Why Aluminum Nitride (AlN) ceramic is a preferred choice for substrate and thermal management applications?

Aluminum Nitride Ceramic (AlN) is a special ceramic material that combines high thermal conductivity with high electrical resistivity. Only a few ceramics possess high thermal conductivity: Such as Beryllium Oxide (BeO) and cubic Boron Nitride (c-BN) are virtually the only other examples. However, the use of BeO is restricted due to its powder toxicity, and c-BN is very difficult to produce.

Also, the material is suitable for further processing with thick and thin-film technology aluminum nitride is an ideal material for applications in telecommunications technology.

Aluminum nitride ceramic is therefore used as a substrate for semiconductors, as well as for high-power electronic parts, housings, and heat sinks.

The Application of Zirconia Ceramic Materials in Automobiles

Compared with alumina ceramics, zirconia ceramics have more than three times the strength and can withstand high temperatures above 1000 degrees Celsius. The new materials promote the development of new applications in automobiles.

1. Application of Ceramics in Automobile Engines
To reduce the fuel consumption of diesel engines by more than 30%, it can be said that new ceramics are indispensable materials. The thermal efficiency of the diesel engine is 33%, which is very superior compared to the gasoline engine, but still, more than 60% of the thermal energy is lost. Therefore, in order to reduce this part of the loss, the combustion chamber is surrounded by ceramic materials with good thermal insulation performance for thermal insulation, and then the exhaust gas turbocharger and power turbine are used to recover the exhaust energy. Tests have proved that this can increase the thermal efficiency to 48%.

2. Application of Special Sensitive Ceramics in Automotive Sensors
The requirements for automotive sensors are that they can be used for a long time in the harsh environment unique to automobiles (high temperature, low temperature, vibration, acceleration, humidity, noise, exhaust gas), and should have the characteristics of small size and lightweight, good reusability, and wide output range. Ceramic heat resistance, corrosion resistance, wear resistance, and its potential excellent electromagnetic and optical properties have been fully utilized with the advancement of manufacturing technology in recent years, and sensors made of sensitive ceramic materials can fully meet the above requirements.

3. The application of ceramics in automotive brakes
Ceramic brakes are built on the basis of carbon fiber brakes. A carbon fiber brake disc is initially composed of carbon fiber and resin. It is pressed into shape by a machine, and then heated, carbonized, heated, and cooled to make a ceramic brake. The hardness of the carbon-silicon compound surface of the ceramic brake is close to that of a diamond. The inner carbon-fiber structure makes it strong and resistant to impact and corrosion, making the disc extremely wear-resistant. At present, this kind of technology is not only used in F1 racing cars but also involved in super civilian sports cars, such as Mercedes-Benz’s CL55 AMG.

4. The application of ceramics in automotive shock absorbers
The shock absorber of the car is an intelligent shock absorber successfully developed by comprehensively utilizing the sensitive ceramic positive piezoelectric effect, inverse piezoelectric effect, and electrostrictive effect. Due to the use of high-sensitivity ceramic components, the shock absorber has the function of identifying the road surface and self-adjusting, which can minimize the vibration of the car caused by the rough road surface.

5. Application of ceramic materials in automobile spraying technology
In recent years, ceramic thin film spraying technology, which is widely used in aerospace technology, has begun to be applied to automobiles. The advantages of this technology are good thermal insulation effect, high temperature and high-pressure resistance, mature technology, and stable quality. In order to achieve the goal of low heat dissipation, ceramic spraying can be applied to the engine combustion chamber components, such as zirconia sprayed on the top of the piston and zirconia sprayed on the cylinder liner. The engine after this treatment can reduce heat dissipation loss, reduce the weight of the engine itself, reduce the size of the engine, and reduce the fuel consumption.

If you have more interests, pls feel free to contact us.

Application case of Ceramic Micropore Chuck in semiconductor display panel photovoltaic medical industry

Ceramic Micropore Chuck adopts microporous ceramic material by special technology, which has uniform pore size distribution, and internal interconnection. After grinding, the surface is smooth and delicate and has good flatness.

It is widely used in semiconductors, electronic devices, film products, and other industries that require vacuum chuck equipment.

The following are detailed application cases

1. Semiconductor and Microelectronics

• Wafer cut.
• Wafer grinding.
• Wafer cleaning.
• Wafer AOI detection.

2. Display panel and mobile electronics

• LCD release film, AOI detection.
• OLED laser cutting, AOI detection.
• Touch Panel OCA fit.

3. Photovoltaic and new energy

• Photovoltaic film transfer and lamination.
• Fixed by laser welding.
• Single/polysilicon handling.

4. Flexible circuit

• PI film transfer and lamination.
• PI film AOI detection.

5. Precision Manufacturing

• Visual detection fixed.
• Laser processing fixed.
• Metal foil handling and fixing.
• Transport and fix in the vacuum chamber.
• Handling and fixing of fragile materials.
• Porous and breathable material handling and fixing.

China’s industrial ceramics industry market analysis

The Chinese government has included industrial ceramics in these new materials industry in the 13th Five-Year National strategic development plan. The new materials industry is one of the seven strategic emerging industries in China and one of the ten key development areas of Made in China 2025. The Chinese government has established an insurance compensation mechanism for the first time, and pilot work has been carried out on a number of new materials. Enterprises using the first batch of new materials are the beneficiaries of insurance. It aims to make institutional arrangements for the risk control and sharing of the application of new materials by means of insurance, break through the market bottleneck of the initial application of new materials, and activate the effective demand of the downstream industry for new materials products. In addition, local governments at all levels have also issued policies to support the development of the industrial ceramics industry, increase support for the construction of an advanced ceramic industry chain, and open public service platforms to support industrial ceramics material cooperation projects and achievement of transformation projects, which will promote the rapid development of industrial ceramics industry. It is expected that by 2025, the market value of Chinese industrial ceramics will reach 2541.11 million USD.

Industrial ceramic components include oxide ceramic components, such as alumina ballistic plates, zirconia y2o3 stabilized rods, and non-oxide ceramic parts, such as silicon nitride bar, Aluminum nitride substrates, boron nitride nozzles, and so on. Industrial ceramics have high wear resistance, high insulation and corrosion resistance, as well as extremely high durability and hardness. They can be used for a variety of applications in electronics, machinery, automotive, and industrial processing industries.

Electronics industry ceramics are used in components of active and passive devices, enabling high-performance electronics to be used in a variety of environments and applications, such as aerospace, automotive, communications, computers, medical, and a variety of electronic instruments, and industrial equipment, and consumer appliances.

Many industrial ceramics can withstand high temperatures while still maintaining their mechanical and electrical properties. This property makes ceramics suitable for high-temperature applications such as furnaces, jet engines, braking systems, and cutting tools.

Hot Pressing Machinable Boron Nitride Ceramics

Machinable Boron Nitride ceramic is made by hot pressing Boron Nitride powders at high temperature and pressure. In its solid form, boron nitride is often referred to as “white graphite” because it has a microstructure similar to that of graphite. Innovacera Boron Nitride can easily be machined into rods, bars, plates, and other custom shapes. Innovacera Boron Nitride billet max size is 420*430*220mm and have many years of experience in producing and processing boron nitride ceramic part.

Innovacera Boron Nitride offers excellent electrical, thermal, chemical and mechanical properties as below:

• Excellent thermal shock resistance
• High electrical resistivity
• High thermal conductivity
• Good chemical inertness
• High temperature material
• Excellent lubricating properties — low coefficient of friction
• Non-wetting (without oxidation)
• High dielectric breakdown strength
• Excellent machinability

Because above advantages, boron nitride ceramic products are widely used for below applications:

• Molten Metal Contact (Non-ferrous alloys melting refractory components).
• PVD, CVD and Plasma Systems (Insulators).
• High-Temperature Furnaces (Fixtures and Insulators).
• High-Temperature Lubrication and Mold Release
• Solutions for Electronic Cooling
• Dielectric at High Frequencies
• Nuclear reactor shields and linings
• Semiconductor wafers
• Heat radiation shielding
• Transistor heat sinks
• Sputtering targets
• Melting crucibles and boat for glass and metals.
• Amorphous strips Nozzles

Innovacera boron nitride parts such as ceramic insulator parts for furnaces, ceramic crucibles, and boats for melting, nozzles for powder metal gas atomization, and amorphous strips are hot sales products.

If you need any customized boron nitride part, welcome to contact us.

Alumina is Harder than Zirconia, So It Must be More Wear Resistant?

Although it’s commonly accepted that hardness equates with wear resistance, it’s not always the case. In sliding wear environments, hard counter faces that do not interact with each other are an advantage.

The engineering grades of Alumina are typically 25-50% harder than zirconia grade so in sliding wear environments or pure abrasive wear, where third body abrasive wear particles are present, alumina often outperforms Zirconia.

However, in erosive wear environments such as those caused by an abrasive slurry impacting a wear part such as an oilfield valve, Zirconia can be the best performer. Its high toughness reduces the spread of impact cracks and the microfracture of the surface which generates erosive wear debris and surface damage.

When running an engineering ceramic against a dissimilar material it’s not always the case that the softer material performs poorly. Y-TZP running against Y-TZP has been shown to be a very poor wear surface combination, whereas, Y-TZP running against cast iron provides a better overall wear performance than the harder, alumina/cast iron combination.

Although it’s beyond this article to delve too deep into the tribology of ceramic interfaces, in Zirconia on Zirconia contact it’s the low thermal conductivity of the Zirconia that can be a negative factor, as the frictional heat generated in like on like sliding does not dissipate from the surface and the surface hardness decreases with a follow on increase in wear-related damage.

Boron Nitride Isolation Components For PVD CVD Magnetron Sputtering Systems

Boron Nitride is a high temperature, lubricious ceramic. It offers excellent electrical resistance, chemical stability, and wet ability.

Boron nitride shapes and ceramic components are critical components in applications where excellent thermal shock resistance, high electrical resistivity, and chemical and corrosion resistance are required.

Physical vapor deposition refers to the extensive range of vacuum-based thin-film coating methods employed for surface engineering of a variety of materials. Employing one of the several methods to generate and deposit target material onto a substrate surface, including sputter deposition, PVD Coating methods are commonly used in the construction of optoelectronic devices, precision components for automotive and aerospace, and more.

Sputtering is a unique process where particles are forcefully ejected from a target material by sustained plasma bombardment. Boron nitride ceramics are broadly used to constrain plasma arcs in sputtering chambers onto the target material and prevent erosion of integral components in the process chamber.

BN ceramic components such as insulating shrouds and rails, target frames, protective tubes, shields, and liners as well as insulators ensure that the PVD arc remains constrained towards the target, preventing equipment damage.

Innovacera 99% BN is commonly used as an alternative for Pyrolytic Boron Nitride in these applications.

Ceramic Nozzle Holder For Fiber Laser Cutting Head

INNOVACERA not only produce ceramic reflector but also make ceramic ring holder for leaser cutting head now. There’re some regular types of ceramic holders. Customized design is also available for us.

Regular types are as below.
Type A
Outside Diameter: 28/24.5mm, Thickness: 12mm
( For Precitec WSX HSG… )

Type B
Outside Diameter: 32/28.5mm, Thickness: 12mm
( For Raytools Bodor )

Specifications:
Material: Alumina ceramic
The installation type: Internal thread connection
Application: Fiber laser cutting machine

Features:

• Excellent conductivity
• High sensitivity
• Applicable to the major brands of laser cutting head
• Ceramic + high-quality alloy Ensure the consistency of thermal expansion of each material of ceramic ring To prevent the blowout
• Ceramic and alloy close bonding, heating without deformation, high surface finish, airflow is more smooth

What makes the ceramic heating element the core part of a Vaporizer?

Not every dry herb vaporizer is the same! Especially those using ceramic heating elements.

The ceramic heating element is a safety and healthiest option for dry herb vaporizers, so every vaper is preferred to choose those vaporizers that carry ceramic heating element.

The proponents believe that the heating element is the core of the vaporizer and primarily dictates the experience of the taste.

Let’s be more specific, when a vaper burns tobacco, marijuana, or hemp during traditional smoking to release the active component, whether it’s nicotine, CBD, or THC, they inhale the smoke. We all know that’s not good for health.

Rather than burning, Vaporizer heats the liquid, wax, or even dry herb to release a vapor, and a vaper inhales the vapor without any damage to their lungs or throat.

And why the ceramic heating element is becoming the core part of the vaporizer?

It’s mainly because:
1. Ceramic is inert, so the ceramic heating element won’t chemically interact with the herbs during the vaporization process.
2. Ceramic has melting points over 3000°F, it burns at a higher temperature than aluminum, making it the safe and cleanest option for vaporizers.
3. Good thermal conductivity, it conducts heat to maximize vapor production and flavors without reaching the point of combustion or burning the herbs.
4. Excellent corrosion resistance and wear resistance, compared to the glass heating element, it’s less fragile.

Pyrolytic Boron Nitride (PBN) Disc for Furnace, Electrical, Microwave, and Semiconductor Components

Pyrolytic Boron Nitride (PBN) is a kind of advanced ceramic, Pyrolytic Boron Nitride (PBN) Disc and other pyrolytic boron nitride products are synthesized on the mold by chemical vapor deposition (CVD) process, with BCl3 and NH3 at high temperature and low pressure. PBN products are extremely pure, as the purity of gas material is easier to be controlled. Typically, PBN products have a total impurity of <100 ppm, which means the purity is no less than 99.99%. With such a high purity level. It is the ideal material for furnace, electrical, microwave, and semiconductor components.