Figure 8
The extremely anisotropic directional dependence E(r)/Emax of Young's modulus for single-crystalline graphite. Emax = E(r towards the equator) = 1092 GPa, Emin/Emax = 0.016, Emin = E(r||ZB). A unit sphere would appear for an isotropic sample. The ZB axis points upwards and the XB axis to the right.  [article HTML]

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