Abstract
Over the last years, in the context of the electric aircraft technology trend, the development of electric brakes in replacing hydraulic systems has gained great interest due to its several potential benefits. Currently, materials for brakes for aircrafts range from the low-cost sintered friction pad/liner material vs sintered rotor disc material to the high cost carbon fiber material vs carbon fiber material.
Highlights
The rapid development of additive manufacturing technologies has improved the choice of materials in various industrial sectors, relating to friction materials for brakes application in the aeronautical sector
The discs are typically provided with slots for better heat dissipation at high temperature
Different coatings for aircraft brake application produced with two thermal spray technologies were analysed
Summary
The rapid development of additive manufacturing technologies has improved the choice of materials in various industrial sectors, relating to friction materials for brakes application in the aeronautical sector. Brakes are responsible for conversion of excess kinetic energy into thermal energy by increasing the wheel rolling friction, reducing the vehicle speed. Braking systems employ this principle for slowing down or stopping the vehicles. Under the action of hydraulic pressure, these series of discs get compressed, forcing the wheel to slow down due to friction. The brake is activated by the hydraulic system pressure, which compresses the heat stack In this way, the rotors and the stators are squeezed together by hydraulic pistons and the brake produces torque by virtue of friction forces generated at the rubbing interface between the rotors and the stators
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