How to prevent contamination from planetary ball milling?

- Dec 11, 2019-

During planetary ball milling with tungsten carbide jars and balls, the powder was been contaminated with carbon, how to remove the carbon from milled powder?

 

Contamination is inevitable during ball milling. And as it is not easy to confirm the real element of the contamination, so it is not easy to remove.

 

It is better to choose different milling jars and media balls where the contaminate element does not interfere with your material.