Characteristics of High-Temperature Calcined Alumina Powder

High-Temperature Calcined alumina powder, starting with industrial aluminum hydroxide or industrial aluminum oxide, undergoes a precisely controlled high-temperature calcination process to transform it into a crystal-stable α-alumina. This calcined α-alumina is then used as a base for ball milling to produce fine alumina powder. Pure alumina appears as a white, amorphous powder with a density between 3.9 and 4.0 grams per cubic centimeter. It has a melting point of 2050°C and a boiling point of 2980°C, and is insoluble in water.

High-Temperature Calcined Alumina Powder, with its exceptional melting point, mechanical strength, hardness, high resistivity, and excellent thermal conductivity, plays an important role in various industries, including electronic equipment, structural ceramics, refractories, wear-resistant materials, and polishing materials.

Applications and Applications of Alumina Micropowder

Our dry-pressed and isostatically pressed products, crafted through advanced formulas and rigorous processes, feature a balanced particle size distribution, excellent particle flowability, loose intergranular bonds, and superior grindability and sintering properties. These products produce dense, smooth ceramic parts with high mechanical strength and superior electrical insulation, making them ideal for specialty ceramics.

Our hot-pressed and slip-casting products stand out for their large original grain size, stable performance, and excellent moldability. They are suitable for the manufacture of various high-temperature-resistant ceramic parts (such as spark plugs), wear-resistant ceramic parts (such as mortar pump liner, impeller, and grinding media balls), as well as electronic substrates and vacuum tubes.

Alumina micropowder products are widely used in a variety of applications, including specialty ceramics, high-temperature-resistant and wear-resistant ceramic parts, and the manufacture of electronic substrates and vacuum tubes. They are also used in the manufacture of monolithic and shaped refractories, as well as furnace materials, meeting customers' stringent requirements for high temperature, thermal shock resistance, and processing properties. At the same time, these products are also suitable for the manufacture of low-cement, ultra-low-cement or cement-free castables, precision polishing and other fields, demonstrating their wide applicability.