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Brass fillers in friction composite materials: tribological and brake squeal characterization for suitable effect evaluation

Kchaou, Mohamed and Sellami, Amira and Abu Bakar, Abd. Rahim and Mat Lazim, Ahmad Razimi and Elleuch, Riadh and Kumar, Senthil A. Karthick (2015) Brass fillers in friction composite materials: tribological and brake squeal characterization for suitable effect evaluation. Steel And Composite Structures, 19 (4). pp. 939-952. ISSN 1229-9367

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Official URL: http://dx.doi.org/10.12989/scs.2015.19.4.939

Abstract

In this paper, brake pad performance of two organic matrix composites namely, Sample 1 (contains no brass filler) and Sample 2 (contains 1.5% brass filler), is studied based on tribological and squeal noise behavior. In the first stage, a pin-on-disc tribometer is used to evaluate the frictional behavior of the two pads. On the following stage, these pads are tested on squeal noise occurrence using a drag-type brake dynamometer. From the two type of tests, the results show that; (i) brass fillers play a dual role; firstly as reinforcing element of the brake pad providing primary contact sites, and secondly as solid lubricant by contributing to the formation of a layer of granular material providing velocity accommodation between the pad and the disc; (ii) brass fillers contribute to friction force stabilization and smooth sliding behavior; (iii) the presence of small weight quantity of brass filler strongly contributes to squeal occurrences; (iv) there is close correlation between pin-on-disc tribometer and brake dynamometer tests in terms of tribological aspect.

Item Type:Article
Uncontrolled Keywords:brass filler, friction materials, rubbed surface, squeal noise, tribological behavior
Subjects:A General Works
ID Code:57980
Deposited By: Haliza Zainal
Deposited On:04 Dec 2016 12:07
Last Modified:02 May 2017 08:41

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