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. 2019 Mar 6;12(5):768. doi: 10.3390/ma12050768

Figure 5.

Figure 5

Microscopic photographs of chips (a) angle of curl—f = 0.077 mm/rev, ap = 0.25 mm and (b) external surface of the chip—f = 0.211 mm/rev, ap = 1.0 mm.