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Structural and magnetic properties of heat-treated ultrafine single crystalline Nd2Fe14B particles obtained by ball-milling of dynamic hydrogenation disproportionation desorption and recombination powder

Pal, S. K. ; Schultz, L. ; Gutfleisch, O. (2014)
Structural and magnetic properties of heat-treated ultrafine single crystalline Nd2Fe14B particles obtained by ball-milling of dynamic hydrogenation disproportionation desorption and recombination powder.
In: Scripta Materialia, 78-79
doi: 10.1016/j.scriptamat.2014.01.024
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

Isolated single crystalline Nd2Fe14B particles (200-500 nm) prepared by wet/surfactant-assisted ball milling were heat-treated at different temperatures under high vacuum, and structural and magnetic properties were investigated. Maximum coercivity values of 0.73 and 0.70 T were obtained after 400 degrees C heat-treatment for oleic acid and ethanol milled samples, respectively. With a further increase in the heat-treatment temperature the coercivity decreases. An increase in alpha-Fe and Nd2O3 phases and a sharp change of lattice parameter - c were observed when heat-treating above 400 degrees C.

Typ des Eintrags: Artikel
Erschienen: 2014
Autor(en): Pal, S. K. ; Schultz, L. ; Gutfleisch, O.
Art des Eintrags: Bibliographie
Titel: Structural and magnetic properties of heat-treated ultrafine single crystalline Nd2Fe14B particles obtained by ball-milling of dynamic hydrogenation disproportionation desorption and recombination powder
Sprache: Englisch
Publikationsjahr: 2014
Verlag: PERGAMON-ELSEVIER SCIENCE LTD
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Scripta Materialia
Jahrgang/Volume einer Zeitschrift: 78-79
DOI: 10.1016/j.scriptamat.2014.01.024
Kurzbeschreibung (Abstract):

Isolated single crystalline Nd2Fe14B particles (200-500 nm) prepared by wet/surfactant-assisted ball milling were heat-treated at different temperatures under high vacuum, and structural and magnetic properties were investigated. Maximum coercivity values of 0.73 and 0.70 T were obtained after 400 degrees C heat-treatment for oleic acid and ethanol milled samples, respectively. With a further increase in the heat-treatment temperature the coercivity decreases. An increase in alpha-Fe and Nd2O3 phases and a sharp change of lattice parameter - c were observed when heat-treating above 400 degrees C.

Freie Schlagworte: Magnetism, Nd2Fe14B, Coercivity, Surfactant-assisted ball-milling, Heat treatment
Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Funktionale Materialien
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften
Hinterlegungsdatum: 03 Mär 2015 12:03
Letzte Änderung: 03 Mär 2015 12:03
PPN:
Sponsoren: This research was performed with the support of the Siemens/DAAD Post Graduate Program through scholarship.
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