| Title | Characterization study on eco-friendly break pad material using sorghum husk-derived Si3N4 and biochar friction modifier |
|---|---|
| ID_Doc | 14512 |
| Authors | Manoj, E; Selvakumar, G; Prakash, SR; Jacob, A |
| Title | Characterization study on eco-friendly break pad material using sorghum husk-derived Si3N4 and biochar friction modifier |
| Year | 2024 |
| Published | Biomass Conversion And Biorefinery, 14, 4 |
| Abstract | In this study, an eco-friendly break pad material using sorghum husk-derived Si3N4 and biochar novel friction modifier was development and characterized. The primary objective of this present study was to replace the already used friction modifier such as alumina and graphite with low-cost eco-friendly sorghum husk biomass-derived Si3N4 and biochar. The Si3N4 was synthesized using thermo-chemical process whereas low-temperature pyrolysis was used to synthesis the biochar. The composites were prepared using a compression molding process followed by post-curing at 120 C-o. The results of this study revealed that the addition of Si3N4 as frictional modifier improved the mechanical properties. The highest tensile, flexural, impact, compression, hardness, and lap shear strength of 138 MPa, 192 MPa, 6.7 J/m, 152 MPa, 94 shore D, and lap 17 MPa were noted for composite contain friction modifier of Si3N4 and biochar as 12:8 (N4). The SEM images revealed highly reacted phases of reinforcements as well as toughness improved matrix. Similarly, the composite designation N3 with 10:10 friction modifier produced improved wear resistance of 0.12 mm(3)/Nm of sp. Wear rate and 0.24 of COF. The optical microscope image of worn surfaces revealed waviness for low Si3N4 constant and flat for higher loading. Moreover the thermal conductivity of Si3N4 rich N5 composite (15:5) records the lowest value of 0.214 W/mK. Thus, the replacement addition of Si3N4 and biochar for alumina and graphite is worth full to maintain the brake pad requirements as well as minimize the environmental impact and improve the circular economy. These eco-friendly brake pads developed using biomass-derived friction modifiers could be used in automotives, electric motors, e vehicles, and bicycles. |
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