Results 31 to 40 of about 3,971,013 (395)

Modified kagome physics in the natural spin-1/2 kagome lattice systems - kapellasite Cu3Zn(OH)6Cl2 and haydeeite Cu3Mg(OH)6Cl2 [PDF]

, 2008
The recently discovered natural minerals Cu3Zn(OH)6Cl2 and Cu3Mg(OH)6Cl2 are spin 1/2 systems with an ideal kagome geometry. Based on electronic structure calculations, we develop a realistic model which includes couplings across the kagome hexagons ...
Janson, O., Richter, J., Rosner, H.
core   +1 more source

Quantum magnetism in minerals [PDF]

Advances in Physics, 2018
Final version accepted to Adv. Phys. (115 pages, 65 figures, 763 references)
openaire   +2 more sources

High gradient magnetic separation for selective recovery of cathode materials from end-of-life lithium ion batteries [PDF]

AIP Advances
The increasing demand for lithium ion batteries (LIBs) has made lithium and other cathode metals such as cobalt, nickel, and manganese critical resources.
David Rogers, Peng Wang, Petru Andrei
doaj   +1 more source

Characterization of Magnetic Minerals of Iron Sand Pasia Nan Tigo Padang Beach Using X-Ray Diffraction (XRD)

Indonesian Journal of Applied Physics, 2022
The mineral extraction of iron sand from Pasia Nan Tigo Beach has been carried out. Iron sands in this area are widely spread and have decent potential but have not been used optimally.
Ardilla Nofri Yuwanda, Riza Rahmayuni, Dwi Anisa Visgun, Anisa Rahmi, Hamdi Rifai, Letmi Dwiridal   +5 more
doaj   +1 more source

Practical Limits of Ionic Magnetophoresis for Rare-Earth Separation

IEEE Access
Magnetic separation has been proposed as an attractive alternative to the current chemistry-based purification processes of rare-earths because it is envisioned to be much more environmentally friendly.
Petru Andrei
doaj   +1 more source

The Use of GPR in Delineating an Iron Sand Boundary and the Determination of Its Electromagnetic Wave Velocity: A Case Study in Jepara, Central Java [PDF]

ITB Journal of Engineering Science, 2005
Exploring the vertical extent of iron sand deposit is challenging as conventional geophysical methods (electrical resistivity, geomagnetic, and seismic refraction) are inappropriate and unsuccessful in delineating the iron sand deposit from the bedrock ...
S. Bijaksana, I. Rusyanti, M. I. T. Taib, L. A. Pasasa, A. S. Andreas   +4 more
doaj  

Magnetic separation of titanium-containing minerals

Vestnik MGTU, 2019
The studies have been carried out on the Afrikanda (the Murmansk region) titanium-containing minerals segregation by magnetic separation. The technological scheme of ore preparation and further enrichment is developed taking into account the ...
Andronov G. P., Filimonova N. M., Khokhulya M. S.   +2 more
doaj   +1 more source

MAGNETIC PROPERTIES OF WEAK-MAGNETIC MINERALS OF KRYVBASS IRON QUARTZITES

Геохімія техногенезу, 2020
To reduce the metal loss after grinding in the ore-dressing process, the authors studied the magnetic properties of minerals in Kryvyi Rig oxidized quartzites and determined the possibility of their flocculation.
Hubina V., Kurochkin G., Hubin G., Korolenko M.   +3 more
doaj   +1 more source

Solid-state NMR characterisation of the thermal transformation of a Hungarian white illite [PDF]

, 2005
1H, 27Al, 29Si and 39K solid-state NMR are reported from a Hungarian illite 2:1 clay for samples heated up 1600 °C. This single-phase sample has a small amount of aluminium substitution in the silica layer and very low iron-content (0.4 wt%).
Ban, Bastow, Brindley, Brindley, Brown, Brown, D.L. Carroll, Deer, Drachman, Drits, Earnest, Engelhardt, Fitzgerald, Fitzgerald, Freude, Grim, Grim, Hayashi, He, Herrero, Jaymes, Jaymes, Kunath-Fandrei, Kunath-Fandrei, Kunwar, Lambert, Lambert, Lausen, M.E. Smith, MacKenzie, Mackenzie, Mackenzie, Massiot, Massiot, McConville, Merwin, Michael, Murad, Rehak, Roch, Rocha, Rocha, Sanchez-Soto, Sanz, Sanz, Schairer, Schroeder, Slade, Smith, Smith, Smith, Smith, T.F. Kemp, T.J. Bastow, Watanabe, Woessner, Worrall   +56 more
core   +1 more source

Modeling transport of paramagnetic ions in porous materials [PDF]

AIP Advances
A mathematical model based on a drift–diffusion theory is proposed to describe the transport of paramagnetic ions under magnetic field gradients in porous materials.
Petru Andrei
doaj   +1 more source