From: Thermo-optical simulation and experiment for the assessment of single, hollow, and large aperture retroreflector for lunar laser ranging
Material
Density (kg/m3)
Young’s modulus (GPa)
Poisson’s ratio
Si
2329
185 (111)
170 (110)
130 (100)
0.28 (100)
0.26 (111)
CCZ-EX®
2550
91
0.26