Table 3. Principal Axes of Strain for the Crystal Structures of Lev and Eti.
| principal
axis of strain |
||||||
|---|---|---|---|---|---|---|
| X1 |
X2 |
X3 |
||||
| direction | K (TPa–1) | direction | K (TPa–1) | direction | K (TPa–1) | |
| Lev | [−0.99 0 –0.17] | 11(3) | [0 1 0] | 9.8(8) | [−0.11 0 –0.99] | 5.4(5) |
| Eti | [− 0.44 0 0.90] | 18(1) | [0 –1 0] | 11.7(5) | [0.91 0 0.42] | 2.3(1) |