Milling time | Number of steel balls | Diameter of steel balls, mm | Mass ratio of powder/balls | The total weight of the balls, g |
15 min | 8 | 1 | 1:6 | 65.71 |
30 min | 8 | 1 | 1:6 | 65.71 |
1 h | 17 | 0.5 | 1:5 | 58.05 |
3 h | 17 | 0.5 | 1:5 | 58.05 |
5 h | 36 | 0.3 | 1:3 | 34.52 |
6 h | 36 | 0.3 | 1:3 | 34.52 |
7 h | 36 | 0.3 | 1:3 | 34.52 |
8 h and 25 min | (2 + 4 + 3 + 7) | 1 + 0.8 + 0.5 + 0.3 | 1:4 | 41.90 |