Abstract
Ni anisotropic microgroove structures were prepared by lithographic processes and electroforming to investigate the effect of microstructures on friction forces. For Ni microgroove structures, the friction forces varied significantly depending on the indenter sliding direction to the anisotropic microstructures. The friction forces of parallel sliding directions on microgroove structures were unstable and considerably larger than those of the perpendicular directions owing to the difference in the structure continuousness. These results suggest that anisotropic microstructures affect friction forces and can deploy fail-safe functions when a large load is accidentally applied.
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