Results 221 to 230 of about 4,114 (260)

Efficient Recovery of Neodymium from Neodymium–Iron–Boron Magnet

2018
Many postconsumer electrical and electronic equipment wastes contain a considerable amount of rare earth elements (REEs); however, the current level of REE recycling from them is limited (
Jiakai Zhang, Feixiong Zhang, Gisele Azimi   +2 more
openaire   +1 more source

Magnetic susceptibility of neodymium hexaboride

Solid State Communications, 1968
Abstract Measurements of the magnetic susceptibility of NdB 6 are reported for temperatures between 4° and 250°K. The results indicate that the compound undergoes an antiferro-to-paramagnetic transition at T N = 8.45°K. The mass susceptibility at T = 298°K was determined to be χ m = 23.8 × 10 -6 e.m.u./g, while the value at T N = 8.45°K was ...
H. Hacker, M.S. Lin
openaire   +1 more source

Magnetic hardening in iron-neodymium-boron permanent magnets

Journal of Applied Physics, 1985
The origin of magnetic hardening has been examined in Fe-Nd-B magnets by correlating the magnetic properties with the microstructure and magnetic domain structure observed with electron microscopy. Hysteresis loops and susceptibility studies show a magnetic anomaly at around 140 K. Microstructure studies reveal the presence of at least four phases with
G. C. Hadjipanayis, K. R. Lawless, R. C. Dickerson   +2 more
openaire   +1 more source

Micrometer scale magnetization of neodymium magnet for integrated magnetic MEMS

2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS), 2016
In order to fabricate integrated magnetic MEMS devices containing complex micro-magnetic circuits, a micrometer scale magnetization technique for magnet substrates is required. Miniaturization of the magnetization pattern generated by pulse magnetization is limited due to heat resistance and the arrangement of the micro-coils. In this paper, we discuss
Ryogen Fujiwara, Wataru Hijikata, Tadahiko Shinshi   +2 more
openaire   +1 more source

Magnetism in neodymium at high pressure

Journal of Physics: Condensed Matter, 1996
We have carried out magnetic neutron diffraction studies of a single crystal of neodymium at high pressure, using clamp cells on the diffractometer D10 at the Institut Laue-Langevin, Grenoble. The magnetic ordering was investigated at pressures up to 14 kbar in the temperature range 1.4-25 K.
D Watson, E M Forgan, W J Nuttall, P E Sokol, S J Shaikh, S W Zochowski, D Fort   +6 more
openaire   +1 more source

Magnetic Properties of Neodymium Single Crystals

Physical Review, 1957
Magnetic measurements have been made on single crystals of neodymium which were grown by the Bridgman technique. At 20.4\ifmmode^\circ\else\textdegree\fi{}K and above, the susceptibility obtained with the field perpendicular to the ${c}_{0}$ axis of the hexagonal crystal is greater than that obtained with the field parallel to the ${c}_{0}$ axis.
D. R. Behrendt, S. Legvold, F. H. Spedding   +2 more
openaire   +1 more source

Magnetic phase diagram of neodymium monosulfide

Soviet Journal of Low Temperature Physics, 1986
The magnetic properties of an antiferromagnetic NdS single crystal in magnetic fields up to 11 T were studied. It is shown that the H−T phase diagram contains a tricritical point, separating the region of first- and second-order phase transitions.
V. I. Makarov, V. Z. Kleiner, N. S. Tereshina, V. A. Fisenko   +3 more
openaire   +1 more source

Rapidly Solidified Neodymium-Iron-Boron Magnets

MRS Bulletin, 1988
Permanent magnets have long occupied an important position in technology. Among the multitude of products using permanent magnets are televisions, telephones, computers, videocassette recorders, audio systems, household appliances, and perhaps surprisingly to many consumers, automobiles. Figure 1 illustrates the numerous magnet applications in a modern
J.J. Croat, J.F. Herbst
openaire   +1 more source

Recycling of neodymium enhanced by functionalized magnetic ferrite

Environmental Technology, 2018
This study systematically evaluates Neodymium (Nd) recovery from actual seawaters and wastewater using functionalized magnetic ferrite (3-mercaptopropionic acid-tetraethyl orthosilicate ferrite, MPA-TEOS-ferrite). The recovery of Nd by MPA-TEOS-ferrite displayed an L-shaped nonlinear isotherm, suggesting limiting binding sites on the adsorbent surface.
Yao-Jen, Tu, Chen-Feng, You, Sheng-Chung, Lo, Ting-Shan, Chan, Chuan-Hsiung, Chung   +4 more
openaire   +2 more sources

Hot-pressed neodymium-iron-boron magnets

Applied Physics Letters, 1985
A new method is described which produces fully dense, well-aligned Nd-Fe-B magnets from rapidly quenched ribbons. Full density is achieved by hot pressing at ∼15 kpsi in argon at 700 °C. A second hot press in a larger die cavity to allow deformation transverse to the press direction (die upsetting) introduces a preferred magnetization direction ...
openaire   +1 more source