Dynamic Response of Graphitic Targets with Tantalum Cores Impacted by Pulsed 440-GeV Proton Beams

Table 2

Overview of the material properties of tantalum and polycrystalline graphite SGL R6650 used in the coupled transient thermal/transient structural ANSYS simulation.

Material property		Tantalum	Graphite
Density (g·cm^−3)	ρ	16.6	1.83
Specific heat capacity (J·g^−1·K^−1)	cp	0.151	0.7
Young’s modulus (GPa)	E	187	12.5
Coefficient of thermal expansion (K^−1)	α	6.5 × 10^−6	4.2 × 10^−6
Poisson’s ratio		0.35	0.18
Thermal conductivity (W·m^−1·K^−1)	k	54	95