670315.fig.007a
(a)
670315.fig.007b
(b)
670315.fig.007c
(c)
670315.fig.007d
(d)
670315.fig.007e
(e)
Figure 7: Melting process in evolved DS furnace for power distribution ratio of 5 : 5: (a) 480 min; (b) 540 min; (c) 600 min; (d) 660 min; (e) 720 min.