Solid Solubility in Cu₅Gd_1−xCa_x System: Structure, Stability, and Hydrogenation

Figure 2

Backscattered SEM images of polished surface of (a) arc-melted Cu₅Gd_0.5Ca_0.5 sample, and (b) the same sample after 7 days of homogenization at 700°C in an argon-filled sealed silica tube and subsequently ice-water quenched.

(a)

(b)