Products

VestaSi designs and manufactures Silicon [Si: SicoMill®] and Silicon Nitride [Si3N4] powders

SICOMILL®

SicoMill® is a finely ground silicon powder, especially developed for the ceramic industry. Vesta offers SicoMill® in three different purity levels and four different particle sizes, in addition to powder grades customized to our clients’ specifications. Our consistent quality of raw materials allows our customers to produce consistently high quality products. Applications range from ceramic bearings and cutting tools to pyrotechnical mixes.

Chemical properties

  Grade 2   Grade 4   Grade 4N
  Spec. Typ.   Spec. Typ.   Spec. Typ.
* Not measured
** Oxygen content depends on the particle size and distribution
Si Content [%] >98 98.60   >98.9 99.70   99.99 99.99
Impurities [%]:
Fe <0.52 0.40   <0.11 0.09   <0.006 0.004
Al <0.20 0.15   <0.11 0.10   <0.005 0.002
Ca <0.08 0.05   <0.02 0.01   <0.002 0.005
C <0.10 0.06   <0.15 0.10   * *
O2 <1.0 **   <1.0 **   <0.100 0.060


Physical properties

  Distribution
[µm]
  Cut-Off
[µm]
  Bulk Density
[g/cm3]
  Area
[BET]
Particle size D10 D50 D90   D Typ.   Spec. Typ.   [m2/g]
B 10 40 60   98% <1;100   1.0 1.4   0.4
C 3 11 25   98% <1;30   0.7 1.1   1.2
D 2 7 13   99.5% <1;30   0.6 0.9   2.1
E 1 4 8   99.9% <1;20   0.5 0.8   3.5