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Tribological behaviour of carbon-filled PPS composites in water lubricated contacts
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Maskinelement.ORCID-id: 0000-0002-8285-9841
Institute for Composite Materials (IVW GmbH), Technical University of Kaiserslautern.
Institute for Composite Materials (IVW GmbH), Technical University of Kaiserslautern.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Maskinelement.ORCID-id: 0000-0003-1454-1118
2015 (engelsk)Inngår i: Wear, ISSN 0043-1648, E-ISSN 1873-2577, Vol. 328-329, s. 456-463Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The present study aims at investigating the tribological behaviour of polyphenylene sulfide (PPS) composites in water lubricated sliding contact against a metallic (Inconel) counterpart. Factorial combinations of three commercially available carbon based fillers namely short carbon fibers (SCF), multi-walled carbon nanotubes (MWNT) and graphite (Gr) were utilized as single, dual- and multi-modal reinforcement.Reduction in wear of more than three orders of magnitude and a reduction in friction of more than 60% were achieved for the composite containing short carbon fibers as compared to neat PPS. However, incorporation of MWNTs and/or Gr marginally influenced the friction and wear behaviour of the PPS composites. X-ray photoelectron spectroscopy (XPS) of the worn counter surfaces confirmed the formation of a reaction layer on the Inconel counterpart. Further investigations utilizing Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS) revealed the formation of nano-tribo-layers on load bearing plateaus of the Inconel counter surface.It can be concluded that the sliding wear resistance of the short carbon fibers, the enhanced polymer transfer, and the formation of a nano-tribo-layer on the counter surface are mainly responsible for the outstanding tribological behaviour of short carbon fiber reinforced PPS composites in water lubricated sliding conditions.

sted, utgiver, år, opplag, sider
2015. Vol. 328-329, s. 456-463
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URN: urn:nbn:se:ltu:diva-5012DOI: 10.1016/j.wear.2015.03.012ISI: 000355360100049Scopus ID: 2-s2.0-84926654072Lokal ID: 306e2ee2-745e-41d1-94ea-51863febdb9dOAI: oai:DiVA.org:ltu-5012DiVA, id: diva2:977886
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Validerad; 2015; Nivå 2; 20150323 (andbra)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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