Friction liner

摘要

Grain-refined and amorphous metallic material based friction liners for braking devices as used, e.g., in motor vehicles such as cars, trucks, motorcycles, as well as bicycles and other applications requiring, at least at times, decelerating rotating parts are disclosed. Friction liners can have isotropic or anisotropic properties and the friction surfaces can optionally be rendered hydrophobic.

主权项

1. A stationary or rotating friction liner for a brake system having an exposed surface, at least part of said exposed surface defining a friction surface contacting at least one other friction liner surface when a braking force is applied, said stationary or rotating friction liner comprising a metallic material having a microstructure which is fine-grained with an average grain size between 2 and 5,000 nm and/or an amorphous microstructure, a minimum thermal conductivity of 70 W/mK, a minimum heat capacity of 1.75 J/(ml·K), a minimum hardness of 200 VHN and a linear coefficient of thermal expansion in the range of between 0 and 50 10−6 K−1,
wherein said friction liner is a component or part of a braking system for a transportation system selected from the group consisting of cars, trucks, motorcycles, all terrain vehicles (ATV), snowmobiles and bicycles, wherein said braking system is selected from the group consisting of a brake rotor, a brake disk, a brake pad and a brake drum, and wherein said metallic material is configured to achieve a deceleration rate from a maximum speed between 25 km/hr and 100 km/hr of at least 5 m/sec2.