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Synthesis and characterizationof rare earth free magnetic materialsfor permanent magnet applications
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström.
2013 (English)Independent thesis Basic level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In this thesis the compounds Fe5SiB2 and Fe5PB2 have beensynthesized via high temperature synthesis, including arc melting anddrop synthesis. The structure for both compounds are of Cr5B3 typewith the space group I4/mcm. The cell parameters were refined toa = 5.5533 Å and c = 10.3405 Å for Fe5SiB2 and a = 5.4903 Å andc = 10.3527 Å for Fe5PB2. The saturation magnetization at roomtemperature for Fe5SiB2 has been measured to 138.8 Am2/kg and theanisotropy constant has been estimated to 79 kJ/m3. Theferromagnetic properties and the high anisotropy constant makesthese materials promising as permanent magnet materials, but moreinvestigations are necessary.

Place, publisher, year, edition, pages
2013. , 22 p.
Series
UPTEC K, ISSN 1650-8297 ; 13008
Keyword [en]
permanent magnet, magnetism, intermetallic compounds, iron alloys
Keyword [sv]
permanentmagneter, magnetism, intermetalliska föreningar, järnlegeringar
National Category
Other Chemical Engineering
Identifiers
URN: urn:nbn:se:uu:diva-200882OAI: oai:DiVA.org:uu-200882DiVA: diva2:625291
Educational program
Master Programme in Chemical Engineering
Presentation
(English)
Uppsok
Technology
Supervisors
Examiners
Available from: 2013-07-04 Created: 2013-06-04 Last updated: 2013-07-04Bibliographically approved

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