5N 99.999% high purity alumina polycrystalline
1) Alumina (Al2O3) is a white fine powder with purity of more than 99.99% to become high-purity alumina
2) Features: porous, high dispersion, insulation, heat resistance
3) Shape: crystal, spherical, powder, cake
4) Advantages: excellent hardness, high brightness, electrical isolation, super wear resistance and high corrosion resistance
Our company 5N 99.999% high purity alumina produced by alkoxide hydrolysis,through strict control of raw materials and production process, the high purity alumina cake has the advantages of high purity and high density
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5N 99.999% high purity alumina |
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Name |
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5N 99.999% high purity alumina cake |
5N 99.999% high purity alumina polycrystalline |
5N 99.999% high purity alumina ball |
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Type |
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CX007A |
CX007B |
CX700C |
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Al2O3 Content |
% |
≥99.999% |
≥99.999 |
≥99.999% |
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Phase state |
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α-Al2O3 |
α-Al2O3 |
α-Al2O3 |
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Appearance |
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Pallet |
White columnar |
Granule |
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Na |
ppm |
≤2 |
≤2 |
≤2 |
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Fe |
ppm |
≤2 |
≤2 |
≤2 |
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Ca |
ppm |
≤1 |
≤1 |
≤1 |
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Si |
ppm |
≤2 |
≤2 |
≤2 |
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Cu |
ppm |
≤1 |
≤1 |
≤1 |
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Mg |
ppm |
≤1 |
≤1 |
≤1 |
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Ti |
ppm |
≤1 |
≤1 |
≤1 |
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Cr |
ppm |
≤1 |
≤1 |
≤1 |
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Size |
mm |
48±2mm |
50-100,100-200,200-280mm(according to customer needed ) |
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Apparent Density |
g/cm3 |
/ |
/ |
1.0～2.0 |
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Specific Surface Area |
m2/g |
/ |
/ |
/ |
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Sintered Density |
g/cm3 |
≥3.2 |
≥3.5 |
3.0～3.6 |
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Main application |
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sapphire crystal |
led substrate |
smart phone watch touch screen |
5N 99.999% high purity alumina was widely used in Sapphire single crystal, laser crystal (YAG) and artificial gem, color gem, white gem, ruby,led substrate, missile fairing, mobile phone protection cover plate, home key, camera, smartphone and smart watch touch screen and so on
We also have other type 4N and 5N high purity alumina cake,contact with us for OEM
