Overview of Refractory Material Calcined Alumina Powder

Refractory Material Calcined Alumina Powder (α-Al₂O₃) is an advanced ceramic material with ultrafine particle sizes (20-200nm) and high purity (99.9%+). Its exceptional surface area, hardness, and thermal stability make it ideal for high-performance applications, including ceramics, coatings, catalysts, and composite materials.

Key Features of Refractory Material Calcined Alumina Powder

Ultrafine Particle Size – 20-200nm for superior reactivity and dispersion.

High Purity (99.9%+) – Minimizes impurities for precision applications.

Excellent Thermal Stability – Withstands extreme temperatures (up to 1600°C).

Enhanced Mechanical Properties – Improves hardness, wear & corrosion resistance.

Wide Applications – Used in coatings, catalysts, electronics, and advanced ceramics.

(Refractory Material Calcined Alumina Powder)

Specification of Refractory Material Calcined Alumina Powder

Calcined alumina powder is a premium refractory product. It’s made by home heating aluminum hydroxide to extremely high temperatures. This process removes water and changes its framework. The result is a hard, long lasting powder. Its major work is standing up to severe warmth.

This powder has several crucial properties. High pureness is crucial. A lot of grades surpass 99% alumina material. This purity makes sure stability under rough conditions. Fragment dimension issues greatly. We provide various sizes. Fine powders pack densely. Coarser powders offer various flow residential or commercial properties. You pick based on your specific application requirements.

Warm resistance is the standout feature. Calcined alumina endures temperatures more than 1700 ° C (3100 ° F). It does not thaw quickly. It additionally resists thermal shock. This indicates it deals with fast heating and cooling cycles well. Its strength stays high also at peak temperature levels. This avoids fracturing and failing sought after settings.

Chemical security is an additional significant benefit. It stands up to strike from numerous acids and alkalis. Slags and liquified steels generally don’t damage it. This makes it ideal for lining furnaces and kilns. It gives a long-lasting protective barrier. This reduces downtime and maintenance costs.

Thickness and solidity are very important too. Appropriately refined calcined alumina forms very dense frameworks. High density obstructs warm infiltration effectively. It additionally blocks corrosive products. Its severe solidity gives superb abrasion resistance. Parts last much longer under mechanical anxiety.

You locate calcined alumina powder in numerous demanding locations. It lines steel and glass making furnaces. It secures kilns firing ceramics. It’s utilized in crucibles for melting metals. It forms parts for high-temperature sensors. It works as a base for advanced refractory forms. Its integrity makes it a top selection for critical warm control.

(Refractory Material Calcined Alumina Powder)

Applications of Refractory Material Calcined Alumina Powder

Calcined alumina powder is a special product made by heating light weight aluminum hydroxide really hot. This procedure transforms its framework. It ends up being very hard and secure at heats. This makes it useful in lots of markets.

One significant usage remains in porcelains. Factories add it to ceramic bodies. This makes the final products stronger. They likewise last much longer. It assists regulate just how much the ceramic shrinks when terminated. Ceramic ceramic tiles and dinnerware frequently have it. It enhances their high quality.

Refractory products depend upon calcined alumina. Refractories line high-heat tools. Assume steel heating systems or concrete kilns. These cellular linings face severe temperatures. Calcined alumina powder is type in making these refractories. It gives them the capability to resist heat and chemical assault. This keeps the heaters running much longer. It saves cash on repair services.

The rough sector uses a lot of calcined alumina. It’s a main ingredient in grinding wheels and sandpaper. It’s really difficult. This solidity makes it reduced or grind other materials properly. Grinding wheels for metalworking count on it. It offers a resilient cutting surface.

It’s also vital for making advanced porcelains. These are high-performance ceramics utilized in tough jobs. Instances consist of wear-resistant parts or digital substratums. Calcined alumina offers these porcelains their special buildings. It makes them challenging and resistant to warmth and chemicals.

Shops use it in mould coatings. These finishes go on the moulds before pouring molten steel. They produce a barrier. This obstacle gives a smoother coating to the steel casting. It also makes the mould launch the casting extra easily.

Repaint and layers take advantage of calcined alumina also. Included as a filler, it makes layers harder and extra scratch-resistant. It helps the finishing withstand wear with time. Industrial floors or protective finishings typically utilize it.

Chemical processes require stable drivers or driver supports. Calcined alumina works well here. Its high surface and security are excellent for these demanding duties. It takes care of severe chemical settings.

Company Profile

Alumina Technology Co., Ltd,. We focus on the research and development, production and sales of alumina products, serving the electronics, ceramics, chemical and other industries. Since its establishment in 2005, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.

Our products includes but not limited to Alumina Boat, Alumina Crucible, Alumina Dish, Alumina Foam Filter, Alumina Plate, Alumina Rod, Alumina Bar, Alumina Balls, Filter Alumina, Nano Alumina Powder, Spherical Alumina Powder, ect. please feel free to contact us.(nanotrun@yahoo.com)

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of Refractory Material Calcined Alumina Powder

What exactly is calcined alumina powder?
Calcined alumina powder starts as aluminum hydroxide. We heat it to very high temperatures. This intense heat removes water molecules. It changes the crystal structure. The result is a very hard, stable, inert powder. It’s mostly pure aluminum oxide.

What is calcined alumina powder used for?
Its main use is making refractory materials. Refractories handle extreme heat. Calcined alumina makes bricks, castables, and shapes for furnaces and kilns. It’s also used in ceramics, abrasives, and polishing compounds. It provides hardness and heat resistance.

Why choose calcined alumina for refractories?
Calcined alumina offers key benefits. It withstands extremely high temperatures without melting. It resists chemical attack from slags and molten metals. It provides excellent mechanical strength. It creates a dense, stable structure in the final refractory product. This extends furnace life.

Are there different grades of calcined alumina?
Yes, different grades exist. They vary based on purity, particle size, and reactivity. High-purity grades are for critical applications. Particle size affects how the powder packs together. This influences the final refractory’s density and strength. The right grade depends on the specific refractory need.

Is calcined alumina powder safe to handle?
It’s generally safe. It’s chemically inert. Handle it carefully. It’s a fine powder. Avoid breathing the dust. Use proper dust masks. Wear safety glasses. Good ventilation is important. Skin contact might cause mild dryness. Wash skin after handling. Follow the supplier’s safety sheet.

(Refractory Material Calcined Alumina Powder)