Effects of additions and heat treament on the microstructure and magnetic properties of sintered Nd-Fe-B magnets
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F13%3A86088442" target="_blank" >RIV/61989100:27360/13:86088442 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Effects of additions and heat treament on the microstructure and magnetic properties of sintered Nd-Fe-B magnets
Original language description
Sintered Nd-Fe-B permanent magnets with an enhanced coercive force were fabricated (i) using the main Nd14,5Dy1,5Fe75Co2B7 alloy and its mixtures with [Dy/Al], Tb2O3, Nd3Co additions and (ii) applying a post-sintering heat treatment of magnets. The average grain size of the Nd2Fe14B phase decreases with increasing contents of [Dy/Al], Tb2O3 and Nd3Co additions and their melting temperatures. The mixing method is effective for all type of additions used. The maximum coercive force magnitudes were reachedafter aging at 550 °C, which was performed after cooling from sintering temperature to room temperature. The same aging performed after cooling from sintering temperature to 550 °C, i.e., without the intermediate cooling does not increase Hci. The correlation between structural changes and hysteretic properties of the heat-treated magnets has been discussed.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Result continuities
Project
<a href="/en/project/ED0040%2F01%2F01" target="_blank" >ED0040/01/01: Regional materials science and technology centre</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
METAL 2013 : 22nd International Conference on Metallurgy and Materials : conference proceedings : May 15th - 17th 2013, Hotel Voronez I, Brno Czech Republic, EU [CD-ROM]
ISBN
978-80-87294-41-3
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
1353-1357
Publisher name
Tanger
Place of publication
Ostrava
Event location
Brno
Event date
May 15, 2013
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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