Results 71 to 80 of about 3,804,411 (250)

Some metal-graphite and metal-ceramic composites for use as high energy brake lining materials [PDF]

Materials were studied as candidates for development as potential new aircraft brake lining materials. These families were (1) copper-graphite composites; (2) nickel-graphite composites; (3) copper - rare-earth-oxide (gadolinium oxide (Gd2O3) or ...
Bill, R. C.
core   +1 more source

Recovery of Rare Earth Elements from Waste Phosphate-Based Phosphors Containing Glass by Pre-Enrichment—Alkali Roasting Method

Separations
Based on the physicochemical properties of waste phosphate-based rare earth phosphors containing glass, this paper proposes a novel recovery method for rare earth elements (REEs) that integrates pre-enrichment, alkali roasting, and enhanced leaching ...
Yufang Qin, Shaochun Hou, Chenghong Liu, Burenbayaer Borjigin, Xuejie Zhang, Chunlei Guo, Bo Zhang   +6 more
doaj   +1 more source

Kitaev materials beyond iridates: order by quantum disorder and Weyl magnons in rare-earth double perovskites

, 2017
Motivated by the experiments on the rare-earth double perovskites, we propose a generalized Kitaev-Heisenberg model to describe the generic interaction between the spin-orbit-entangled Kramers' doublets of the rare-earth moments.
Chen, Gang, Li, Fei-Ye, Li, Yao-Dong, Paramekanti, Arun, Yu, Yue   +4 more
core   +1 more source

Effect of Chinese policies on rare earth supply chain resilience

Resources, Conservation and Recycling, 2019
Rare earths elements (REE) are considered as strategic resources because they interact with business and governments’ direct policy interventions. Policy interventions can have a major effect on security of rare earth supply (Kooroshy et al., 2015).
N. Mancheri, Benjamin Sprecher, G. Bailey, Jianping Ge, A. Tukker   +4 more
semanticscholar   +1 more source

Study on alkali liquor roasting and sulphuric acid leaching of bayan obo rare earth concentrate

Metalurgija, 2018
Take the roasted ore after the alkali liquor roasting and decomposition of Bayan Obo rare earth concentrate as the raw material, and use the sulphuric acid leaching to extract the elements including rare earth, thorium, tetravalent cerium, etc.
W. L. Guo, Y. H. Xu, D. Q. Cang, S. F. Ma, H. Tian, Z. J. Meng, X. X. Zhang   +6 more
doaj  

Rare‐earth‐incorporated low‐dimensional chalcogenides: Dry‐method syntheses and applications

InfoMat, 2020
Chalcogenide thin films incorporating rare‐earth (RE) elements with applications in optics, electronics, and magnetics have received considerable attention. Aiming at growing pure chalcogenides, dry‐method syntheses have been developed.
Zheshan Zhang, Hongyang Zhao, Chao Zhang, Feng Luo, Yaping Du   +4 more
doaj   +1 more source

Excited bands in odd-mass rare-earth nuclei

, 2002
Normal parity bands are studied in 157Gd, 163Dy and 169Tm using the pseudo SU(3) shell model. Energies and B(E2) transition strengths of states belonging to six low-lying rotational bands with the same parity in each nuclei are presented. The pseudo SU(3)
Draayer, J. P., Hirsch, J. G., Vargas, C. E.   +2 more
core   +3 more sources

Tailoring thermal properties of multi-component rare earth monosilicates

, 2020
This work explores the possibility of tailoring the thermal conductivity and thermal expansion of rare earth monosilicates through the introduction of multiple rare earth cations in solid solution.
M. Ridley, J. Gaskins, P. Hopkins, E. Opila   +3 more
semanticscholar   +1 more source

Tempering and modification of basic oxygen furnace slag with blast furnace slag: Mineral phase transformations and cementitious material enrichment mechanisms

Case Studies in Construction Materials
This study investigates the phase evolution and enrichment mechanism of the cementitious materials in a blend of blast furnace (BF) and basic oxygen furnace (BOF) slags.
Shuai Hao, Guoping Luo, Lin Wang, Shengli An, Yifan Chai, Wei Song   +5 more
doaj   +1 more source

Thermoelectric properties of junctions between metal and strongly correlated semiconductor

, 2000
We propose a junction of metal and rare-earth compound semiconductor as the basis for a possible efficient low-temperature thermoelectric device. If an overlayer of rare earth atoms differing from the bulk is placed at the interface, very high values of ...
Aeppli G., L. J. Sham, Massimo Rontani
core   +1 more source