Types of aluminum oxide powder?

The types of aluminum oxide powder can be classified based on their purity, particle size, and morphology.

1. High purity alumina powder: This type of alumina powder has high purity and is commonly used in analytical reagents, adsorbents, etc. Its chemical formula is Al2O3, melting point is 2050 ℃, density is between 3.5-3.9g/cm3, and its appearance is a white amorphous powder.

2. Nano alumina powder: The particle size of nano alumina powder is below 1 micron, and it has excellent dispersibility and thermal conductivity. It can be used to prepare various thermal interface materials, thermal conductive adhesives, potting adhesives, etc. The chemical formula of nano alumina powder is Al2O3, with a melting point of 2054 ℃, a density of 3.9g/cm3, and a white amorphous powder appearance.

3. Ordinary alumina powder: This type of alumina powder has a lower purity, but is widely used. It can be used to manufacture refractory materials, shaped products, refractory castables, etc. The chemical formula of ordinary alumina powder is Al2O3, with a melting point of 2054 ℃, a density of 3.5g/cm3, and a white amorphous powder appearance.

4. Spherical alumina powder: This alumina powder has high density and low surface area, good flowability, and is suitable for fields such as catalysts, electronic materials, and ceramics. The chemical formula of spherical alumina powder is Al2O3, with a melting point of 2054 ℃, a density of 3.9g/cm3, and a white amorphous powder appearance.

5. Flake alumina powder: Flake alumina powder has a large specific surface area and high adsorption performance, and is commonly used as an adsorbent material and catalyst. Its chemical formula is Al2O3, melting point is 2054 ℃, density is 3.9g/cm3, and appearance is white amorphous powder.

6. Fibrous alumina powder: Fibrous alumina powder has high flexibility and high specific surface area, and is suitable for enhancing the mechanical and heat resistance properties of materials such as plastics, rubber, and ceramics. The chemical formula of fibrous alumina powder is Al2O3, with a melting point of 2054 ℃, a density of 3.9g/cm3, and a white amorphous powder appearance.