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
Fabrication and soft magnetic properties of rapidly quenched Co-Fe-B-Si-Nb ultra-thin amorphous ribbons
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Engineering Material Physics.ORCID iD: 0000-0003-2170-0076
Show others and affiliations
2019 (English)In: Journal of Magnetism and Magnetic Materials, ISSN 0304-8853, E-ISSN 1873-4766, Vol. 483, p. 54-58Article in journal (Refereed) Published
Abstract [en]

Ultra-thin soft magnetic amorphous ribbons of Co-Fe-B-Si-Nb alloy were synthesised by a single step rapid-quenching approach to acquire advantage of improved material performance and lower costs over commercial amorphous alloys. The amorphous ribbons of approximately 5.5 µm thicknesses were quenched by a single roller melt spinner in a single-step production process and characterised for their structural and magnetic properties. The disordered atomic structure of amorphous ribbons was confirmed by the X-ray diffraction. A surface morphology study revealed the continuity of ultra-thin ribbons without pores over a large scale. The amorphous alloy showed the ultra-soft magnetic properties in the as-quenched state. The observed thickness dependency of the magnetic properties was attributed to the increased surface roughness and possibly due to a lack of densely packed atomic structure resulting from the extremely high cooling rates experienced by ultra-thin ribbons. We propose that in-situ thinning process of amorphous ribbons significantly reduces the basic material cost and eliminates the need for post-processing steps; hence it provides the opportunity for mass production of high-performance soft magnetic amorphous ribbons at relatively lower costs.

Place, publisher, year, edition, pages
Elsevier B.V. , 2019. Vol. 483, p. 54-58
Keywords [en]
Amorphous metals, High-frequency applications, Soft-magnetic properties, Ultra-thin ribbons, Amorphous alloys, Crystal atomic structure, In situ processing, Iron alloys, Magnetic properties, Magnetism, Niobium alloys, Silicon alloys, Surface roughness, High cooling rates, Material performance, Production process, Soft magnetic properties, Structural and magnetic properties, Ultra-thin, Amorphous silicon
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-252492DOI: 10.1016/j.jmmm.2019.03.079ISI: 000471858100009Scopus ID: 2-s2.0-85063231036OAI: oai:DiVA.org:kth-252492DiVA, id: diva2:1337146
Note

QC 20190711

Available from: 2019-07-11 Created: 2019-07-11 Last updated: 2019-07-29Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Ström, Valter

Search in DiVA

By author/editor
Ström, Valter
By organisation
Engineering Material Physics
In the same journal
Journal of Magnetism and Magnetic Materials
Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 14 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