Patent · US Active

Nanostructured friction enhancement using fabricated microstructure

US7799423B2 · kind B2 · utility

3Cited by

17References

15Claims

0Family size

Assignee

The Regents of the University of California · US

Inventors

Carmel Majidi · Berkeley, US
Richard Groff · Berkeley, US
Ronald S. Fearing · Sacramento, US

Key dates

Filing date	Nov 16, 2005
Grant date	Sep 21, 2010
Priority date	—
Expiry date	Jan 13, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2913
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Described herein are fabricated microstructures to adhere in shear to a contact surface. A fabricated microstructure comprises a substrate and a plurality of nano-fibers attached to the substrate. The nano-fibers have an elasticity modulus E, an interfacial energy per unit length of contact w, a length L, a radius R, and are oriented at an angle θo relative to the substrate. The length L of the nano-fibers is greater than 0.627θoR2(E/w)1/2 with θo in radians. Also described herein is a method of forming a fabricated microstructure to adhere in shear to a contact surface and a method of adhering in shear a fabricated microstructure to a contact surface.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.