Product Main

Specifications

    Characteristic
Excellent arc resistance; Low coefficient of thermal expansion; Good electrical insulation; Great antioxidation and mechanical property ability
 
    Application
Filler of quartz crucible;
Filler of FBT and EMC;
Raw materials of cosmetics
Nano spherical fused silica used in quartz crucible
Spherical fused silica powder used in quartz ceramics. It owns excellent arc resistance; low coefficient of thermal expansion and good electrical and so on characteristics. These characteristics are good for solving the quartz ceramics’ brittleness problem. After adding spherical silica powder into quartz ceramics, it would make quartz crucible to be denser. Meanwhile, it greatly increased strength of crucible.Nano spherical fused silica own good physical properties, excellent chemical stability and unique optical properties which made it to be the most important materials for the quartz ceramics crucibles.
 
l      Technique Data
Amorphous Silica Powder
Appearance
Fine white powder
X-ray
Amorphous
BET surface area
20m2/g
Particle shape
Spherical
Particle size
0.02 – 0.55 microns
Bulk density:
34.1 kg/cu kg
Refractive index
1.46
Behavior in water
Hydrophilic
Specific gravity:
2.1
 
 
CHEMISTRY
SiO2
99.9 %
Na
100 – 300 ppm
Al
10 – 30 ppm
Fe
<10 ppm
Mg
<10 ppm