Aluminum Oxide (Al2O3)

Use: electric ceramic, adsorbent, refractory material, catalyst, GC analysis component
Base information

Aluminum Oxide (Al2O3) Sputtering Targets (Ceramic & Crystal)

Purity--- 99%, 99.9%, 99.99%, or International standards type

Shape--- Discs, Plate,Step (Dia ¡Ü300mm,,  Thickness ¡Ý1mm)

                Rectangle, Sheet, Step (Length ¡Ü300mm, Width ¡Ü200mm, Thickness ¡Ý1mm) 

Aluminum Oxide Evaporation Materials 

Purity--- 99%, 99.9%, 99.99% or International standards type

Shape--- White Granules, Irregular pieces, Cylinder, Pellet, Taper, Custom-Made

Dimension---Custom-Made 

Melting Point--- 2040 ¡ãC   Boiling Point--- 5500 ¡ãC 
Density @ 293 K--- 3.97 g/cm3

Evaporation temperature---Vapour pressure 1 Pa at 1900,10 Pa at 2200
Coefficient of linear thermal expansion ---at 50 6.1¡Á10-6/K
Specific heat capacity--- at 27 0.78 J/gK
Hardness ---(acc. to Mohs) 9, (acc. to Knoop) 1370 Kg/mm2
Properties of thin film---
   Transmission range 2005000nm
   Refractive index at 500nm
   Substrate temperature 30 1.60
   Substrate temperature 300 1.63
Hints on evaporation---

   Evaporation with electron beam gun
   Evaporation temperature 20002200
   Deposition rate 1 nm/s
   Oxygen partial pressure 10-2Pa

Application--- Anti-reflection coatings, multilayers, interference films, protective films etc  

Aluminum Oxide Ceramic Products

Purity--- 95, 99%, or International standards type

Shape--- Crucibles ,on drawing

Dimension---Custom-Made 

Single Crystal Aluminum Oxide  ( Sapphire) 

Purity--->99.99%    Shape---Wafer, Rod, Rectange

Dimension---Wafer: Dia<3", thickness>0.3mm         Rod: Dia<30mm ,Longth<150mm

Purity--->99.99%

Shape---Wafer, Rod, Rectange

Dimension---Wafer: Dia<3", thickness>0.3mm         Rod: Dia<30mm ,Longth<150mm  

Purity---99.99% Shape---300mesh

Purity---99.999% D50--- 10-15um Bet---4-5 m2/g
App--- alumina ultra high pure micron powder are mainly used for raw of crystal, artificial lens¡¢raw materials for PDP and other high performance material.

Purity--->99.99% Shape---300mesh

Aluminum Oxide Nanometer Powder ( Al2O3 Nano-powder )¡¡

Content of zirconia (%) --- 99.9     Appearance --- White powder     

Average grain size (nm) --- 20        Specific surface area (m2/g) --- ¡Ý25

Loss of weight in drying (%) --- ¡Ü2      Loss of weight in burning (%) --- ¡Ü0.3

Crystal pattern --- Monoclinic

Appearance ---White powder

Content of zirconia (%) --- 99.8      Appearance --- White powder     

Average grain size (nm) --- 40     Specific surface area (m2/g ) --- ¡Ý20

Loss of weight in drying (%) --- ¡Ü2

Loss of weight in burning (%) ---¡Ü0.3 

Crystal pattern ---Tetragonal

Application ---Being a stable oxide with small grain size, nanozirconia has the properties of acid resistance, alkali resistance, corrosion resistance and high-temperature resistance. It can be used in functional ceramics, structural ceramics and jewel material and its properties are greatly improved as compared with the micro-zirconia. Nanometer Al2O3 powder primary used below

(1) Functional ceramics, ceramic pigment, high-purity pigment, porce lain glaze.
(2) Pyrooptical element, oxygen-sensitive element, high-capacity capacitor, optical storage, image display element, light modulated element, light shutter, stereotelevision glasses, image storage and display element.
(3) Abrasive material, insulating material, fire-retarding material, roentgenograply.
(4) High-temperature and corrosion resisting components, bearing nozzle, smelting crucible.
(5) Piezoelectric element, ion exchanger, solid dielectric, filter, temperature and pressure transmitters and transmitting elements, electrode used for magnetic-current generator, heating element.
(6) Single crystal, ruby,  sapphire, artificial jewel, catalyzer,  catalysing carrier, analyse reagent
(7) Fuel, battery.

(8)Thermal Spraying Coating material