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Tape casting and lost carbonate sintering processes for production of heat sinks for portable electronics
Department of Material Science and Engineering, University of Sheffield, Sir Robert Hadfield Building, Mappi n Street, Sheffield, S1 3JD, UK. Department of Mechanical and Energy Engineering, College of Engineering and Technology, Botswana International University of Science and Technology, Plot 10071, Boseja Ward, Palapye, Private Bag 16, Botswana, UK .
Department of Material Science and Engineering, University of Sheffield, Sir Robert Hadfield Building, Mappi n Street, Sheffield, S1 3JD, UK.
Department of Mechanical Engineering, University of Sheffield, Mappin Building, Mappin Street, Sheffield, S1 3JD, UK.ORCID iD: 0000-0003-1304-3686
2017 (English)In: Advanced Materials Letters, ISSN 0976-3961, E-ISSN 0976-397X, Vol. 8, no 7, p. 807-812Article in journal (Refereed) Published
Abstract [en]

Porous copper was fabricated by means of a powder metallurgy process applied to tape casting. Lost Carbonate Sintering (LCS) was employed to control porosity within the component during processing. The weight ratio of the potassium carbonate introduced into the matrix ranged from 30-40 wt%. Additives such as; plasticizers, binders, dispersant and solvents were utilized to control the properties throughout the processes and ease fabrication. The component was debinded and sintered at 400 °C and 900 °C respectively, under vacuum. The potassium carbonate was removed from the sintered component via dissolution in water. By using X-ray Florescence (XRF) and Energy Dispersive X-ray Spectrometry (EDS) techniques, the effectiveness of the dissolution route at removing the space holder was investigated. The results shows that porous copper produced in this way has porosity ranging from 75-85 % and pore size from 500-766 mm. The component produced has thickness ranging from 1300 -1800 mm.

Place, publisher, year, edition, pages
International Association of Advanced Materials , 2017. Vol. 8, no 7, p. 807-812
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Other Health Sciences
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Health Science
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URN: urn:nbn:se:ltu:diva-63175DOI: 10.5185/amlett.2017.7074OAI: oai:DiVA.org:ltu-63175DiVA, id: diva2:1091639
Available from: 2017-04-27 Created: 2017-04-27 Last updated: 2020-12-07Bibliographically approved

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Elbadawi, Mohammed

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