Projects per year
Abstract / Description of output
A plain bearing 1 with an overlay 2 of a composite coating comprising a bismuth or Bi-based alloy matrix and one or more soft particles 5 with a Mohs hardness of ≤ 5 dispersed within the matrix. A further aspect relates to a method of manufacturing the coating and overlay 2 via electro-deposition or electroless plating from a bath in which the particles are dispersed by ultrasound or megasound and potentially a further agitation method. The ultrasound or megasound and optional further agitation method may be applied during or before the electrodeposition stage. The soft particle 5 may be PTFE, a metal fluoride or sulphate, graphite, hexagonal boron nitride, phyllosilicate or lead or zinc oxide. The coating 2 may also contain hard particles with a Mohs hardness of ≥5.5, such as metal oxides, borides, carbides, nitrides and silicides, diamond, CNTs, or graphene. The soft lubricant particles 5 and optional hard particles may be between 1 nm and 5 µm in size, and take up 0.0001 to 30 % of the volume of the composite coating. The bearing 1 may have a bronze-based or aluminium-based alloy lining material 3, and possibly an interlayer between 5 nm and 15 µm thick comprising Ni, Cu, Ag, Cr, Co. Fe, Mn, Au, Zn or alloys thereof located between the bearing lining 3 and composite coating. The composite coating 2 forming part of the plain bearing 1 may be between 1 and 50 µm thick.
Original language | English |
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Patent number | GB2534120 |
IPC | F16C33/12,C22C12/00,C25D5/20, C25D5/22,C25D7/10 |
Publication status | Published - 20 Jul 2016 |
Externally published | Yes |
Fingerprint
Dive into the research topics of 'Bismuth-based composite coating for overlay applications in plain bearings'. Together they form a unique fingerprint.Projects
- 1 Finished
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KTP008500: Knowledge Transfer Partnership between Coventry University and Daido Industrial Bearings Europe
1/07/11 → 1/07/13
Project: Project from a former institution
Research output
- 1 Chapter
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Novel Bismuth-based tribological coatings for high performance internal combustion engine bearing applications
Tudela, I., 26 Jul 2015, Proceedings M2D2015: 6th International Conference in Mechanics and Materials in Design. Silva Gomes, J. F. & Meguid, S. A. (eds.). INEGI/FEUP, p. 1933 1938 p. 5586Research output: Chapter in Book/Report/Conference proceeding › Chapter
Open Access