Influence of Crab Shell on Tribological Characterization of Eco-Friendly Products Based Non Asbestos Brake Friction Materials

Paper #:
  • 2015-01-2676

Published:
  • 2015-09-27
DOI:
  • 10.4271/2015-01-2676
Citation:
Lenin Singaravelu, D., Vijay, R., and Rahul, M., "Influence of Crab Shell on Tribological Characterization of Eco-Friendly Products Based Non Asbestos Brake Friction Materials," SAE Technical Paper 2015-01-2676, 2015, doi:10.4271/2015-01-2676.
Abstract:
Eco friendly materials are highly demanded and required for brake friction applications due to its environmental friendliness, crab shell powder and palm kernel shell powders are among them. Crab shell and palm kernel shell powders are produced by grinding their shells respectively to fine mesh and for crab shell powder; it was treated with various solutions for further processing. In this present work, the friction composites are developed in the form of standard brake pads from crab shell powder following the weight percentage of 4, 8, 12 and compensated by palm kernel shell powder with a weight percentage of 12, 8, 4. The developed pads are designated as Na01, Na02, and Na03. The physical, chemical, thermal and mechanical properties was characterized using IS 2742 (Part-3) and ISO-6312 Standards. The weight loss was predicted using TGA since the temperature rise during braking will rise up to 400°C. The crab shell and palm kernel shell powders were tested for TGA analysis, which shows the degradation temperature was high resulting less weight loss in case of crab shell powder. This also reflected in the TGA of the developed composites with high percentage of crab shell powder (Na03). The fade and recovery characterizations were done on full scale inertia brake dynamometer following the JASO-C-406 Standard which showed the Na03 had less fade and high recovery enhancing friction with less wear due to its high thermal stability. The worn surface morphology was carried out on SEM and AFM.
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