Figure 1

SEM images of the (a) 1-CuZn with 5% Zn, (b) 2-CuZn with 15% Zn, (c) 3-CuZn with 30% Zn, and (d) 4-CuZn with 50% Zn samples after annealing in air at 500 °C for 1 h. (e) Grazing angle XRD patterns for all 4 samples after annealing at 500 °C for 1 h with 10 °C/min heating rate.