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Theoretical models of thermal conductivity and the relationship with electrical conductivity for compressed metal powder
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
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2019 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This Independent Project reviews literature about the effect of pressure and temperature on thermal conductivity in packed beds and its relationship with electrical conductivity. Exploring the relationships between thermal conductivity, porosity and pressure can give useful knowledge for further improvements in manufacturing processes in the field of powder metallurgy. The resulting theoretical models describing the effective thermal conductivity show that gas and contact conductance dominate at lower temperatures and that radiation gains dominance as the temperature increases. Modifications of the models covered in this report can be made in order to simulate the process of interest more accurately. It was also shown that Wiedemann-Franz law could be of interest when wanting to quantify the thermal conductivity in a powder compact. Furthermore, a lab manual for a future Independent Project was developed.

Place, publisher, year, edition, pages
2019. , p. 34
Series
TVE-K ; 19004TVE-Q ; 19003
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:uu:diva-387636OAI: oai:DiVA.org:uu-387636DiVA, id: diva2:1329792
Educational program
Master Programme in Materials Engineering; Master Programme in Chemical Engineering
Presentation
2019-06-03, ITC, Lägerhyddsvägen 2, Uppsala, 10:00 (English)
Supervisors
Examiners
Available from: 2019-06-28 Created: 2019-06-24 Last updated: 2019-06-28Bibliographically approved

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Type fulltextMimetype application/pdf

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Department of Engineering Sciences
Metallurgy and Metallic Materials

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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