Micro/Nanostructure and Tribological Characteristics of Pressureless Sintered Carbon Nanotubes Reinforced Aluminium Matrix Composites

Figure 2

SEM micrograph of polished surface of (a) pure Al, (b) Al + 0.5 wt% CNT, (c) Al + 1 wt% CNT, and (d) Al + 2.0 wt% CNT.

(a)

(b)

(c)

(d)