Latest Publications & Patents on Rare-Earth Elements
This is our latest selection of worldwide publications and patents in english on Rare-Earth Elements, between many scientific online journals, classified and focused on rare-earth element, scandium, yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, rare earth and rare-earth.
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The Influence of Rare Earth Metals on the Microstructure and Mechanical Properties of 220 and 356.1 Alloys for Automotive Industry
Published on 2025-02-21 by Herbert W. Doty, Shimaa El-Hadad, Ehab Samuel, Agnes M. Samuel, Fawzy H. Samuel @MDPI
Abstract: Application of rare earths (RE) as grain refiners is well-known in the technology of aluminum alloys for the automotive industry. In the current study, Al-2.4%Cu-0.4%Mg alloy (coded 220) and Al-7.5%Si-0.35%Mg alloy (coded 356.1), were prepared by melting each alloy in a resistance furnace. Strontium (Sr) was used as a modifier, while titanium boride (TiB2) was added as a grain refiner. Measured amounts of Ce and La were added to both alloys (max. 1 wt.%). The alloy melts were poured in a preheat[...]
Our summary: Influence of rare earth metals on microstructure and mechanical properties of 220 and 356.1 aluminum alloys for automotive industry. Application of rare earths as grain refiners. Study on the effect of Ce and La additions, TiB2 grain refiner, and Sr modifier on alloy properties.
Rare Earth Metals, Microstructure, Mechanical Properties, Aluminum Alloys
Publication
Disclosing the Potential of an Abundant Residue
Published on 2025-02-21 by Carlos A. Vielma, Adela Svobodova-Sedlackova, Josep Maria Chimenos, Ana Inés Fernández, Carlos Berlanga, Rafael Rodriguez, Camila Barreneche @MDPI
Abstract: Red mud (RM), the primary waste product of the aluminium industry, is notable for its high concentrations of metals and rare earth elements (REE). Efforts have been made to develop extraction methods for REE recovery from RM, aiming to enhance its valorisation and reduce the European reliance on external REE sources—particularly crucial for technological advancements and the transition to renewable energy. However, these methods have only been limited to low technology readiness le[...]
Our summary: Characterizing red mud for rare earth element recovery, assessing global prospective potential, exploring eco-friendly reagents for valorisation.
rare earth elements, red mud, extraction methods, circular economy
Publication
Water-Soluble Sacrificial Layer of Sr3Al2O6 for the Synthesis of Free-Standing Doped Ceria and Strontium Titanate
Published on 2025-02-19 by Simone Sanna, Olga Krymskaya, Antonello Tebano @MDPI
Abstract: Epitaxial layers of water-soluble Sr3Al2O6 were fabricated as sacrificial layers on SrTiO3 (100) single-crystal substrates using the Pulsed Laser Deposition technique. This approach envisages the possibility of developing a new generation of micro-Solid Oxide Fuel Cells and micro-Solid Oxide Electrochemical Cells for portable energy conversion and storage devices. The sacrificial layer technique offers a pathway to engineering free-standing membranes of electrolytes, cathodes, and anodes with to[...]
Our summary: Fabrication of water-soluble Sr3Al2O6 sacrificial layers on SrTiO3 substrates enables the synthesis of free-standing doped ceria and strontium titanate films for advanced energy conversion and storage devices. This approach allows for the engineering of ultra-thin membranes with potential applications in mixed electronic and ionic devices. The growth mechanism and structural characterization of the sacrificial layer are discussed, demonstrating the successful transfer of high-quality oxide films onto silicon wafers.
water-soluble, sacrificial layer, epitaxial, Sr3Al2O6
Publication
Quantum repeater for optical network and method
Patent published on the 2025-02-19 in GB under Ref GB2632741 by NANOFIBER QUANTUM TECH INC [JP] (Akihisa Goban [jp], Shinya Kato [jp], Ryotaro Inoue [jp], Takao Aoki [jp])
Abstract: A quantum repeater system comprising one or more intermediary repeater devices, each of the repeater devices comprising: a first fiber optical cable having first and second end regions, first and second fiber Bragg gratings configured on the first and second end regions respectively, a nanofiber region configured from a center portion of the fiber optic cable and coupled between the first end region and second end region, a first and second tapered region configured between the nanofiber region [...]
Our summary: Quantum repeater system with intermediary devices, fiber optic cables, tapered regions, and evanescently coupled atoms for distributing quantum entanglement between repeaters.
quantum repeater, optical network, fiber Bragg gratings, nanofiber region
Patent
An Overview of Existing Impact Assessment Methods
Published on 2025-02-18 by Marco Jabara, Junzhang Wu, Saverio De Franceschi, Alessandro Manzardo @MDPI
Abstract: Mineral resources and metals are integral to modern society, with growing demand driven by recent technological advancements. Life cycle assessment (LCA) provides a valuable framework for assessing resource use, and numerous methodologies have been developed to address both the midpoint and endpoint levels of life cycle impact assessment (LCIA). This review aims to provide a comprehensive overview of the existing LCIA methodologies related to minerals and metals, with a focus on recent developme[...]
Our summary: An overview of existing impact assessment methods focusing on minerals and metals, with a review of LCIA methodologies, including recent developments and potential future directions. The article also explores the criticality of rare earth elements, their limited global reserves, and the need for more reliable data on resource production and recycling. Case studies applying LCIA methods to real-world scenarios are presented to highlight current capabilities and areas for further research.
life cycle assessment, LCIA methodologies, resource use, rare earth elements
Publication
Microstructure, Mechanical Properties, and Corrosion Behavior in Al-5.6Zn-2.5Mg-1.6Cu-0.2Cr Alloy with Minor Yttrium Addition
Published on 2025-02-17 by Ting Yao, Daihong Xiao, Yingjie Yan, Wensheng Liu @MDPI
Abstract: This study systematically investigated the effects of the addition of the rare earth element yttrium (Y) on the microstructural evolution, mechanical properties, and corrosion behavior of as-extruded Al-5.6Zn-2.5Mg-1.6Cu-0.20Cr (wt.%) alloy through comprehensive characterization techniques, including X-ray diffraction (XRD), tensile testing, corrosion analysis, and electron microscopy. Microstructural characterization demonstrated that the incorporation of yttrium resulted in significant refinem[...]
Our summary: This study investigates the effects of yttrium addition on Al-5.6Zn-2.5Mg-1.6Cu-0.2Cr alloy through XRD, tensile testing, corrosion analysis, and electron microscopy. Yttrium refines secondary phase particles, increases LAGB density, and improves corrosion resistance.
Microstructure, Mechanical Properties, Corrosion Behavior, Yttrium Addition
Publication
The Study of Soliton Mode-Locked and Bound States in Erbium-Doped Fiber Lasers Based on Cr2S3 Saturable Absorbers
Published on 2025-02-16 by Dong Li, Ruizhan Zhai, Yongjing Wu, Minzhe Liu, Kun Zhao, Qi Yang, Youwei Dong, Xiaoying Li, Xiaoyang Wu, Zhongqing Jia @MDPI
Abstract: Femtosecond fiber lasers are widely utilized across various fields and also serve as an ideal platform for studying soliton dynamics. Bound-state solitons, as a significant soliton dynamic phenomenon, attract widespread attention and research interest because of their potential applications in high-speed optical communication, all-optical information storage, quantum computing, optical switching, and high-resolution spectroscopy. We investigate the effects of pump power variations on the formati[...]
Our summary: Study of soliton dynamics in femtosecond fiber lasers with Cr2S3 saturable absorbers, investigation of pump power effects on soliton formation, optimization of cavity structure for mode-locked solitons
soliton, mode-locked, bound states, Erbium-doped fiber lasers
Publication
Film, mid infrared detection system, methods of forming and operating the same
Patent published on the 2025-02-13 in WO under Ref WO2025034172 by NATIONAL UNIV OF SINGAPORE [SG] (Wang Chongwu [sg], Liang Liangliang [sg], Liu Xiaogang [sg], Wang Qijie [sg])
Abstract: Various embodiments may relate to a film. The film may include one or more types of nanostructures. The film may also include one or more types of ligands bonded to the one or more types of nanostructures. The one or more types of nanostructures may include neodymium (Nd) and ytterbium (Yb). A ratio of a molar concentration of neodymium (Nd) to a molar concentration of ytterbium (Yb) may be more than 1: 1.[...]
Our summary: Film with nanostructures and ligands for mid infrared detection system, including neodymium and ytterbium in specific molar concentrations.
film, mid infrared detection system, nanostructures, ligands
Patent
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