Fused silica powder
Fused silica Introduction
Fused silica is made of high purity crystal silica by electrically fusing (fusing temperature 1800-2000℃) to amorphous Silicon dioxide , then it was classed to different grades by manual and then specially engineered to granular and powder form. Because fused silica has a very low thermal conductivity and excellent thermal shock resistance, it is used in lots of fields of investment casting,refractory,ceramic,epoxy modling compound,fusion bounded epoxy.
Fused Silica Properties
|
|
|
Investment Casting Grade |
|
2.1 |
SiO2 |
>99.90% |
|
2.2 |
Al2O3 |
<200ppm |
|
The finer the power,the higher the Al2O3,as powder is produced by ball mill with Alumina ball. |
||
|
2.3 |
Fe2O3 |
<50ppm |
|
2.4 |
TiO2 |
<20ppm |
|
2.5 |
MgO |
<40ppm |
|
2.6 |
CaO |
<40ppm |
|
2.7 |
Alkalies |
<100ppm |
Fused Silica Application
Refractory, ceramic, investment casting, foundry, epoxy molding compound, fusion bounding epoxy powder coating.
