Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Thermal Swing Evaluation of Thermal Spray Coatings for Internal Combustion Engines
University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing. (PTW)ORCID iD: 0000-0002-6619-8799
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. (PTW)ORCID iD: 0000-0002-4201-668x
2022 (English)In: Coatings, ISSN 2079-6412, Vol. 12, no 6Article in journal (Refereed) Published
Abstract [en]

The efficiency of internal combustion engines is gaining increased interest due to the impact of fuel consumption on greenhouse gas emissions and the goals of countries to minimize emissions. Thermal barrier coatings (TBCs) have shown great potential in improving the efficiency of internal combustion engines. The TBCs, applied on the surface of the piston, apart from thermal isolation, should also follow the surface temperature variations in the combustion chamber, reducing the energy loss and not affecting volumetric efficiency, and thus accomplish a raise in fuel efficiency. This characteristic of the TBC can be associated with the thermal properties, but the best performance test for TBCs is the single cylinder engine test. The single cylinder engine test is an expensive and time demanding procedure, making it not easily accessible. The purpose of this work was to develop a thermal swing test method to evaluate the applicability of TBCs in the combustion chamber of an internal combustion engine. This was carried out by measuring the temperature variation on the surface of the coating (thermal swing response) exposed to heat pulses from a high velocity air fuel (HVAF) spray torch. The TBCs were tested as sprayed (AS) and after grinding them to reduce roughness (RR) in order to ensure similar thickness and roughness along the different TBCs. Characterization of the coating microstructure was carried by scanning electron microscopy (SEM) together with image analysis techniques, and the thermal properties were measured by laser flash analysis (LFA). By correlating the thermal swing response with the microstructure and thermal properties of the coatings, it was determined that the coatings with large open pores exhibited the highest thermal swing response, which was as high as 200 degrees C.

Place, publisher, year, edition, pages
MDPI, 2022. Vol. 12, no 6
Keywords [en]
thermal barrier coatings; internal combustion engines; porous coatings; thermal swing test
National Category
Manufacturing, Surface and Joining Technology
Research subject
Production Technology
Identifiers
URN: urn:nbn:se:hv:diva-19213DOI: 10.3390/coatings12060830ISI: 000817534200001Scopus ID: 2-s2.0-85132374761OAI: oai:DiVA.org:hv-19213DiVA, id: diva2:1719992
Funder
Knowledge Foundation, 20210092
Note

CC-BY 4.0

Available from: 2022-12-16 Created: 2022-12-16 Last updated: 2022-12-16

Open Access in DiVA

fulltext(5484 kB)157 downloads
File information
File name FULLTEXT01.pdfFile size 5484 kBChecksum SHA-512
3cdf4e25665bc90430c00ce0b600a7c2eb80610ea7fc78d163854419d22c5afb3f4406314a02334b85d705655d6387675bb65dd257067cf1f64d0d94e50d4aff
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopus

Authority records

Uczak de Goes, WellingtonMarkocsan, NicolaieGupta, Mohit Kumar

Search in DiVA

By author/editor
Uczak de Goes, WellingtonMarkocsan, NicolaieGupta, Mohit Kumar
By organisation
Division of Subtractive and Additive Manufacturing
In the same journal
Coatings
Manufacturing, Surface and Joining Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 157 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 55 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf