EVOLUTION OF THE PHASE COMPOSITION OF (Nd,Pr,Dy)-Fe-B MAGNETS DURING STEPPED ANNEALING
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F14%3A86090232" target="_blank" >RIV/61989100:27360/14:86090232 - 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
EVOLUTION OF THE PHASE COMPOSITION OF (Nd,Pr,Dy)-Fe-B MAGNETS DURING STEPPED ANNEALING
Original language description
X-ray diffraction analysis and simulation of X-ray diffraction patterns are used to study the phase composition of sintered (Nd,Pr,Dy)-Fe-B magnets prepared from powder mixtures with 2% DyH2 addition. After optimum heat treatment, which includes 1-h holding at 500 °C followed by quenching in gaseous nitrogen, the magnets exhibit high magnetic properties: Br= 1.29 T, jHc= 1309 kA/m, Hk = 1220 kA/m, (BH)max = 322 kJ/m3. The phase composition of the magnets comprises the principal hard magnetic phase basedon the Nd2Fe14B compound, (Nd,Pr,Dy)-rich phase and (Nd,Pr,Dy)-O oxides. The magnets are subjected to progressive lowtemperature heatings in a temperature range of 250-500 °C, annealing at 550 °C, medium-temperature annealing at 900 °C, and high-temperature annealing at 1070 °C to study the stability of hysteretic magnetic characteristics. The heat treatments are shown to lead to changes in the lattice parameters of the Nd2Fe14Bbased phase and appearance of additional reflections, which
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
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)
Others
Publication year
2014
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 2014: 23rd International Conference on Metallurgy and Materials: conference proceedings : May 21st-23rd 2014, hotel Voroněž I, Brno, Czech Republic, EU
ISBN
978-80-87294-54-3
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
1416-1422
Publisher name
Tanger
Place of publication
Ostrava
Event location
Brno
Event date
May 21, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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