Fig. 9

The behaviour of cumulative weight loss vs sliding distance for the fabricated materials at normal loads of (a) 10 N, (b) 20 N, (c) 30 N, and (d) 40 N.

The behaviour of cumulative weight loss vs sliding distance for the fabricated materials at normal loads of (a) 10 N, (b) 20 N, (c) 30 N, and (d) 40 N.