الوصف

*-Size Powder Al2O3 *9% min *8.5% min Na2O 0.4% max 0.4 % SiO2 0.2% max 0.*5% max Fe2O3 0.*5% max 0.5% max Hardness(Mohs) 9.0 min True density 3.*5 g/cc min Principal crystalline Phase &#**5;-Al2O3 index White Alumina White Alumina with a little Sodium Al2O3 >*9% >*9.3% SiO2 <0.*5% <0.*5% Fe2O3 <0.1% <0.1% Na2O <0.3% <0.*5% Volume density &#***5;3.*0g/cm3 &#***5;3.*5g/cm3 Real density &#**5;-Al2O3 Main crystallographic direction **5MM **3MM **1MM ***0MM Coarseness *6# *0# *2# *4# *6# *0# *0# *0# **0# Fines **0F **0F **0F **5F Physical Properties Chemical Composition(%) Particle Size Fine Powder Principal crystal phase;&#**5;-Al2O3 Al2O3 &#***5;*9 &#***5;*8.5 Cystal system: Hexzagon Na2O &#***4;0.4 &#***4;0.4 Colour and lustre: White SiO2 &#***4;0.2 &#***4;0.*5 True densyty(g/cm3):&#***5;3.*5 Fe2O3 &#***4;0.*5 &#***4;0.5 Packing density(g/cm3):1.***1.*5 Mohs hardness:9 Linear expansion Coefficent (1/°C):8.3×***4 Grain size(mm) 3~5, 1~3, 0~1 Fine Powder(mesh) *0,**0,**0,**0 etc Micro Powder(um) 3~5,5~*0 Typical Min Max Al2O3 *8.*1 *8.*0 - Fe2O3 0.*0 - 0.*0 Na2O 0.*1 - 0.*5 SiO2 0.*1 - 0.*0 TiO2 1.*5 - 1.*0 Magnetism 0.*3 - 0.*5 Water 0.*5 - 0.*0 xxxxx/cm3 3.*5 3.*0 - Mesh sizes *1mm,**3mm.**5mm,**0mesh(**0um),3×6mesh,6×4mesh,*4×*0mesh,4×*0mesh,*4mesh,**4mesh,**0mesh,***0mesh,***0mesh,***5mesh. Chemical composition(%) Grain Size Range Al2O3 Na2O Fe2O3 Min Typical Max Typical Max Typical *2#**0# *8.*0 *9.*0 0.*0 0.*5 0.*5 0.*4 **0#***0# *8.*0 *9.*0 0.*0 0.*8 0.*5 0.*4 **0#*0 *8.*0 *9.*0 0.*0 0.*5 0.*5 0.*4 **0#*0 *7.*0 *9.*0 0.*0 0.*5 0.*5 0.*4 **0 **0 *8.*0 *9.*0 0.*0 0.*6 0.*6 0.*5