The effect of hydrogen decrepitation process and heat treatment on magnetic properties and structure 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%2F11%3A86081208" target="_blank" >RIV/61989100:27360/11:86081208 - 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
The effect of hydrogen decrepitation process and heat treatment on magnetic properties and structure of sintered Nd-Fe-B magnets
Original language description
Sintered Nd-Fe-B based magnets were prepared by traditional powder metallurgy by the following two methods: i) preparation of sintered magnets without hydrogen assisted processing, and ii) using the hydrogen decrepitating process (HD) as one of preparation stages of as-cast alloys for crushing. On the basis of thermokinetic measurements a conclusion is made that the heat treatment of sintered magnets has strong effect on the amounts of absorbed hydrogen in Nd2Fe14B and an intergranular Nd-rich phases. Acorrelation between structural changes and hysteresis properties of heat treated permanent magnets has been established. It was suppose that the transformations of Nd-rich phase microstructure owing to absorption-desorption hydrogen could be the reasonof changes in coercivity of sintered magnets with heat treatment.
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
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
20th Anniversary International Conference on Metallurgy and Materials: METAL 2011
ISBN
978-80-87294-24-6
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
1058-1062
Publisher name
Tanger
Place of publication
Ostrava
Event location
Brno
Event date
May 18, 2011
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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