Activated Alumina Powder

Activated Alumina Powder

Alumina Powder(Aluminum Oxide Powder) is a white powder of Al2O3, which is mainly used in the production of aluminum metal, refractory materials, ceramics and catalysts, etc. It has a high melting point and chemical stability.

  Description

As an important high-tech material, high-purity activated alumina powder has been widely used in high-tech fields such as insulating materials, electronic products, wear-resistant and corrosion-resistant materials, and aerospace due to its high purity, ultra-fine particle size, and excellent physical and chemical properties. High-purity alumina generally refers to ultra-fine powder materials with a purity greater than 99.99% and uniform particle size. It has excellent properties such as high hardness, high strength, wear resistance, corrosion resistance, high temperature resistance, oxidation resistance, good insulation, small thermal expansion coefficient, good thermal shock resistance, and low dielectric loss.

  Technical Data:

 

 

ltem

RSAA-101 RSAA-102 RSAA-103 RSAA-202
  Warranted Typical Warranted Typical Warranted Typical Warranted Typical
Al₂O₃,% ≥99.50 99.52 ≥99.50 99.6 ≥99.50 99.53 ≥99.50 99.66
K₂O+Na₂O,% ≤0.20 0.13 ≤0.20 0.14 ≤0.25 0.15 ≤0.15 0.10
Fe₂O₃,% ≤0.05 0.02 ≤0.05 0.02 ≤0.08 0.03 ≤0.05 0.02
SiO₂,% ≤0.15 0.08 ≤0.15 0.08 ≤0.15 0.09 ≤0.15 0.07
D50,μm ≤2.0 1.7 2.0-3.0 2.4 3.0-5.0 3.5 2.0-3.0 2.5
Particle

 

Distribution

Characterization

 

 

single-peak

 

 

single-peak

 

 

single-peak

 

 

double-peak

α-Al₂O₃     Phase,%  

 

≥93

 

 

95

 

 

≥93

 

 

95

 

 

≥93

 

 

96

 

 

≥93

 

 

96

True density g/cm³  

 

≥3.93

 

 

3.96

 

 

≥3.93

 

 

3.96

 

 

≥3.93

 

 

3.96

 

 

≥3.94

 

 

3.97

  Application:

Activated alumina powder is particularly suitable for shaped products and refractory castables, plastics, repair materials, gunning materials, coating materials and other amorphous refractory materials.

1. Ceramic industry: It is one of the main raw materials for ceramic products and is used to produce high-end ceramic products and refractory materials.

2. Metallurgical industry: It is widely used in aluminum smelting, magnesium smelting and other industries, which can improve the quality and output of products.

3. Energy industry: It has important applications in energy fields such as fuel cells and solar cells, which can improve energy conversion efficiency and stability.

4. Other fields: It is also used in glass, coatings, medicine and other fields.

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