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Suspension Plasma-Sprayed Thermal Barrier Coatings for Light-Duty Diesel Engines
University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing.ORCID iD: 0000-0002-6619-8799
Volvo Car Corporation, Göteborg, Sweden.
University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing. (PTW)ORCID iD: 0000-0002-9578-4076
University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing.ORCID iD: 0000-0002-4201-668x
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2019 (English)In: Journal of thermal spray technology (Print), ISSN 1059-9630, E-ISSN 1544-1016, Vol. 28, no 7, p. 1674-1687Article in journal (Refereed) Published
Abstract [en]

Demands for improved fuel efficiency and reduced CO2 emissions of diesel engines have been the driving force for car industry in the past decades. One way to achieve this would be by using thermal spraying to apply a thermal insulation layer on parts of the engine’s combustion chamber. A candidate thermal spray process to give coatings with appropriate properties is suspension plasma spray (SPS). SPS, which uses a liquid feedstock for the deposition of finely structured columnar ceramic coatings, was investigated in this work for application in light-duty diesel engines. In this work, different spray processes and materials were explored to achieve coatings with optimized microstructure on the head of aluminum pistons used in diesel engine cars. The functional properties of the coatings were evaluated in single-cylinder engine experiments. The influence of thermo-physical properties of the coatings on their functional properties has been discussed. The influence of different spray processes on coating formation on the complex piston head profiles has been also discussed. The results show that SPS can be a promising technique for producing coatings on parts of the combustion chamber, which can possibly lead to higher engine efficiency in light-duty diesel engines.

Place, publisher, year, edition, pages
2019. Vol. 28, no 7, p. 1674-1687
National Category
Energy Engineering
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URN: urn:nbn:se:hv:diva-14511DOI: 10.1007/s11666-019-00923-8Scopus ID: 2-s2.0-85074254826OAI: oai:DiVA.org:hv-14511DiVA, id: diva2:1360850
Available from: 2019-10-14 Created: 2019-10-14 Last updated: 2019-11-13

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Uczak de Goes, WellingtonMarkocsan, NicolaieGupta, Mohit Kumar

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