Aluminium oxide

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Product information

Aluminium oxide (Al2O3) is a kind of high hardness compound whose melting point is 2054℃ and boiling point is 2980℃ and it can be ionized at high temperature ionic crystal,  used in the manufacture of refractory materials.

 

Product characteristics:

Purity: Al2O3≥99.99%

Crystal: r-Al2O3 or a-Al2O3

Median particle size: d50(μm) 0.5-4.0

Loose density: g/cm3 0.3 ~ 0.6

Ratio surface: m2/g 5 ~ 12

Fe 10PPM

Na≤20PPM 

Ca ≤o 20PPM

Si ≤20PPM 

Cr ≤ 5PPM 

Mg ≤ 10PPM 

K  ≤ 50PPM 

Cu ≤ 5PPM 

Ni ≤ 10PPM

 

High purity active aluminum oxide powder uses :

♦ Luminescent material: It can be used as the main raw material of rare earth three primary color phosphors, long afterglow phosphor, PDP phosphor and LED phosphor;

♦ Transparent ceramics: It can be used asfluorescent tubes for high pressure sodium lamps, electrically programmable read-only memory Windows;

♦ Single crystal: It can be used for manufacturing ruby, sapphire, yttrium aluminum garnet;

♦ High strength and high alumina ceramics: It can be used for manufacturing integrated circuit substrates, cutting tools, crucible of high purity;

♦ Abrasives: Abrasives are used in the manufacture of glass, metals, semiconductors and plastics;

♦ Others: It can be used as active coating, adsorbent, catalyst and catalyst carrier, vacuum coating, special glass raw materials, composite materials, resin filler, bioceramics, etc.