Alumina Fine Powder
Description
Technical Parameters
Products Description
Alumina fine powder is different from traditional aluminum oxide powder and high-temperature calcined aluminum oxide powder. It uses low sodium calcined aluminum oxide as the core raw material and is produced through multi-stage precision grinding, grading, and purification processes. The entire production process focuses on controlling particle size distribution, sodium content, and impurity ratio.
Alumina fine powder is in the form of white loose powder, with a high melting point, stable physical and chemical properties, and no odor or toxicity. Solved the disadvantages of uneven particle size, high sodium content, and poor sintering compatibility of ordinary alumina powder in precision machining. Its fine particle size and good dispersibility enable it to be fully mixed with other raw materials in dry or wet processes, ensuring the consistency and stability of the finished product.
Chemical Composition & Physical Property
|
Features/Methods |
Unit |
HA9 FG |
HA800 FG |
HA800 SG |
HA10 SG |
||||||||
|
Typical |
Min |
Max |
Typical |
Min |
Max |
Typical |
Min |
Max |
Typical |
Min |
Max |
||
|
Na2O |
% |
0.15 |
|
0.30 |
0.12 |
|
0.15 |
0.12 |
|
0.15 |
0.40 |
|
0.5 |
|
Fe2O3 |
% |
0.04 |
|
0.06 |
0.02 |
|
0.04 |
0.02 |
|
0.04 |
0.03 |
|
0.04 |
|
Mgo |
% |
0.01 |
|
|
＜0.002 |
|
|
＜0.002 |
|
|
＜0.002 |
|
|
|
SiO2 |
% |
0.03 |
|
0.06 |
0.02 |
|
0.04 |
0.02 |
|
0.04 |
0.01 |
|
0.05 |
|
CaO |
% |
0.02 |
|
|
0.02 |
|
|
0.02 |
|
|
0.01 |
|
|
|
Surface area /BET |
M2/g |
0.8 |
|
|
0.9 |
0.70 |
1.2 |
1.0 |
0.80 |
1.50 |
13.0 |
|
|
|
D50 Cilas |
μm |
5.0 |
2.0 |
7.0 |
3.5 |
2.5 |
5.0 |
3.4 |
2.5 |
4.0 |
3.0 |
|
|
|
Particle distribution |
|
singlet |
|
|
singlet |
|
|
singlet |
|
|
singlet |
|
|
Product Features of Alumina fine powder
1. Low sodium and low impurity content
Produced using low sodium calcined alumina raw materials, the sodium oxide content is strictly controlled within a low range, effectively avoiding the influence of sodium impurities on product sintering, insulation, and high-temperature performance. The content of iron, silicon, calcium, and other harmful impurities is also minimized to ensure the purity of the material.
2. Ultra fine and uniform particle size
After grinding and multi-stage grading, the particle size distribution is concentrated and uniform, without large particles or clumps.
3. High melting point and high mechanical strength
It has a high melting point and excellent mechanical strength and hardness. Products made from this powder have strong pressure resistance, wear resistance, and impact resistance, and can maintain stable performance in harsh working environments.
4. High electrical insulation and thermal conductivity
It has high volume resistivity and excellent thermal conductivity, which can quickly conduct heat while ensuring electrical safety.
application
1. Electronic devices and components
As a raw material for electronic ceramics, insulating substrates, and circuit components. Its high insulation and low sodium characteristics ensure the safety and stability of electronic products, adapting to the development trend of miniaturization and high precision of electronic devices.
2. Manufacturing of structural ceramics
Applied to the production of ceramic structural components, mechanical seals, and ceramic bearings. The high mechanical strength and wear resistance of the powder improve the service life of structural ceramic products.
3. Advanced refractory materials
Add to refractory bricks, crucibles, and high-temperature furnace linings. It improves the high temperature resistance and corrosion resistance of refractory products, making it suitable for working environments with extreme high temperatures.
4. Wear resistant materials and parts
Used as an additive for wear-resistant coatings, ceramic linings, and wear-resistant parts. It improves the surface hardness and wear resistance of the product, reducing equipment wear and maintenance costs.
FAQ
1. Can you provide free samples?
Yes, we can provide it, please send us specific needs, we will choose the right product sample
2. How long is the delivery period
Depending on the product, the delivery period is different. The customized products are generally about one month, and the conventional products are about 7-10 days
3. The MOQ is?
MOQ is usually 1 ton, special products can be coordinated with each other.
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