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Dependency of PM10 particle emission on stability of friction coefficient and character of friction surface
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Tribologi.ORCID iD: 0000-0003-0696-7506
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2016 (English)Conference paper (Refereed)
Abstract [en]

Two pairs of low-metallic brake pads (BP1 and BP2) with different chemical composition as measured using wave dispersive X-ray fluorescence spectroscopy were selected for this study. The brake pads were tested with inertia brake dynamometer adapted for isokinetic sampling of PM10 wear particles. Modified SAE J2707 (part B) testing procedure was used for both test. PM10 particles released during the brake stops were captured under isokinetic conditions on 47mm quartz filter, the particles bigger than 10 micron were removed by PM10 cyclone. The character of the friction surface of brake pads was studied using scanning electron microscopy. It was observed that COF of sample BP1 grows during the individual brake events from approx. 0.4 to 0.7; while the COF obtained for BP2 shows stable value approx. 0.4 during individual brake stops. The average PM10 concentration in given experimental set-up reached value 1.47 and 0.56 mg/m3 for sample BP1 and BP2, respectively.

Place, publisher, year, edition, pages
2016.
National Category
Tribology
Research subject
Machine Design
Identifiers
URN: urn:nbn:se:kth:diva-198292OAI: oai:DiVA.org:kth-198292DiVA: diva2:1056116
Conference
Eurobrake 2016, Milano, Italy 13-15 June (2016)
Projects
EU REBRAKE
Funder
EU, FP7, Seventh Framework Programme
Note

QCR 20161219

Available from: 2016-12-14 Created: 2016-12-14 Last updated: 2016-12-19Bibliographically approved

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