Research Article
On the Tapping Mode Measurement for Young’s Modulus of Nanocrystalline Metal Coatings
Table 1
Values for
, displacement (
), Poisson’s ratio (
), and elastic modulus
.
| | Sample | (Hz·nm−1/2) | (nm) | (GPa) | | (GPa) | Cubic materials (GPa) | | (111) | (110) | (100) |
| | Polycarbonate pC | | 5.08 | 4 | 0.37 | 3.5 | — | — | — | | Fused silica SiO2 | | 4.17 | 70 | 0.17 | 72 | — | — | — | | Fused quartz SiO2 | | 3.25 | 70 | 0.17 | 72 | — | — | — | | Hydroxyapatite HA | | 1.46 | 86 | 0.27 | 85 | — | — | — | | Silicon Si(100) | | 1.18 | 127 | 0.27 | 130 | 188 | 169 | 130 | | Vanadium V(110) | | 1.63 | 130 | 0.37 | 125 | 119 | 125 | 147 | | Silicon Si(111) | | 2.74 | 176 | 0.27 | 188 | 188 | 169 | 130 | | Tantalum Ta(110) | | 1.62 | 187 | 0.34 | 192 | 216 | 192 | 144 | | Nickel Ni(111) | | 1.71 | 269 | 0.31 | 305 | 305 | 227 | 129 | | Fused sapphire Al2O3 | | 0.98 | 367 | 0.27 | 470 | — | — | — | | Sapphire Al2O3(00.2) | | 0.78 | 382 | 0.27 | 496 | — | — | — |
|
|
