Alumina powder, also known as α-Al2O3 powder or alumina, is a white amorphous powder with unique physical and chemical properties. Its chemical formula is Al2O3, molecular weight is 102, melting point is between 2010℃2050℃, boiling point is 2980℃, density is 3.94.0g/cm3, and it is insoluble in water.
1.Properties of alumina powder
High hardness and wear resistance: Alumina powder has higher hardness than steel and has significant wear resistance.
High temperature stability: Alumina powder has stable performance in harsh environments such as high temperature and high humidity.
Excellent insulation: Alumina powder has high resistivity and good insulation properties.
Chemical stability: Alumina powder is not easily corroded in acidic and alkaline environments and has good chemical stability.
Porosity: Alumina powder has a porous structure and can adsorb and support other substances.
2.Uses of Alumina Powder
Ceramic Industry: Alumina powder is an important raw material in ceramic products, used to manufacture high-end porcelain, daily porcelain, electric porcelain, glazed tiles, colored glaze tiles, etc. It can improve the hardness and wear resistance of ceramics, enhance the chemical stability of ceramics, and make them less prone to corrosion in acidic and alkaline environments. In addition, alumina powder can also be used to prepare high-performance ceramic fibers and composite materials.
Paint Industry: Alumina powder can improve the adhesion and weather resistance of paints, enhance the anti-aging properties of paints, and extend the service life of coatings.
Plastic Industry: Alumina powder can be used as an additive for plastic products to manufacture plastic pipes, plastic plates, plastic profiles, etc. It can improve the hardness and wear resistance of plastics and enhance the insulation properties of plastics.
Catalyst: Alumina powder has a wide range of applications in the field of catalysts. It can be used as a carrier for catalysts to improve the activity, selectivity and stability of catalysts.
Electronic Manufacturing Field: Alumina powder has excellent insulation properties and high temperature stability, so it is widely used in the field of electronic manufacturing. For example, it can be used to manufacture circuit boards, electronic packaging materials, radiators, etc. In addition, its high hardness and wear resistance can also be used to manufacture high-precision molds and precision parts.
Automobile manufacturing field: Alumina powder can be used to manufacture engine parts, brake systems, suspension systems, etc. to reduce the weight of the car and improve its performance.
Aerospace field: Alumina powder can be used to manufacture engine parts, high-temperature structural parts, etc. for aircraft and rockets.
Biomedical field: Alumina powder has good biocompatibility and corrosion resistance, and can be used to manufacture medical implants such as artificial joints and dental implants.
Other fields: Alumina powder can also be used to manufacture high-temperature filter materials, grinding materials, electrodes, etc. In addition, it can also be used in food, papermaking and other fields.