Effects of annealing process on magnetic properties and structures of Nd–Pr–Ce–Fe–B melt-spun powders

2016 ◽  
Vol 406 ◽  
pp. 239-243 ◽  
Author(s):  
Kun Pei ◽  
Min Lin ◽  
Aru Yan ◽  
Xing Zhang
Keyword(s):  
Magnetic Properties ◽  
Annealing Process ◽  
Melt Spun

Optimization of Structure and Magnetic Properties of NdFeBTi Nanocomposite Magnets

2012 ◽  
Vol 186 ◽  
pp. 206-211
Author(s):  
Daniela Derewnicka ◽  
Piotr Dłużewski ◽  
Marzena Spyra ◽  
Hanna Krztoń
Keyword(s):  
Magnetic Properties ◽  
Phase Composition ◽  
Electron Microscope ◽  
Amorphous Ribbon ◽  
Annealing Process ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nanocomposite Magnets ◽  
Transmission Electron ◽  
Melt Spun

This study investigated alloys with the composition Nd9Fe77B14 and Nd9Fe73Ti4B14 (at.%). Materials were melt spun in the form of a partially amorphous ribbon, which was subsequently annealed at 953K in order to obtain the optimum magnetic properties. The highest properties were obtained for annealing lasting 20 minutes (JHC = 913kA/m, Jr = 0,84T, BHmax = 107kJ/m3). Annealing at 953K results in simultaneous crystallisation in the whole mass of the alloy. The growth of grains is controlled by the duration of the annealing process. The objective of this work was to study the mechanisms of crystallisation and the reasons for a finer structure resulting from the presence of titanium. The phase composition was evaluated by X-ray diffraction. The microstructure was studied using a high-resolution transmission electron microscope. Detailed analysis of titanium distribution in the grains and in the grain boundaries was examined by x-ray spectrometry.

Microstructure and magnetic properties in as-cast and melt spun Co–Zr alloys

2015 ◽  
Vol 644 ◽  
pp. 7-12 ◽  
Author(s):  
Mithun Palit ◽  
J. Arout Chelvane ◽  
Himalay Basumatary ◽  
D. Aravindha Babu ◽  
S.V. Kamat
Keyword(s):  
Magnetic Properties ◽  
Melt Spun ◽  
Microstructure And Magnetic Properties ◽  
Zr Alloys

Structural and magnetic properties of melt-spun Y1−Gd Co2 (0 ⩽x⩽ 1) alloys

2015 ◽  
Vol 618 ◽  
pp. 258-262 ◽  
Author(s):  
A. Wisniewski ◽  
R. Puzniak ◽  
Z. Śniadecki ◽  
A. Musiał ◽  
M. Jarek ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Melt Spun ◽  
Structural And Magnetic Properties

Magnetic properties of Nd60−xYxFe30Al10 (x=0,10,30) melt-spun ribbons containing two amorphous magnetic phases

2002 ◽  
Vol 91 (11) ◽  
pp. 9267-9271 ◽  
Author(s):  
Z. G. Sun ◽  
W. Löser ◽  
J. Eckert ◽  
K.-H. Müller ◽  
L. Schultz
Keyword(s):  
Magnetic Properties ◽  
Magnetic Phases ◽  
Melt Spun ◽  
Melt Spun Ribbons

Phase transformation, grain refinement and magnetic properties in melt-spun SmCo7−x(Cr3C2)x (x=0–0.25) ribbons

2009 ◽  
Vol 479 (1-2) ◽  
pp. 78-81 ◽  
Author(s):  
L.Y. Li ◽  
A. Yan ◽  
J.H. Yi ◽  
G.T. Zhang ◽  
W. Xie ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Phase Transformation ◽  
Grain Refinement ◽  
Melt Spun

Composition-dependent magnetic properties of melt-spun La or/and Ce substituted nanocomposite NdFeB alloys

2016 ◽  
Vol 483 ◽  
pp. 69-74 ◽  
Author(s):  
M. Hussain ◽  
L.Z. Zhao ◽  
C. Zhang ◽  
D.L. Jiao ◽  
X.C. Zhong ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Melt Spun
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