Hot Structure Flight Data of a Faceted Atmospheric Reentry Thermal Protection System

Table 1

Material properties of C/C, C/C-SiC, and titanium Ti6Al4V. C/C-SiC is given in its orthotropic properties which are comparably constant over temperature. Titanium properties are given with respect to room temperature (RT) and high temperature (HT) of approximately 800 K.

	(kg/m^3)	ϵ; —	λ‖; (W/mK)	(W/mK)	(J/kg K)	‖		(MPa)
C/C	1400	0.85	14	2	1650
C/C-SiC	1900	0.85	17	8	1350	1.5	5	160 (bending)
Ti6Al4V	4430		7.1	7.1	560	2.6 (RT)		900 (RT)
						3 (HT)		550 (HT)