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aluminium metal fine powder

Aluminum is often considered to be one of the metals that lends itself well to the production of powder coatings and pigments. The tensile characteristics of aluminum powder metal can be measured in a number of different ways, depending on the particle size. In the following paragraphs, we will go through some of the most important applications for powder coatings and pigments made of aluminum.


In earlier quick reactions, Al(OH)4- ions in a paste are reduced, and the reaction takes place rapidly. When cement is added, the strength of this reaction decreases.

Aluminum metal is a component of the chemical known as alumina oxide. It is a crystal that is completely odorless and white in color, and its refractive index is 1.768. Insulation for electrical currents and tunnel barriers in superconducting devices are two of the many applications for aluminum oxide. In addition to this, it is used as a catalytic support for a wide variety of industrial catalysts. Tiles designed for high wear regions are often made with aluminum oxide as an ingredient. In addition to that, it can be utilized to make an alumina gel.

Through the use of the Bayer method, aluminum oxide may be extracted from bauxite. The Bayer method is utilized in a variety of commercial applications, including waste water treatment plants and the making of paper products. Aluminum hydroxides, including a- and b-trihydrates, are produced as a byproduct of the process. The a-trihydrate has a greater refractive index than the b-trihydrate, in addition to being easily soluble in acidic environments.

The reaction of aluminum oxide with bases results in the formation of aluminum nitride, and the reaction of aluminum oxide with acids results in the production of salt. A substrate for integrated circuits is another application for this material. Its index of refraction is 3.014 grams per cubic centimeter.

In addition, aluminum oxide can act as a catalyst support for a wide variety of other types of industrial catalysts. Its primary constituent element is aluminum, and its chemical make-up also includes 0.3% titanium, 0.3% gallium, and 0.5% iron(III) oxide (Fe2O3).

At a temperature of 25 degrees Celsius, the density of aluminum oxide is 3.965 g/cm3. In fluorine, aluminum has an oxidation number of -2, whereas iron(III) oxide gives it a value of -3, and calcium gives it a value of -4.

When the oxide is exposed to water, the layer begins to corrode, which results in the production of hydrogen gas that is extremely flammable. The degree to which boehmite is formed can vary, depending on factors such as temperature as well as the amount of aluminum metal and aluminum nitride that are present.

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Applications of aluminum powder coatings and pigments

Film thicknesses of fifty to seventy-five microns are usual for the application of decorative powder coatings. A pattern with a fine-grain metallic appearance is produced by using the smallest particles possible. Pigments made of aluminum could also be utilized to produce the desired result. They have the potential to offer advantages such as a tough and long-lasting finish in addition to resistance to the elements. They are especially helpful in procedures involving electrostatic application.

A brilliant and eye-catching sheen can be achieved, depending on the type of aluminum pigment used. A gentle metallic patina may also be produced with the appropriate dosage. In addition to this, they come equipped with unique performance capabilities, such as resistance to chemicals. They can also be utilized to increase the performance of parts that are subjected to high levels of stress.

There are leafing and non-leafing grades of aluminum pigments available to choose from. Leafing grades are susceptible to the corrosive effects of the environment's various chemicals. The non-leafing grades are superior in terms of resistance to abrasion and chemical assault. In addition to this, they are provided in a variety of pigment encapsulation processes.

Powdered aluminum is frequently utilized in the production of ceramics, rocket fuel, epoxy fillers, and paints. The processing of the brazing 6061 aluminum powder, on the other hand, can be a dangerous operation. It also comes at a very expensive price. The careful storage of aluminum-containing powder coatings is recommended in safety data sheets as a way to reduce the likelihood of processing hazards.

Three distinct particle distributions can be assigned to aluminum pigments. Cornflake, spherical, and silver-dollar shapes are examples of these. The spherical grade is not only simpler to prepare but also provides a one-of-a-kind impression that is three-dimensional. The silver-dollar grade shines more brilliantly than the cornflake variety and has a more noticeable iridescence. Additionally, it is suited for use in more advanced applications.

It is possible to cover aluminum pigments with polymers, which can improve their performance in terms of both handling and application. Additionally beneficial to improved electrostatic performance are organic polymers. They also contribute to a more even distribution. They also contribute to the coating being more durable when exposed to the elements.

Pigments made of aluminum can be utilized in the production of decorative fine aluminum powder coatings. They come in a variety of particle sizes, the smallest of which is 1.0 microns and the largest of which is 100 microns. They are also suitable for use in the production of bonded powder coatings. In finishing operations that utilize spray waste, these coatings are frequently used.

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