Fig. 6
Modulus versus depth under 4000 μN applied load for different samples: (a) substrate as-received, (b) sample 1, (c) sample 4 (center region), and (d) sample 4 (transition region)
Modulus versus depth under 4000 μN applied load for different samples: (a) substrate as-received, (b) sample 1, (c) sample 4 (center region), and (d) sample 4 (transition region)
