What is alumina powder?
Alumina powder, also known as aluminium oxide or activated alumina, is a chemical compound that is mainly used to produce aluminium – one of the most important metals in the advancement of a low-carbon economy and throughout the global industry as a whole.
Alumina powder is created from bauxite, the principal ore of aluminium. The bauxite ore consists of a mixture of gibbsite, boehmite, iron oxides, iron hydroxides, quartz, and clay minerals. Alumina is extracted via the Bayer process, where the chemical component Al2O3 (alumina powder) is distilled from the bauxite mineral mixture.
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The unique characteristics that make alumina ideal for aluminium production also make it valuable for a host of other applications, particularly ones that require hardness and resistance to abrasion or other forms of chemical wear. Alumina powder is also ideal for products that require corrosion and wear resistance, and for products that require high thermal conductivity, such as electrically and thermally insulating applications.
Properties of alumina
Alumina has relatively high melting and boiling point, as well as a very high hardness level. Its mechanical and compressive strengths are both higher than many comparative materials, and its electrical resistivity and thermal conductivity make alumina an ideal choice for many electrical products.
What are some of the best uses of alumina powder?
Alumina is a vital material in industrial applications, as well as other areas of science, engineering, and technology. It is used in everything from construction materials and abrasives to biomedical devices and chemical catalysts. Alumina powder is almost as ubiquitous as aluminium itself, which is one of the most used materials in the modern world.
Below are 10 of the most important and useful applications of alumina in various areas of industry.
- Medical industry
- Military and protective equipment
- Gem industry
- Construction materials
- Broad industrial applications
- Sourcing Alumina