Processing and Wear Behaviour of 3D Printed PLA Reinforced with Biogenic Carbon

Table 3

Results from Raman spectroscopy, 532 nm laser wave length.

sample	D-peak position	G-peak position	Intensity ratio /	/nm
biocarbon 1	1345.9	1595.6	0.91	2.331
biocarbon 2	1340.0	1596.1	0.89	2.363
biocarbon 3	1338.0	1595.3	0.91	2.375
biocarbon 4	1340.0	1599.0	0.88	2.375
mean value	1341.0	1596.5	0.90	2.350
standard deviation	3.4	1.7	0.02	0.02

: in-plane crystallite size after pyrolysis at 800°C.