Structural and magnetic properties of rare-earth-free MnAl(MCNT)/Fe nanocomposite magnets processed by resin-bonding technique

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F20%3A00007721" target="_blank" >RIV/46747885:24620/20:00007721 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/content/pdf/10.1007/s10854-020-03532-2.pdf" target="_blank" >https://link.springer.com/content/pdf/10.1007/s10854-020-03532-2.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10854-020-03532-2" target="_blank" >10.1007/s10854-020-03532-2</a>

Result language

angličtina

Original language name

Structural and magnetic properties of rare-earth-free MnAl(MCNT)/Fe nanocomposite magnets processed by resin-bonding technique

Original language description

In this study, the potential of multi-walled carbon nanotubes (MCNT) in processing rare-earth-free MnAl(MCNT)/Fe nanocomposite magnets was exploited through adopting a combination of surfactant-assisted milling and resin-bonding techniques. The required hard and soft magnetic phases such as MnAl(MCNT) and α-Fe, respectively, were individually subjected to surfactant-assisted high-energy ball milling. The surfactant-coated MnAl(MCNT) and Fe nanopowders, thus, obtained were characterized with respect to their structural and magnetic properties. Relatively, a very high coercivity, Hc (4.48 kOe), was obtained for the surfactant-coated MnAl(MCNT) powders after 6 h of milling, while in the case of Fe powders with high saturation magnetization, Ms (218.6 emu/g) was achieved at 3 h of surfactant-assisted milling. The MnAl(MCNT) powders with high Hc were mixed with the Fe powders of high Ms with diferent weight percentages: 0, 5 and 10. The nanocomposite powder mixtures were further milled for 1 h and then processed in the form of resin bonded magnets under aligning magnetic feld of 20 kOe. The obtained bonded nanocomposite magnet, i.e. MnAl(MCNT) with 5 wt% of Fe addition demonstrated a good combination of high Ms (63.7 emu/g) and high Hc (4.46 kOe).

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Materials Science - Materials in Electronics

ISSN

0957-4522

e-ISSN

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Volume of the periodical

31

Issue of the periodical within the volume

12

Country of publishing house

CH - SWITZERLAND

Number of pages

10

Pages from-to

9878-9887

UT code for WoS article

000531698200001

EID of the result in the Scopus database

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