Results 11 to 20 of about 399,833 (294)

Study of microstructure and mechanical properties of Mg–3Y-1REmOn composites by Y-REmOn (RE=La, Ce, Sm, Gd) in-situ reaction

open access: yesJournal of Materials Research and Technology, 2023
The expensive cost of master alloys for preparing high-performance Mg rare-earth alloys has prevented their large-scale production and application. This paper demonstrates that some inexpensive rare-earth oxides can replace the corresponding master ...
Liang Ren   +5 more
doaj   +1 more source

Quantitative comparison of linear magnetic gear with different types of PMs [PDF]

open access: yes, 2013
This paper presents a quantitative comparison between the non-rare-earth permanent magnet (PM) and rare-earth PM based linear magnetic gear. By using the finite element analysis, three linear magnetic gears adopting either the non-rare-earth PM or rare ...
Chau, KT, CHEN, M, Li, WL, Liu, C
core   +1 more source

Effect of Rare Earth Element on Microstructure and Properties of in situ Synthesized TiB2/Al Composites

open access: yesCailiao gongcheng, 2018
The effect of rare earth element Ce, Sc and Er on TiB2 particles and matrix alloy micros-tructure of TiB2/Al composites was studied with in situ synthesis method. It shows that the addition of rare earth element improves the microstructure and properties
QU Min   +5 more
doaj   +1 more source

Metabolomic Analysis Reveals Contributions of Citric and Citramalic Acids to Rare Earth Bioleaching by a Paecilomyces Fungus. [PDF]

open access: yes, 2019
Conventional methods for extracting rare earth elements from monazite ore require high energy inputs and produce environmentally damaging waste streams. Bioleaching offers a potentially more environmentally friendly alternative extraction process.
Alvarez-Cohen, Lisa   +2 more
core   +1 more source

Cost-effectiveness comparison of coaxial magnetic gears with different magnet materials [PDF]

open access: yes, 2013
This paper presents a comparative study between the non-rare-earth permanent magnet (PM) and rare-earth PM based coaxial magnetic gears. Firstly, by using finite element analysis, the electromagnetic performances of four coaxial magnetic gears which are ...
Chau, KT, Chen, M, Li, WL, Liu, C
core   +4 more sources

Rare earth element contents, geochemistry of soil samples between Burdur and Isparta region and assessment of their origin

open access: yesBulletin of the Mineral Research and Exploration, 2020
This study was carried out in 5 locations between Burdur and Isparta in the inner southern part of Isparta Bend. The study aims to determine the rare earth element (REE) concentrations in the soil samples collected from the field and to interpret the ...
Ebru Tat, Mustafa Gurhan Yalcın
doaj   +1 more source

Rare earth elements from waste

open access: yesScience Advances, 2022
Rare earth elements (REEs) are critical materials in electronics and clean technologies. With the diminishing of easily accessible minerals for mining, the REE recovery from waste is an alternative toward a circular economy. Present methods for REE recovery suffer from lengthy purifications, low extractability, and high wastewater streams.
Bing Deng   +6 more
openaire   +2 more sources

Investigation of rare earth elements in drinking water of typical rare earth mining and non-mining areas in three provinces of China

open access: yesZhongguo shipin weisheng zazhi, 2021
ObjectiveTo explore the concentrations of rare earth elements (Rare earth elements, REEs) in drinking water in rare earth mining and non-mining areas in Shandong, Guangdong, and Jiangxi provinces of China.MethodsTypical rare earth mining areas and 3 non ...
LOU Minhan   +8 more
doaj   +1 more source

Anisotropic electrical and thermal magnetotransport in the magnetic semimetal GdPtBi

open access: yes, 2020
The half-Heusler rare-earth intermetallic GdPtBi has recently gained attention due to peculiar magnetotransport phenomena that have been associated with the possible existence of Weyl fermions, thought to arise from the crossings of spin-split conduction
Abdel-Haq, Wajdi   +16 more
core   +3 more sources

Geochemical Discrimination of Monazite Source Rock Based on Machine Learning Techniques and Multinomial Logistic Regression Analysis

open access: yesGeosciences, 2020
Detrital monazite geochronology has been used in provenance studies. However, there are complexities in the interpretation of age spectra due to their wide occurrence in both igneous and metamorphic rocks. We use the multinomial logistic regression (MLR)
Keita Itano   +3 more
doaj   +1 more source

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