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Fabrication and sof...
Fabrication and soft magnetic properties of rapidly quenched Co-Fe-B-Si-Nb ultra-thin amorphous ribbons
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Masood, A. (författare)
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Baghbaderani, H. A. (författare)
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- Ström, Valter (författare)
- KTH,Teknisk materialfysik
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Stamenov, P. (författare)
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McCloskey, P. (författare)
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Mathúna, C. Ó (författare)
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Kulkarni, S. (författare)
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(creator_code:org_t)
- Elsevier B.V. 2019
- 2019
- Engelska.
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Ingår i: Journal of Magnetism and Magnetic Materials. - : Elsevier B.V.. - 0304-8853 .- 1873-4766. ; 483, s. 54-58
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- 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
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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