80 ml zirconium oxide (ZrO2) bowl with 1 mm ZrO2 balls.
Feed quantity:
10 g
Feed Size:
10 µm
Additive:
+ 13ml water
Grinding time:
17 min*1
Final fineness:
d50 <500 nm*2
Comments:
*1:
The sample uses to react in combination with water. After 5minutes of grinding, the pressure inside of the bowl has been very high. So the valve uses to blow off the over pressure slowly.
After cooling down, the pressure inside of the bowl will remain very high. That happens also after a grinding time of 4 minutes and even after 3minutes (pressure seems to increase after the grinding).
Therefore we decide to abort the grinding process.
Even inside of the pastic bottle the reaktion did not stop.
*2: See the particle size analysis with our Laser-Partikel-Sizer ANALYSETTE 22 -NanoTec on separate page (Meas.-nr. 7040).