Table 1 The standard deviation of stabilized CoF under different applied normal loads.

From: Time- & Load-Dependence of Triboelectric Effect

Load/N

Standard Deviation of COF

Al-Al Friction Pair

Al-Cu Friction Pair

5

0.219

0.112

15

0.088

0.074

30

0.077

0.074

40

0.068

0.073

50

0.053

0.015

60

0.054

0.020