About: Effect of Dy Addition and Heat Treatment Conditions on the Magnetic Properties of (Nd,Dy)-Fe-B-based Sintered Magnets

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About: Effect of Dy Addition and Heat Treatment Conditions on the Magnetic Properties of (Nd,Dy)-Fe-B-based Sintered Magnets Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Two production methods of sintered Nd-Fe-B magnets were compared, and the effect of heat treatment (НТ) regimes on magnetic properties of these magnets was studied. Sintered (Nd,Dy)-Fe-В magnets with ~3 wt.% Dy were prepared using method of single alloy and method of “mixtures” which means the mixing of powders of a basic alloy whose composition is close to the Nd2Fe14B composition and additional low-melting Dy/Co-based alloy. Two types of post-sintering HT were used. The HT1 consists in the cooling from 950 °C to the aging temperature (Tag), 5 min aging at Tag and cooling to RT. The HT2 consists in the cooling from 950 °C to RT, repeated heating up to Tag, 5 min aging and cooling to RT. It was shown that the HT regimes affect substantially the coercive force of both types of magnets. It was also found that the aging-temperature dependences Hci(Tag) corresponding to regimes of HT1 and HT2 differ markedly. An analysis of these dependences has revealed some phase microstructure transformations occurring in magnets in a temperature range of 400 – 600 °C. Two production methods of sintered Nd-Fe-B magnets were compared, and the effect of heat treatment (НТ) regimes on magnetic properties of these magnets was studied. Sintered (Nd,Dy)-Fe-В magnets with ~3 wt.% Dy were prepared using method of single alloy and method of “mixtures” which means the mixing of powders of a basic alloy whose composition is close to the Nd2Fe14B composition and additional low-melting Dy/Co-based alloy. Two types of post-sintering HT were used. The HT1 consists in the cooling from 950 °C to the aging temperature (Tag), 5 min aging at Tag and cooling to RT. The HT2 consists in the cooling from 950 °C to RT, repeated heating up to Tag, 5 min aging and cooling to RT. It was shown that the HT regimes affect substantially the coercive force of both types of magnets. It was also found that the aging-temperature dependences Hci(Tag) corresponding to regimes of HT1 and HT2 differ markedly. An analysis of these dependences has revealed some phase microstructure transformations occurring in magnets in a temperature range of 400 – 600 °C. (en)
Title	Effect of Dy Addition and Heat Treatment Conditions on the Magnetic Properties of (Nd,Dy)-Fe-B-based Sintered Magnets Effect of Dy Addition and Heat Treatment Conditions on the Magnetic Properties of (Nd,Dy)-Fe-B-based Sintered Magnets (en)
skos:prefLabel	Effect of Dy Addition and Heat Treatment Conditions on the Magnetic Properties of (Nd,Dy)-Fe-B-based Sintered Magnets Effect of Dy Addition and Heat Treatment Conditions on the Magnetic Properties of (Nd,Dy)-Fe-B-based Sintered Magnets (en)
skos:notation	RIV/61989100:27360/12:86084319!RIV13-MSM-27360___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED0040/01/01)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Drápala, Jaromír Kursa, Miroslav
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Fakulta metalurgie a materiálového inženýrství
http://linked.open...dnocenehoVysledku	133017
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/12:86084319
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	coercive force; heat treatment; sintered magnets; Nd2Fe14B alloy (en)
http://linked.open.../riv/klicoveSlovo	sintered magnets Nd2Fe14B alloy coercive force heat treatment
http://linked.open...ontrolniKodProRIV	[96244900912D]
http://linked.open...v/mistoKonaniAkce	Brno
http://linked.open...i/riv/mistoVydani	Ostrava
http://linked.open...i/riv/nazevZdroje	METAL 2012 : 21st International Conference on Metallurgy and Materials : conference proceedings
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Regional materials science and technology centre
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Drápala, Jaromír Kursa, Miroslav Menushenkov, V. Savchenko, A.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2012-05-23 (xsd:date)
number of pages	5 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Tanger s.r.o.
https://schema.org/isbn	978-80-87294-31-4
http://localhost/t...ganizacniJednotka	27360

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