Table 1 Indenter tip, contact plane, Young's modulus (E), and hardness (H) of GaN single crystal
From: Nanoscale anisotropic plastic deformation in single crystal GaN
Indenter tip | Plane | E (GPa) | H (GPa) |
|---|---|---|---|
Berkovich tip | (0001) | 333.61 ± 2.70 | 19.04 ± 0.23 |
(11-20) | 330.56 ± 2.72 | 15.31 ± 0.20 | |
(10-10) | 329.74 ± 3.26 | 15.24 ± 0.21 | |
Conical tip | (0001) | 317.34 ± 4.12 | 20.16 ± 0.48 |
(11-20) | 308.26 ± 3.82 | 15.87 ± 0.41 | |
(10-10) | 306.96 ± 3.98 | 16.23 ± 0.44 |