Interactive calculator showing how fine particle mass fraction and size decelerate the breakage rate of coarse particles via the cushioning effectiveness factor

0.25
0.90
3.00

Effectiveness factor F_c

0.76

coarse rate depressed to 76% of theoretical

F_c = 1 / (1 + q₂·(|1/x_f − 1/x_c|^α · m_f)²), silica fit: α=0.620, q₂=7.000 mm^1.24

Source: "On the origin of non-linear breakage kinetics in dry milling.pdf" — Topic 8, Part 4