
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.