Question

Question 5: Asperities are basically?​

Answer 1

Answer:

In materials science, asperity, defined as "unevenness of surface, roughness, ruggedness" (from the Latin asper—"rough"[1]), has implications (for example) in physics and seismology. Smooth surfaces, even those polished to a mirror finish, are not truly smooth on a microscopic scale. They are rough, with sharp, rough or rugged projections, termed "asperities". Surface asperities exist across multiple scales, often in a self affine or fractal geometry.[2] The fractal dimension of these structures has been correlated with the contact mechanics exhibited at an interface in terms of friction and contact stiffness.

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