Figure 3

SEM images (50 ×) of (a) Cu–13.5Al–4Ni, (b) Cu–13.5Al–4Ni–0.2CNT, (c) Cu–13.5Al–4Ni–0.4CNT, (d) Cu–13.5Al–4Ni–0.6CNT, and (e) Cu–13.5Al–4Ni–0.8CNT.

SEM images (50 ×) of (a) Cu–13.5Al–4Ni, (b) Cu–13.5Al–4Ni–0.2CNT, (c) Cu–13.5Al–4Ni–0.4CNT, (d) Cu–13.5Al–4Ni–0.6CNT, and (e) Cu–13.5Al–4Ni–0.8CNT.