardness and wear resistance of alumina make it an ideal material for use in grinding applications. Alumina grinding media are used in ball mills, vibratory mills, and other types of grinding equipment.

4. Ceramic Substrates

Alumina is widely used as a substrate material in the production of electronic components, such as microchips and circuit boards. Alumina substrates are highly resistant to thermal and mechanical stresses, making them ideal for use in harsh environments. Additionally, alumina substrates provide excellent electrical insulation and high thermal conductivity.

5. Biomedical Applications

Alumina ceramics are widely used in the biomedical industry due to their excellent biocompatibility and resistance to wear and corrosion. Alumina ceramics are used to manufacture dental implants, joint replacements, and other medical devices.

Conclusion

Alumina Ceramics are the most highly regarded and widely used of the ceramic products. It can be processed as tubing, sheets, bars, rods, discs, and many other forms depending on the requirements of the project, which is widely used in automotive, petro-chemical, fluid control, material transfer, industry, electrical and electronic, semiconductor.

Boron Nitride Ceramic Amorphous Strips Nozzles For Amorphous Alloy Strip Production

A boron nitride ceramic nozzle is a specialized tool used in the production of amorphous alloy strips. Amorphous alloys are a class of materials with a disordered atomic structure that offers unique electric, magnetic and mechanical properties, and their history counts approximately 40 years.

In recent years, amorphous alloy industry technology have developed rapidly, so higher requirements have been put forward on the nozzle materials used in the key of tape production. The boron nitride composite ceramic material developed for amorphous strip production has excellent high temperature resistance, corrosion resistance, thermal shock resistance, creep resistance and easy processing properties, which can meet the production of various amorphous strips, especially suitable for the needs of broadband amorphous strip production.

During amorphous alloy strips production process, a boron nitride ceramic nozzle is employed to deliver a precise and controlled flow of molten amorphous alloy onto a rotating wheel. The nozzle can withstand high temperatures, corrosive environments and boron nitride ceramic provides excellent thermal conductivity, ensuring proper heat transfer and cooling of the alloy strip. This helps to maintain consistent material properties and prevent deformation during production. The smooth surface of the nozzle also assists in the smooth and uniform deposition of the alloy onto the wheel, resulting in a high-quality final product.

Additionally, boron nitride ceramic has a low coefficient of friction, reducing frictional wear and tear on the nozzle. This results in increased nozzle lifespan and minimized maintenance requirements, contributing to overall cost-efficiency.

Amorphous metal alloy strip is produced by rapidly cooling the melt on a rapidly rotating drum. The manufacturing process is briefly described as follows: Put the “master alloy” into an induction furnace and heat it to the melt temperature of 1200-1300°C, and keep it at this temperature for a certain period of time. The melt is poured into the rotating copper drum through the nozzle, cooled and Separate the ribbon from the roller. The cooling speed reaches 106K/s, and the drum linear speed is 30m/s. Such high melt cooling rates and the presence of amorphizing agents in the melt allow “freezing” of liquid metal without producing crystals. The manufacturing scheme is shown in Figure 1.

(Figure 1)

Performance:
1.The optimized formula and unique process make it highly resistant to thermal shock and high-temperature creep. Maximum using temperature 1700 ℃.
2.Low thermal expansion coefficient, no cracking or deformation during use.
3.Strong erosion resistance, wear resistance and metal corrosion resistance. Long service life.
4.Good raw materials, process control, product stability.

Density (g/cm3)	Operating temperature	Bending strength	Leeb hardness	Thermal expansion	Thermal conductivity	Compressive strength	Compostion
2.3	1700°C	60 Mpa	450 HL	1.9*10-6/k	35 W/mk	145 Mpa	BN+ZrO2+SiC

Boron nitride ceramic nozzle is a crucial component in the production of amorphous alloy strips. Its excellent thermal conductivity, corrosion resistance, and low friction characteristics improve process reliability, product quality, and overall efficiency.

What are the Applications of Ceramic Ferrules

Ceramic ferrule is a core component used in fiber optic connectors, usually made of high-purity zirconia ceramic material. Its main function is to fix the optical fiber and ensure the stability and accuracy of the optical fiber connector. The production process of ceramic ferrules includes powder preparation, molding, sintering and processing. Its manufacturing requirements are very high, and parameters such as dimensional accuracy, roundness, and surface roughness need to meet standards to ensure the performance and reliability of fiber optic connectors. Ceramic ferrules are widely used in communications, energy, transportation, aerospace and other fields.

The application of ceramic ferrules:

In high-voltage switchgear, ceramic ferrules can be used to support high-voltage electrodes to protect the stability of electrical equipment. In addition, in high-temperature situations, such as electric stoves and electric heaters, ceramic ferrules can withstand high temperatures and work stably without losing their function due to temperature changes.
Ceramic ferrules also have important applications in the electronic field. For example, ceramic ferrules can be used as high-frequency circuit components such as filters, couplers, and transformers. In addition, ceramic ferrules also have good insulation properties and can be used for insulation and isolation of electronic equipment, thereby ensuring the safety of electronic equipment.
In the field of communications, ceramic ferrules also play an important role. For example, in radio frequency devices, ceramic ferrules can be used to support and secure conductors, thereby improving the operating frequency and stability of the device. In addition, in optical communication equipment, ceramic ferrules can also be used to support and fix optical fibers to ensure the stability and high-speed transmission of communication equipment.

Injection molding ferrule is a process for making ceramic ferrules. The specific steps are as follows (for example):

1. Use specially processed yttrium-stabilized nano-zirconia powder raw materials for granulation.
2. Injection molding is performed in a special mold to form a blank.
3. The blank is sintered at high temperature to make a ceramic ferrule blank.
4. Precisely grind the blank to achieve sub-micron processing accuracy, thereby obtaining ceramic ferrule products with good rigidity and high precision.

Overall, the zirconia ceramic ferrule plays a critical role in maintaining the performance and reliability of fiber optic connectors, making it a vital component in telecommunications and data communication systems.

MCH Heater Rod Used For Moxibustion Bed

Moxibustion is a type of moxibustion in traditional Chinese acupuncture therapy. It mainly ignites moxa sticks and moxa sticks made from moxa leaves, and smokes and roasts acupuncture points on the human body to achieve health care and treatment. It is a natural therapy.

Recently we make MCH (Metal Ceramic Heater) heater rod used for moxibustion bed, and the feedback is very good.

The Main Reason is As Below Advantages of Our MCH (Metal Ceramic Heater) Heater:

1. The structure is simple, and the shape, size and resistance power can be produced according to customer needs;
2. Good thermal uniformity and high power density: ≥45 W/cm2;
3. The resistance-temperature change is linear, and the temperature can be easily controlled by controlling the resistance or voltage;
4. Rapid heating and fast temperature compensation;Built-in 12 moxibustion bowls, can automatically ignite 12 moxa sticks at the same time, greatly saving waiting time
5. High thermal efficiency, uniform heating, and energy saving (unit heat consumption saves 20 to 30% compared to PTC);
6. No open flame, safe and non-charged on the surface;
Good insulation performance: the surface is safe and uncharged: it can withstand the voltage test of 3700V/1S;
7. Long life, no power attenuation after long-term use;
8. The heating piece is resistant to acids, alkalis and other corrosive substances;
9. Environmental protection: does not contain harmful substances such as lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, etc.
Fully complies with EU environmental protection requirements.

Innovacera is very good at providing ceramic heating solution with different applications, if you have any project need fast heating or energy saving, pls feel free to contact with us. We are very happy to offer more solution for you.

Sealed Electrical Connectors: Why Upgrade to Ceramic Seals

When engineers design seals for electrical connectors like feedthroughs, they typically consider four common materials. At the low end, simple epoxy resins or adhesives suffice. Alternatively, mechanical seals with elastomeric O-rings provide a more robust solution. For applications demanding more, glass seals effectively prevent leaks during extreme temperature, pressure, and humidity variations.

For top-tier performance, ceramic seals reign supreme, boasting excellent heat resistance, mechanical shock resistance, and corrosion resistance. However, the superior performance of ceramics over glass comes at a cost. Ceramic materials are typically more expensive, and ceramic-metal seals require more complex engineering and manufacturing processes.
Innovacera suggests using ceramic seals when glass seals fail to meet demanding performance requirements. For instance, aerospace applications demand high heat and mechanical shock resistance, while medical implant devices require excellent corrosion resistance and biocompatibility. Outstanding dielectric properties are crucial for high-voltage and high-current laser applications.

Advantages of Ceramic Seals

Ceramic-metal seals offer several benefits over glass-metal seals, including stronger hermetic sealing and better electrical insulation properties. Innovacera primarily utilizes 95% alumina, 99% alumina, and sapphire.
Properly designed ceramic-metal seals maintain hermeticity under various harsh conditions, such as high and low temperatures, corrosive environments, high pressure, and high vacuum. Ceramic-metal seals boast an industry-standard leak rate significantly lower than glass seals, indicating superior sealing.
Ceramic-metal seals withstand severe thermal shocks and repeated thermal cycling, remaining stable at extremely high and low temperatures. They exhibit high mechanical strength, making them less prone to breakage under high vibration and high g-load conditions compared to glass seals.

Advantages of Brazing

Ceramic-metal seals use brazing to join ceramic and metal components, producing strong bonding and excellent sealing. Brazing works well for metals and alloys that do not bond well with glass. Ceramic-metal seals exhibit good bonding with copper, copper alloys (CuNi), nickel, and nickel alloys (such as Monel, Alumel, Nial).
Compared to glass seals, the presence of brazing metal between the base metal and ceramic substrate enhances the system’s robustness. Brazing materials are more flexible than ceramics, absorbing some mechanical shocks and helping to mitigate mismatches in thermal expansion between ceramics and substrates.

Typical Applications

Ceramic-metal components play a crucial role in implantable electronic devices and aerospace applications due to their ability to withstand high temperatures, vibrations, and mechanical shocks. They are common in seals for gas turbine engine thermocouples, fuel line components, and fire detection system terminals.

Manufacturing Process:

To prepare ceramics for brazing, the surface undergoes metallization. Innovacera primarily employs thick-film and thin-film metallization technologies to ensure proper bonding and integration of ceramic-metal components. All components undergo comprehensive testing to ensure quality and consistency.

Innovacera Invite You To Visit Us At APE 2024 Exhibition On FM-30

Innovacera will attend ASIA PHOTONICS EXPO on March 6th-8th . If you happen to have attended or visit them, too, welcome to come to meet us at the exhibition. Below is more information about our APE 2024.

Exhibition Name: APE 2024
Date: March 6th-8th, 2024
Location: Marina Bay Sands Singapore
Ceramitec 2024 Scale: -15,000 M²
Visitor: 5000+
Exhibitors: 400+

Innovacera Advance Ceramic Material will show: Alumina Ceramic, Zirconia Ceramic, Aluminum Nitride, Boron Nitride Ceramic, Porous Ceramic, Silicon Nitride Ceramics, Beryllia Ceramics, Machinable Glass Ceramic, Silicon Carbide Ceramics.
Exhibition Web: https://www.asiaphotonicsexpo.com/
Innovacera Booth No.: FM-30

APE (Asia Photonics Expo) stands as the premier photonics exhibition for branding and business connection. This influential event focuses on the cutting-edge innovations in optical communications, optics, semiconductor, lasers, sensing, and display. It provides a brand-new trade platform to showcase state-of-the-art products, technologies, and solutions to industry professionals.

Held in Singapore, the international hub of Asian trade, APE will be your first stop to explore Asian market, also the best channel to maximize brand awareness and expand new business frontier.

Innovacera will exhibit all kinds of technical ceramic components such as Ceramic to Metal sealing part, Metallized Ceramics, Ceramic Reflector Cavities, Ceramic Substrates, AMB Substrate, DBC, DPC, and so on.
Innovacera Vission is: To be the most reliable supplier of advanced materials components and Mission is Winning with our customers and employees.
Innovacera cordially invites all old customers, industry professionals, partners, and enthusiasts to visit booth FM-30 at APE 2024.

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