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spherical alumina is the solid form of alpha-Al2O3 with spherical shape, good flowability and high purity. It has been widely used as a polishing material in integrated circuit chips and microelectronic mechanical systems. As a polishing material, it can avoid slip marks and improve the brightness of screens. It is also used in chemical mechanical polishing as a carrier for refractory metals, especially in petrochemical production, to reduce abrasion and extend the life of the catalyst.
The global market for spherical alumina is mainly driven by its broad applications in the manufacturing industry. The key factors influencing the growth of the market are increasing demand for spherical alumina as a polishing material, and rising adoption of spherical alumina as an insulating and corrosion-resistant filler in thermal interface materials, and thermally conductive plastics.
Alumina spherical powder can be prepared by ball milling, a method in which the alumina is ground by steel balls and crushed into fine particles. However, the spherical morphology of the resulting alumina is difficult to control when the alumina is prepared by this method. The present invention provides a process for producing uniform spherical alumina by using the homogeneous precipitation method with ammonium sulfate as a precipitant and urea as a diluent.
The market for spherical alumina was divided into segments by region (country), manufacturer, and type. Each segment gives information about the production during the forecast period from 2017 to 2028, consumption, and the growth potential of the respective area.