![Figure 1](https://cjur.ca/wp-content/uploads/2021/10/ArsenauPhilippF1.png)
Fig. 1 Close-up of aluminium slab with ratchet-like topography. Ratchet angle is defined for an individual ratchet as the angle of the hypotenuse relative to the horizontal, which is constant for the entire slab.
Fig. 1 Close-up of aluminium slab with ratchet-like topography. Ratchet angle is defined for an individual ratchet as the angle of the hypotenuse relative to the horizontal, which is constant for the entire slab.