Showing 41 - 60 results of 84 for search '"Earth element"', query time: 0.07s Refine Results
  1. 41

    Development of Open Transport of Aqueous Fluid from Pegmatite Revealed by Trace Elements in Garnet by Astin Nurdiana, Atsushi Okamoto, Masaoki Uno, Noriyoshi Tsuchiya

    Published 2022-01-01
    “…Chondrite-normalized rare earth element (REE) patterns of garnets in the pegmatites in the quartz diorite and metamorphic unit are generally characterized by enrichment of heavy REEs and negative Eu anomalies with the REE contents in the schists which are systematically lower than in the pegmatites. …”
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  2. 42

    Study of Corrosion Behavior of Mg–Gd-Based Soluble Magnesium Alloys by Qinghua Wang, Zhiquan Huang, Yanchun Zhu, Ling Qin, Jingfeng Zou, Lifeng Ma

    Published 2025-01-01
    “…Electrochemical testing further confirmed that the Mg<sub>5</sub>Gd second phase, formed through the incorporation of the rare-earth element Gd, exhibited high electrochemical activity.…”
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  3. 43

    New View on the Genesis of the Bashuihe Pluton, Laoshan Granites, China: Indications from Fluid Inclusions and H–O Isotopes by Huimin Liu, Zhaojun Song, Hongbo Yan, Wenyu Wang, Xinru Wang, Yifang Sun, Haonan Li

    Published 2021-01-01
    “…The results of a whole rock, H–O isotopes, rare earth element, and high field strength element analysis on the Laoshan alkali granites suggest significant hydrothermal activity in the late stage of magmatism. …”
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  4. 44

    Hydrochemical Characteristics and Evolution Mode of Cold Seeps in the Qiongdongnan Basin, South China Sea by Zhifeng Wan, Chongmin Chen, Jinqiang Liang, Wei Zhang, Wei Huang, Pibo Su

    Published 2020-01-01
    “…The Na+-Cl-, K+-Cl-, Mg2+-Cl-, and Ca2+-Cl- diagrams and rare earth element distribution curves of the water samples were strongly affected by seawater. …”
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  5. 45

    Comparison of microstructures and magnetic properties of Tb-Pr-Cu-Al and Tb-Nd-Cu-Al grain boundary diffused Nd-Fe-B magnets by Zixiang Mo, Qingzheng Jiang, Mengping Kan, Jianming Li, Hang Wang

    Published 2025-03-01
    “…Low melting alloys containing heavy rare earth element Tb have been widely used for grain boundary diffusion (GBD) to increase the coercivity (Hcj) of sintered Nd-Fe-B magnets. …”
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  6. 46

    Petrogenesis of Intrusive body in Northeast of Joveinan, North of Isfahan, Urumieh- Dokhtar magmatic zone by Shahzad Sherafat, Majid Zeidi, Mahnaz Khodami

    Published 2024-10-01
    “…The chondrite-normalized rare earth elements diagrams show a medium enrichment of LREE compared to HREE, a weak negative anomaly of Europium, and a flat pattern of heavy rare earth elements. …”
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  7. 47

    Reserves and extraction of rare earth metals and elements as a key factor in the renewable energy sector development at the the world economy transformation current stage by R. D. Mingaleeva

    Published 2023-06-01
    “…At the same time, for output of the wide range of products for the renewable energy sector, as well as for the development of energy depot systems, it is necessary to use rare earth elements and metals in production. The results of the analysis of data on reserves, production and calculated values of the resource availability coefficient of rare earth elements and metals shows that at the existing level of production, the proven reserves of cobalt will last for ≈ 50 years, lithium– for ≈ 200 years and rare earth elements – for ≈ 450 years, respectively, which leads to a limitation of the global transition speed to renewable energy sources and makes it necessary to look for new technical solutions.…”
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  8. 48

    DEVELOPMENTS AND USING OF COMPLEX PREPARATIONS FOR REFINEMENT AND MODIFICATION OF ALUMINIUM ALLOYS by S. P. Korolyov, A. M. Galushko, V. M. Mihajlovskij

    Published 2011-09-01
    “…Different reactions of interaction of such modifiers as sodium, strontium, sulfur, phosphorus and rare-earth elements with components, impurity of aluminum alloys and between each other, are investigated.…”
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  9. 49

    Temperature-Dependent Generalized Planar Fault Energy and Twinnability of Mg Microalloyed with Er, Ho, Dy, Tb, and Gd: First-Principles Study by Lili Liu, Yelu He, Dingxing Liu, Xiaozhi Wu, Rui Wang

    Published 2016-01-01
    “…On the other hand, alloying rare earth elements will generally decrease the fault energies and increase the ductility and twinnability of Mg at different temperature. …”
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  10. 50

    Studies of the Effect of Crosslinking in the Strongly Basic Anion Exchanger Dowex 1 and the HNO Concentration Employed on the Separation of the Sm–Nd Pair in the Polar Organic Solv... by Z. Hubicki, M. Olszak

    Published 2001-04-01
    “…Equally, the application of rare earth elements in metallurgy, catalysis, ceramics, etc. remains of significant importance. …”
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  11. 51

    New Insights on Quality, Safety, Nutritional, and Nutraceutical Properties of Honeydew Honeys from Italy by Andrea Mara, Federica Mainente, Vasiliki Soursou, Yolanda Picó, Iratxe Perales, Asma Ghorab, Gavino Sanna, Isabel Borrás-Linares, Gianni Zoccatelli, Marco Ciulu

    Published 2025-01-01
    “…Similarly, the mineral composition did not vary significantly, whereas rare earth elements appeared to be promising markers for classifying their origin. …”
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  12. 52

    The Enrichment Mechanism of REE at Sulfate and Methane Transition Zone (SMTZ) of the Northern Part of the South China Sea by Xie Rui, Wu Daidai, Wei Jiangong, Wang Liaoliang, Liu Lihua, Li Wenjing, Wu Gang, Guo Xudong

    Published 2022-01-01
    “…Rare earth elements (REE) are important raw materials for electronic products and green-energy technology and deep-sea sediment as an important potential source of REE mineral. …”
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  13. 53

    Investigation on the microstructure evolution and deformation behavior of Mg–2Zn-0.5Mn-0.2Ca-xNd/yLa alloy by in-situ tensile by Jie Mi, Shengquan Liang, Shiyu Luan, Qianlong Ren, Xin Che, Peipeng Jin

    Published 2025-01-01
    “…Multi-microalloying rare earth elements are expected to improve the properties of magnesium alloys. …”
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  14. 54

    Study of Ce0.9Tb0.05Ln0.05O1.975 compounds as ceramic pigments by Šulcová P., Vitásková L., Trojan M.

    Published 2008-01-01
    “…This work is focused on mixed oxides based on ceria which are doped by rare earth elements, i.e. compounds with formula Ce0.9Tb0.05Ln0.05O1.975, where Ln means lanthanides. …”
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  15. 55

    Metasomatism and REE mineralization of the Zilair Formation sedimentary rocks in the Khudolaz complex gabbro massif exocontact zone (Chebarkul area, Southern Urals) by Evgeny I. Mikheev, Ildar R. Rakhimov, Elena O. Shaparenko, Elena I. Soroka

    Published 2025-01-01
    “…The sources of rare earth elements could be both the Zilair Formation sedimentary rocks and gabbro, as evidenced by the increase in REE concentrations and isotopic composition of oxygen and carbon in silicate-carbonate metasomatites (δ18OSMOW =13.80…15.98 ‰, δ13С = –5.64…–2.18). …”
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  16. 56

    Printed circuit board recycling: a focus on a novel, efficient and sustainable process for spent critical metals recovery by Charpentier, Nicolas M., Xia, Dong, Gabriel, Jean-Christophe P.

    Published 2024-05-01
    “…These tailored methods offer enhanced efficiency and improved environmental sustainability for recycling valuable and critical elements such as rare earth elements, tantalum, and platinum group metals. Notably, our approach not only demonstrates superior sustainability but also offers increased economic viability, making it a more financially profitable solution.…”
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  17. 57

    Reactions of o,o′-Dihydroxy Azo Dyes with the Third Group M(III) Ions: A Spectroscopic and Electrochemical Study by Solomiya Pysarevska, Liliya Dubenska, Ivan Spanik, Jaroslav Kovalyshyn, Sofia Tvorynska

    Published 2013-01-01
    “…The chelation is responsible for interaction of these dyes with Al(III), Sc(III), rare earth elements (REE) ions, Ga(III), and In(III). The complexes were studied using vis- and IR-spectrometry. …”
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  18. 58

    USE OF ISOTOPE DILUTION METHOD FOR DETERMINATION OF Ce, Sm, AND Yb ABUNDANCES IN GEOLOGICAL SAMPLES BY ICP-MS by Cao Đông Vũ, Trương Đức Toàn, Nguyễn Đăng Khánh, Đỗ Tâm Nhân, Võ Trần Quang Thái, Nguyễn Lê Anh, Nguyễn Việt Đức, Nguyễn Giằng, Nguyễn Trọng Ngọ

    Published 2019-08-01
    “…For the first time in Vietnam, ID-ICP-MS has been successfully applied to determine three rare earth elements Ce, Sm, and Yb in basaltic geological samples (BHVO-2 and BCR-2) with high accuracy and reproducibility (<5%). …”
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  19. 59

    Chronological Classification of Ancient Mortars Employing Spectroscopy and Spectrometry Techniques: Sagunto (Valencia, Spain) Case by M. Ramacciotti, S. Rubio, G. Gallello, M. Lezzerini, S. Columbu, E. Hernandez, A. Morales-Rubio, A. Pastor, M. de la Guardia

    Published 2018-01-01
    “…Forty-two mortar samples, from two archaeological excavations located in Sagunto (Valencian Community, Spain), were analysed by both portable energy dispersive X-ray fluorescence spectroscopy (pED-XRF) and inductively coupled plasma mass spectrometry (ICP-MS) to determine major and minor elements and traces including rare earth elements (REEs). Collected data were crossed with those previously obtained from Sagunto Castle mortars, and principal component analysis (PCA) was applied to discriminate the construction phases of the unearthed buildings. …”
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  20. 60

    Sm-Nd Isotope Data Compilation from Geoscientific Literature Using an Automated Tabular Extraction Method by Zhixin Guo, Tao Wang, Chaoyang Wang, Jianping Zhou, Guanjie Zheng, Xinbing Wang, Chenghu Zhou

    Published 2025-02-01
    “…Abstract The rare earth elements Sm and Nd significantly address fundamental questions about crustal growth, such as its spatiotemporal evolution and the interplay between orogenesis and crustal accretion. …”
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