Natural fiber reinforced non-asbestos brake friction composites: Influence of ramie fiber on physico-mechanical and tribological properties

Singh, T and Kumar, N and Ashok Raj, J and Grewal, JS and Patnaik, A and Fekete, G (2019) Natural fiber reinforced non-asbestos brake friction composites: Influence of ramie fiber on physico-mechanical and tribological properties. In: Materials Research Express, 6 (11).

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Abstract

The effect of ramie fiber on the physical, tribological and mechanical properties of automotive brake friction composites is studied. Physical and mechanical properties of the composite samples were evaluated as per industrial standards while tribological properties were evaluated in a Chase machine following IS 2472-4 test procedure. The properties such as density, ash content and hardness were found to decrease whereas; porosity, water absorption and compressibility were found to increase with increased ramie fiber content. The tribological outcomes reveal that friction coefficient and friction stability exhibit a decreasing trend whereas fade-, recovery-, wear, friction variability and fluctuations show an increasing trend with increased ramie fiber content. The maximum performance coefficient of friction (0.547), maximum friction stability (0.93), lowest fade- (22.12), lowest fiction variability (0.33), lowest wear (1.16 g) and least friction fluctuations (0.178) were registered for 5 wt ramie fiber reinforced composite indicating its excellent tribological performance. The study of worn surfaces reveals that the formation of contact plateaus on the composite surface plays a vital role in controlling the tribological properties of the composites. © 2019 IOP Publishing Ltd.

Item Type:	Journal Article
Publication:	Materials Research Express
Publisher:	Institute of Physics Publishing
Additional Information:	The copyright for this article belongs to Institute of Physics Publishing.
Keywords:	Asbestos; Automobile parts and equipment; Brakes; Fiber reinforced plastics; Friction; Hemp; Mechanical properties; Natural fibers; Reinforcement; Tribology; Water absorption; Wear of materials, Brake materials; Mechanical and tribological properties; Natural fiber reinforced; Physical and mechanical properties; physico-mechanical; Polymer composite; Ramie fibers; Tribological performance, Friction materials
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	05 Jan 2023 10:06
Last Modified:	05 Jan 2023 10:06
URI:	https://eprints.iisc.ac.in/id/eprint/78792

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