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Recycling rhenium from spent alloys and catalysts is a multi-step process combining pyrometallurgical and hydrometallurgical techniques, where its separation …
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Naturally occurring rhenium is a mixture of two isotopes: 185 Re (natural abundance: 37.07%) and the 187 Re (natural abundance: 62.93%). 3 Although representing the main constituent in natural rhenium sources, 187 Re is weakly radioactive with a β −-emission with the very long half-life of 5 × 10 10 yr. 4 The 187 Re/ 187 Os isotope …
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Rhenium Tungsten Alloy Use in X ray Anode Tube. Molybdenum- Rhenium alloys are superconductive at 10 K (-263.15 o C). Tungsten-Rhenium alloy are used to make Thermocouples for measuring …
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Rhenium is a paramagnetic metal and its molar magnetic susceptibility χ m (SI) = 8.42 × 10 −4 cm 3 mol −1 . The variations of main optical properties of polycrystalline rhenium with wavelength λ are following : index of refraction—from 0.4 (λ = …
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Originality/value This research can help the EB-PVD process for rapid manufacturing which has been considered as financially expensive to be accepted in real practice by providing a relationship of the process-to-product transformation through the developed motion planning methods.",
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Recent measurements revealed remarkable signatures of spontaneous magnetism coexisting with superconductivity in elemental rhenium. Thus, pure rhenium …
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The new complex indium rhenium and scandium rhenium oxides, In 6 ReO 12 and Sc 6 ReO 12, have been synthesized as single phases in sealed silica tubes and by high-pressure high-temperature syntheses, and their crystal structures have been determined by single crystal X-ray diffraction.The compounds crystallize in a …
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Rhenium is commonly used as a catalyst in various chemical processes, such as in the production of high-octane gasoline. After the catalyst has been used, the rhenium can be extracted and recycled for further use. The extraction process involves dissolving the spent catalyst in a suitable solvent and then precipitating the rhenium as a pure ...
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Rhenium is also used in the petroleum industry to make lead-free gasoline. In this application, rhenium compounds act as catalysts. (A catalyst is a chemical compound that takes part in a chemical reaction, and can often …
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Practical implications: Newly created nanocomposite materials, developed as a response to the market demand, are interesting, state-of-the-art materials dedicated to various …
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However, it is challenging to induce and modulate magnetism in non-magnetic (NM) materials such as rhenium disulfide (ReS2). Theoretical research shows …
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Here we report the effect of pressure on two such mononuclear rhenium (IV) compounds that exhibit long-range magnetic order under ambient conditions via a spin …
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A rare earth metal, rhenium (pronounced as REE-nee-em) belongs to the family of transition metals denoted by the chemical symbol Re [1]. It has 33 isotopes with known half-lives, their mass numbers ranging from 160 to 192. Naturally occurring rhenium is a mixture of a stable isotope, Rhenium-185 and a radioactive isotope, Rhenium-187 [2, 9]. It ...
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The strong magnetic field of MRI equipment can put tremendous stress on magnetic materials. Therefore, the implant alloy must be a non-magnetic material in order to eliminate the torque, displacement or heat generated during MRI imaging. The molybdenum rhenium alloy is completely non-magnetic, so there is no problem in this respect.
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New heteroleptic rhenium(I) compounds, [fac-Re(I)(CO)3(L)] (e.g., L= tfb-dmpda, (N,N-(4,4,4-trifluorobut-1-en-3-on)-dimethyl propylene diamine)), containing anionic and neutral ligands act as efficient …
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Ultraflat magnets: Atom-thick alloys with unanticipated magnetic properties Date: October 11, 2017 Source: Rice University Summary: Adding rhenium to a two-dimensional alloy induced a structural ...
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Yan et al. [499] prepared magnetic dextran-mitomycin drug conjugate and studied its in vivo antitumor activity Cao et al. [509] prepared surface-modified magnetic nanoparticles with rhenium-188 ...
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The Electrochemical Society was founded in 1902 to advance the theory and practice at the forefront of electrochemical and solid state science and technology, and allied subjects. ... influence of the magnetic field applying on the electrodeposition of alloys under investigation is observed for rhenium ones, that is, there is a decrease in the ...
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Therefore, the mandrel‐based approach can be limited to producing hollow components., – The proposed method is very generic and thus can be applied for multi‐material manufacturing process identifying the sweet spot of the intersecting vapor plumes., – This research can help the EB‐PVD process for rapid manufacturing which …
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While Fe adopts an hcp structure in Fe/Re multilayers [1], we carried out a study of magnetic properties of the bulk Fe in this structure. Fig. 2 shows the Fe total energy variation in FM, antiferromagnetic (AFM) and NM configurations for an ideal c/a ratio. The NM phase is the ground state with an equilibrium lattice parameter of a Fe …
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We present ab initio calculation of the electronic structure and magnetic properties of Fe/Re multilayers assuming hexagonal closed-packed (hcp) …
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The synthetic approaches to high-valent rhenium alkoxide complexes include the metathesis of rhenium oxide tetrachloride, (mathop {text{R}}limits^{ + 6} …
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Rhenium was the last stable, naturally occurring element discovered. Although its existence was predicted in 1871—Russian chemist Dmitri Mendeleev noted two vacant slots below manganese on the periodic table of elements—rhenium was not isolated until 1925, when German chemists Walker Noddack, Ida Tacke, and Otto Berg …
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Rhenium may not be an element that is commonly discussed, but its unique physical and chemical properties make it indispensable in several high-tech applications. Its resistance to heat and wear makes it crucial for the aerospace and energy sectors. Although it's one of the rarest elements, the critical role it plays in modern technology cannot ...
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Selective magnetic GMA based potential sorbents for molybdenum and rhenium sorption. ... Rhenium (Re) as a rare metal with high melting point, superior high-temperature strength and room-temperature ductility is an excellent choice for many applications demanding high-temperature, corrosion and wear resistance [3], [4]. ... In …
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Background: The accurate diagnosis of bacterial infections remains a critical challenge in clinical practice. Traditional imaging modalities like computed tomography (CT) and magnetic resonance ...
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1.. IntroductionCompounds of the general formula Ln 3 MO 7 have attracted great interests, because of their one-dimensional structural features and possible related magnetic properties. The parent structure of this family of compounds, La 3 NbO 7, was first determined by Rossell [1].The structure is an orthorhombic superstructure of the …
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Single-molecule magnets (SMMs) are promising building blocks for the development of high-density magnetic memories, molecular spintronics, and quantum computing devices. 1–3 Organic molecules with 3d transition metal (TM) cores, such as transition metal-Phthalocyanine (TMPc), are prototypes in this context and have …
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Re 4f core level spectrum obtained for the coatings allowed the formation of rhenium nitride and rhenium oxides for all conditions tested in the process deposition to be validated (Fig. 8). The binding energy variations (∆BE) for the samples deposited were 0.33 eV for Re, 0.65 eV for ReN x, and 0.4 eV for ReO 2 .
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ARTICLE IN PRESS Journal of Magnetism and Magnetic Materials 277 (2004) 165–174 Preparation and radiolabeling of surface-modified magnetic nanoparticles with rhenium-188 for magnetic targeted radiotherapy Jinquan Caoa,*, Yongxian Wanga,1, Junfeng Yua, Jiaoyun Xiaa, Chunfu Zhanga, Duanzhi Yina, Urs O. H.afelib a Shanghai Institute of …
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