Investigations into sol-gel silica and silica hybrid coatings for dielectromagnetic soft magnetic composite applications

Hdl Handle:
http://hdl.handle.net/10149/98295
Title:
Investigations into sol-gel silica and silica hybrid coatings for dielectromagnetic soft magnetic composite applications
Authors:
Pang, Y. X. (Yongxin); Hodgson, S. N. B. (Simon); Weglinski, B. (Bogumil); Gaworska, D. (Dominika)
Affiliation:
University of Teesside. School of Science and Technology.
Citation:
Pang, Y. X. et. al. (2006) 'Investigations into sol-gel silica and silica hybrid coatings for dielectromagnetic soft magnetic composite applications', Journal of Materials Science, 41 (18), pp.5926-5936.
Publisher:
Springer Verlag
Journal:
Journal of Materials Science
Issue Date:
Aug-2006
URI:
http://hdl.handle.net/10149/98295
DOI:
10.1007/s10853-006-0360-9
Abstract:
A series of inorganic and organic-inorganic hybrid silica coatings were synthesised by a sol-gel process from tetraethoxysilane (TEOS) and methyltrimethoxysilane (MTMS) precursors, and used to investigate their effectiveness as insulation materials in dielectromagnetic soft magnetic composites. The coating materials and coated iron powders were analysed by FTIR, electron and atomic force microscopy. Results showed that introduction of the organic phase imparted desirable hydrophobicity and flexibility to the coating, whilst still providing effective electrical insulation at temperatures up to 500 °C. The hybrid coatings covered the iron particle surface very effectively and formed continuous coatings that could remain intact even after compaction at pressures up to 900 MPa, depending on the coating amount. Initial magnetic characterisations are also encouraging. As a result, such hybrid-coated iron powders can be considered suitable candidates as heat-treatable high-performance dielectromagnetics.
Type:
Article
Language:
en
Keywords:
atomic force microscopy; coatings; fourier transform infrared spectroscopy; insulation; magnetic materials; sol-gels
ISSN:
0022-2461; 1573-4803
Rights:
Author can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 10/05/2010]
Citation Count:
3 [Scopus, 10/05/2010]

Full metadata record

DC FieldValue Language
dc.contributor.authorPang, Y. X. (Yongxin)en
dc.contributor.authorHodgson, S. N. B. (Simon)en
dc.contributor.authorWeglinski, B. (Bogumil)en
dc.contributor.authorGaworska, D. (Dominika)en
dc.date.accessioned2010-05-10T10:25:27Z-
dc.date.available2010-05-10T10:25:27Z-
dc.date.issued2006-08-
dc.identifier.citationJournal of Materials Science; 41(18):5926-5936en
dc.identifier.issn0022-2461-
dc.identifier.issn1573-4803-
dc.identifier.doi10.1007/s10853-006-0360-9-
dc.identifier.urihttp://hdl.handle.net/10149/98295-
dc.description.abstractA series of inorganic and organic-inorganic hybrid silica coatings were synthesised by a sol-gel process from tetraethoxysilane (TEOS) and methyltrimethoxysilane (MTMS) precursors, and used to investigate their effectiveness as insulation materials in dielectromagnetic soft magnetic composites. The coating materials and coated iron powders were analysed by FTIR, electron and atomic force microscopy. Results showed that introduction of the organic phase imparted desirable hydrophobicity and flexibility to the coating, whilst still providing effective electrical insulation at temperatures up to 500 °C. The hybrid coatings covered the iron particle surface very effectively and formed continuous coatings that could remain intact even after compaction at pressures up to 900 MPa, depending on the coating amount. Initial magnetic characterisations are also encouraging. As a result, such hybrid-coated iron powders can be considered suitable candidates as heat-treatable high-performance dielectromagnetics.en
dc.language.isoenen
dc.publisherSpringer Verlagen
dc.rightsAuthor can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 10/05/2010]en
dc.subjectatomic force microscopyen
dc.subjectcoatingsen
dc.subjectfourier transform infrared spectroscopyen
dc.subjectinsulationen
dc.subjectmagnetic materialsen
dc.subjectsol-gelsen
dc.titleInvestigations into sol-gel silica and silica hybrid coatings for dielectromagnetic soft magnetic composite applicationsen
dc.typeArticleen
dc.contributor.departmentUniversity of Teesside. School of Science and Technology.en
dc.identifier.journalJournal of Materials Scienceen
ref.citationcount3 [Scopus, 10/05/2010]en
or.citation.harvardPang, Y. X. et. al. (2006) 'Investigations into sol-gel silica and silica hybrid coatings for dielectromagnetic soft magnetic composite applications', Journal of Materials Science, 41 (18), pp.5926-5936.-
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