“…The first two specimens (i.e., MZ1-S1450G and MZ2-S1400) were tested under monotonic loading history at room temperature and 600°C, respectively (Figure 3). The chosen testing temperature was the highest possible with the present furnace and led to the understanding on how to treat the acquired images [32] before preparing the setup and performing such experiments at higher temperatures for which further challenges will arise such as black body radiations [33]. All the other experiments (i.e., MZ3-S1400G, MZ4-S1450, and MZ5-S1450G) had five cycles and were performed at 600°C.…”