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Economic Regulation of Green Projects in Rare Earth Metal Mining [PDF]
The article discusses the development issues of rare earth metal deposits in the context of ensuring low-carbon development. The directions of the use of rare earth metals in renewable energy, including the production of solar panels and wind farms, are ...
Zhao Jier
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This work explores the durability of alkali-activated materials exposed to acidic and alkaline environments to analyze and evaluate their applications. The alkali-activated materials of metakaolin and metakaolin-mine tailings were immersed in solutions ...
Min Yang +5 more
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ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
The impact of Fe/Mn loads on the surface property of rare earth mineral
After using the mixed acid system to modify the surface of rare earth minerals, two transition metals (Fe and Mn) are loaded on the surface of the rare earth minerals by hydrothermal method to improve the NH _3 -SCR (Selective catalytic reduction ...
Yuze Bai +5 more
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The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez +5 more
wiley +1 more source
Rare-earth metals play a very important role in the development of high-tech industries and the research of functional materials. The demand for high-purity rare-earth metals has rapidly increased because of the development of modern society and the rare-
FU Kai +5 more
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Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov +4 more
wiley +1 more source
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee +7 more
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The flotation and adsorption mechanism of wolframite with low-toxic copper ion in the presence of α-hydroxyoctyl phosphinic acid (HPA) were investigated to reduce the use of highly toxic lead nitrate.
Fangxu Li +4 more
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Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar +7 more
wiley +1 more source

