Tribological and mechanical behavior of boric acid and borax containing brake pad
Sugözü, İlker | Sugözü, Banu
Vehicle brake pads are formed as a result of combining different materials. In this study, boric acid and borax were used in vehicle brake pad content. Boric acid and borax were added to the pad content at 1%, 3%, 5% and 7%, and braking performance was compared. The braking performance of the produced pads was determined using a pin-on-disc friction test device. The specific wear rate, hardness and density values of the pad samples were determined. The brake pad containing 7% boric acid and borax achieved a braking performance close to the highest value among the values specified in the standards.
Impact of Boric acid and Colemanit addition on tribological behavior and braking performances of brake lining
Sugözü, İlker | Sugözü, Banu
Brake lining is formed as a result of combining different materials. The materials used in the brake lining are an important factor in the brake lining performance. In this study, boric acid and colemanite, one of the boron products with high temperature resistance, were used as brake lining materials. 1%, 3%, 5% and 7% boric acid and colemanite were added to the brake lining content. The tribological properties of the brake linings were examined with a pin-on disc tester. The friction performance increased as the boric acid and colemanite ratio increased in the brake lining content. As the boric acid and colemanite ratio increased, the hardness and density of the brake lining increased, and the wear resistance decreased.
Effects of Boron minerals on the mechanical and tribological properties of brake friction materials
Sugözü, Banu | Sugözü, İlker
Brake liningsrise to high temperatures as a result of friction. The high temperature caused by friction causes brake weakening and extends the stopping distance of the vehicle as an undesirable situation. In this study, high temperature resistant boron minerals Colemanite, Ulexite, Borax and Boric Acid were used in brake lining content. Colemanite, Ulexite, Borax and Boric Acid have been added to the brake lining content at rates of 1%, 3%, 5% and 7% by mass. Friction and wear performances of the produced brake liningswere determined with a pin-on-disc tester. As the Bo mineral content increased, the friction performance of the brake lining increased positively. Depending on the increase in boron mineral, hardness and density values also increased. It has been determined that it is appropr...
Effect of Ulexite and Boric acid on the friction characteristics of non-asbestos brake pad
Sugözü, Banu | Sugözü, İlker
Brake pads are used to slow down or stop the vehicle by applying force to the disc surface. The most important parameter in brake pad is friction coefficient. The higher the friction coefficient, the shorter the braking distance will be. Different materials are used to increase the friction performance of the brake pad. A limited number of studies have been carried out to increase the friction performance of brake pads by using boron mineral with high temperature resistance. In this study, brake pad was produced by using boron mineral ulexite and boric acid and its effect on braking performance was investigated. Four different brake pad samples containing 1%, 3%, 5%, 7% ulexite and boric acid were produced by powder metallurgy method. Production parameters are the same for all brake pad sa...
Production of boric acid added brake friction composite and the effect of heat treatment on braking characterization
Sugözü, İlker | Sugözü, Banu
Purpose The purpose of this study was to investigate the use of boric acid as a friction modifier material in brake friction composites and to determine the effect of heat treatment applied during production on braking performance. Design/methodology/approach The addition of five different amounts of boric acid was balanced with cashew, which is in the friction modifier material group. The samples were produced in the following order: dry mixing, preforming and hot-pressing. The effect of the heat treatment that can be applied after the hot-pressing process on the braking performance was investigated. The tribological and physical properties of the samples were determined using tests performed according to appropriate standards. The microstructures of the friction surfaces were investigate...