Core/Shell Structure of TiO₂-Coated MWCNTs for Thermal Protection for High-Temperature Processing of Metal Matrix Composites

Table 2

Carbon content in TiO₂-coated MWCNT composites.

Sample	Initial MWCNT %wt.^1	Calcination temp. (°C)	TGA %wt. loss^2 (%wt^1/%wt^2)
Cycle I	28.57	500	25.47 (1.12)
		750	21.88 (1.30)
		1000	17.22 (1.65)
Cycle II	8.23	500	8.21 (1.00)
		750	7.11 (1.15)
		1000	3.58 (2.29)
Cycle III	2.32	500	0.61 (3.80)
		750	0.40 (5.80)
		1000	0.31 (7.48)

Notes. The carbon contents presented here correspond to ¹the values before sample fabrication (percent of MWCNTs, related to the total weight of the MWCNT-coated TiO₂ nanocomposite) and ²those determined by TGA analysis, respectively.