The brake disc is an indispensable component of an automobile especially in this trending era of electric mobility, where gasoline engines are superseded by electric vehicles in which prominent criteria is to lower down the weight to enhance the performance of the vehicle. Aluminum Metal matrix composites (MMC) play an important role because of researchers as these are not only used in automotive industries but aircraft and locomotives also. In most vehicles, these brakes are made up of Cast Iron which has well anti-wear properties and cheap too. But in certain other cases such as high-performance vehicles, these brake discs are not up to their standards of high performance because the cast iron brake discs are heavy and so reduces the vehicle’s performance to a particular extent. This paper reviews on fundamental function of Disc brake and the crucial challenges found in this review are, the problem of evolution of hazardous wear particles in an atmosphere, thermoelectric friction problem during braking, friction-induced vibration which causes squeal, the behavior of abrasive particles, and dynamic stability analysis, etc. an alternative to cease these problems possibly is to adopt novel material

The aim of this work is to investigate the influence of the addition of silicon carbide and molybdenum disulfide on the microstructure and the tensile strength of the Al-Flyash hybrid composites prepared using the stir casting technique. The composite with aluminum 6061 alloy as the matrix and flyash as the reinforcement, with different weight fractions, is investigated to study its microstructure and the tensile strength. The same has been compared with the hybrid composites with Aluminum-Flyash/SiC and Aluminum-Flyash/MoS2 for different weight fractions of the reinforcements. The tensile tests were conducted as per ASTM standard testing procedures at room temperature. From the results it is identified that tensile strength of the Al6061-Flyash composite is lesser than the Al6061-Flyash/SiC and Al6061-Flyash/MoS2 hybrid composites. It is also observed that increment in the composition of the SiC and MoS2 causes the increment in the tensile strength of the hybrid composite. This increment in the tensile strength is due to good interface bonding and uniform distribution of the reinforcements in the composite.