Issue34

Q. Like et alii, Frattura ed Integrità Strutturale, 34 (2015) 543-553; DOI: 10.3221/IGF-ESIS.34.60 551 Figure 11 : Relationship between failure around mineral boundary and irradiation time (0.2 mm). Figure 12 : Relationship between failure around mineral boundary and irradiation time (0.4 mm). Figure 13 : Relationship between failure around mineral boundary and irradiation time (0.8 mm). Figure 14 : Relationship between failure around mineral boundary and irradiation time (1.0 mm). Figure 15 : Relationship between irradiation time and grain size when the failure rate reaches 95%. Figure 16 : Relationship between energy consumption and grain size when the failure rate reaches 95%. Fig. 15 illustrates the relationship between microwave irradiation time and grain size when the mineral failure rate reaches 95%. Fig. 16 shows the relationship between the corresponding energy consumption and grain size. As shown in the figures, as the mineral crystal becomes larger, irradiation time becomes shorter when the mineral boundary failure rate reaches 95%, and energy consumption is lower. When irradiation time decreases from 650 ms to 22 ms, energy consumption decreases from 3250 J to 85 J. Moreover, when the crystal size exceeds 0.6 mm, irradiation time and energy consumption substantially remain unchanged. The results of this method are consistent with those of other mineral