| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Olofsson, Ulf
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2023Characterization of ultrafine particles from hardfacing coated brake rotorscitations
- 2023Characterization of ultrafine particles from hardfacing coated brake rotorscitations
- 2022Simulation of thermal and mechanical performance of laser cladded disc brake rotorscitations
- 2021Laser Cladding Treatment for Refurbishing Disc Brake Rotorscitations
- 2021Tribology and airborne particle emission of laser-cladded fe-based coatings versus non-asbestos organic and low-metallic brake materialscitations
- 2020A study of the effect of brake pad scorching on tribology and airborne particle emissionscitations
- 2020A study of the effect of brake pad scorching on tribology and airborne particle emissionscitations
- 2020Airborne wear particle emissions produced during the dyno bench tests with a slag containing semi-metallic brake padscitations
- 2020Grey Cast Iron Brake Discs Laser Cladded with Nickel-Tungsten Carbide—Friction, Wear and Airborne Wear Particle Emissioncitations
- 2020Influence of the DIN 3962 Quality Class on the Efficiency in Honed Powder Metal and Wrought Steel Gearscitations
- 2019A pin-on-disc study on the tribology of cast iron, sinter and composite railway brake blocks at low temperaturescitations
- 2019A PIN-ON-DISC STUDY ON THE FRICTION, WEAR AND AIRBORNE PARTICLE EMISSION FROM RECYCLED BRAKE PAD MATERIAL
- 2018A friction, wear and emission tribometer study of non-asbestos organic pins sliding against alsic mmc discscitations
- 2018On the influence of car brake system parameters on particulate matter emissionscitations
- 2017Pin-on-Disc Study of Tribological Performance of Standard and Sintered Gear Materials Treated with Triboconditioning Process: Pre-treatment by Pressure-induced Tribo-film formationcitations
- 2016A study of the efficiency of spur gears made of powder metallurgy materials - ground versus super-finished surfacescitations
- 2015A pin-on-disc study of the tribology characteristics of sintered versus standard steel gear materialscitations
- 2010Mapping Railway Wheel Material Wear Mechanisms and Transitionscitations
- 2010A pin-on-disc simulation of airborne wear particles from disc brakescitations
- 2010Size, shape, and elemental composition of airborne wear particles from disc brake materialscitations
- 2008On Airborne Wear Particles Emissions ofCommercial Disc Brake Materials– A Pin on Disc Simulation
- 2008Airborne Wear Particles Emissions fromCommercial Disc Brake Materials– Passenger Car Field Test
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document
A PIN-ON-DISC STUDY ON THE FRICTION, WEAR AND AIRBORNE PARTICLE EMISSION FROM RECYCLED BRAKE PAD MATERIAL
Abstract
A brake pad is usually replaced before it is totally worn off. Some of these pads are re-melted as scarps in electrical arc furnace process, arising some concerns for the potential emissions due to the combustion of the organic component of the friction material and pad underlayer. To a lower extent, the other exhaust pads are taken to the scrap yard as waste. The concept of this study is to recycle the replaced brake pads, by ball milling the residual friction material into powders followed by hot compressing into new brake pads. A pin-on-disc tribometer designed for particle emission measurement is used to test the virgin and recycled friction material against a commercial cast iron brake rotor material in a controlled environment, to assess their tribological properties. Three factors (pressure, sliding speed and material) form a 23 full factorial experiment. Two pressure levels (1.2 MPa and 0.3 MPa), two sliding speed levels (2 m/s and 1m/s) are tested on two materials (virgin and recycled). The contact conditions correspond to typical city traffic conditions. Coefficient of friction (CoF), total wear of the pin and disc sample, particle generation rate are the response variables from the tests. The results show that the recycled brake pad averages a greater CoF and lower total wear than the virgin brake pad under the current test conditions. This is likely due to the more homogenous microstructure distribution of the recycled pins. Under tougher braking condition (1.2 MPa + 2 m/s) and normal braking condition (1.2 MPa + 1 m/s and 0.3 MPa + 2 m/s), the recycled brake pad demonstrates lower particle generation rate than virgin brake pad. When the pressure and sliding speed are both low (0.3 MPa + 1 m/s), the recycled brake pad has greater particle generation rate than virgin brake pad. In this regard, the results confirm the feasibility of the proposed recycling procedure. However, for a full assessment and validation of the process, two main further actions are required. One is to compare the current tribological results with those obtained with pins extracted from real pads, considering also the possible effect of pad scorching, will be conducted. The other is to conduct a complete life cycle analysis, providing reliable indications as concerns the scaling up of the recycling approach to industrial level.