Solvent extraction and separation of cerium (III) and samarium …

The solvent extraction of cerium(III) and samarium(III) from mixed solutions of all rare earth elements (REEs) except promethium using PC88A (2-ethyl hexyl phosphonic acid mono-2-ethyl hexyl ester), an acidic extractant, was investigated. The effects of aqueous equilibrium pH, various acids (sulfuric acid (H2 SO4), hydrochloric acid (HCl) and nitric …

Samarium | SpringerLink

As an intermediate rare-earth element, the comparison of samarium concentrations to that of the larger and highly incompatible light rare-earth element lanthanum (La) through the La/Sm ratio is a useful proxy for the fractionation of rare-earth element patterns, where La/Sm ratios lower than chondrite meteorites are a clear …

Rare Earth Metals Metallurgy | SpringerLink

Rare earth metals metallurgy is the technology that extracts rare earth metals and their compounds from rare earth ore. Rare earth is a generic term for the 17 elements in the scandium, yttrium, and lanthanum series in the III b family of the periodic table and is usually expressed as RE or REE. These elements are scandium (Sc), …

How rare earth elements make modern …

How rare earth elements' hidden properties make modern technology possible. These 17 metals fine-tune light and generate powerful magnetic fields. In August, China finished constructing a maglev ...

Samarium Facts

Updated on September 02, 2021. Samarium or Sm is a rare earth element or lanthanide with atomic number 62. Like other elements in the group, it is a shiny metal under …

Samarium: Uses, Properties, and Applications in Industry

Samarium is a chemical element with the atomic number 62 and symbol "Sm" on the periodic table. It belongs to the lanthanide series and is classified as a rare-earth metal. Samarium has a range of uses, including its role in electronics, as a catalyst in chemical reactions, and in cancer treatments. This element is a hard, silvery-white metal ...

Samarium Cobalt Magnets | Rare Earth SmCo Magnets

Samarium Cobalt (SmCo) magnets are high-performance permanent magnets with exceptional magnetic properties. They offer excellent temperature stability and a high resistance to corrosion or demagnetization. Part of the rare-earth magnet family, SmCo magnets are ideal for technical and industrial applications involving high or very low ...

Samarium (Sm) Element: Properties, Uses, Reactions, Effects

July 9, 2023 by Jyoti Bashyal. Samarium is a chemical element with an atomic number 62 and is represented by the symbol 'Sm' in the periodic table. It is soft and silvery-white in appearance classified as rare earth metal and belongs to the f-block of the lanthanide group of the periodic table. Samarium generally has an oxidation state of +3.

Rare-Earth Uncertainty | Air & Space Forces Magazine

Rare-Earth Uncertainty. By Peter Grier. Dec. 21, 2017. A Chinese rare-earth mine in inner Mongolia. Google Earth. Their names sound as if they are part of some science fiction universe: yttrium, dysprosium, samarium, neodymium. They are rare-earth elements (REEs)—little-known but crucial ingredients in much modern US military …

Rare Earth Magnets: The Difference Between Neodymium, Samarium Cobalt

Ceramic magnets are generally less expensive than rare earth magnets but they are not as strong with a typical BHmax of about 3.5 – about a tenth or less than that of either neodymium or samarium cobalt magnets. Regarding heat, ceramic magnets have a Tmax of 300 degrees Celsius and, like samarium magnets, a Tcurie of 460 degrees …

Raman spectral analysis of TiO2 thin films doped with rare-earth samarium

TiO(2) thin films doped with rare-earth samarium were prepared on a quartz plate by the sol-gel/spin-coating technique. The samples were annealed at 700 °C to 1100 °C, and the Raman spectra of the samples were obtained. Analyses of Raman spectra show that samarium doping can inhibit the anatase-ruti …

Metals | Free Full-Text | Influence of Rare Earth …

For the mixed rare earth additives with a total concentration of 200 mg/L, Figure 3d and Table 2 show that the capacitive arc radius and the protective film resistance R f gradually increase with the decreasing …

Samarium: Unveiling the Secrets of this Rare Earth Element

Samarium is a rare earth element that belongs to the lanthanide series. It has the atomic number 62 and the chemical symbol Sm. This element has a range of …

Samarium: Unveiling the Secrets of this Rare Earth Element

Samarium is a chemical element with the symbol Sm and atomic number 62. It belongs to the lanthanide series and is a rare earth metal. Samarium is named after the mineral samarskite, from which it was first isolated. It is a silvery-white metal that is relatively soft and malleable. Samarium has a variety of applications, including in the ...

Assessing samarium resource efficiency in China: A

Since samarium is usually extracted from rare earth ores as one byproduct, its supply is highly determined by the production quota of rare earth concentrate. The annual quota of rare earth mining remained stable in the past decade, and the annual average samarium supply was approximately 600 tons. Since about 20% of Sm …

A Rare-Earth Samarium Oxide Catalyst for Electrocatalytic …

A new rare-earth Sm2O3 electrocatalyst was explored for an electrochemical dinitrogen reduction reaction (NRR). Theoretical calculations reveal that the surface-exposed Sm atoms of Sm2O3 could effectively catalyze the NRR and restrict hydrogen evolution. Experimentally, we prepared Sm2O3 nanoparticles showing an NH3 yield of …

Structural, Optical, Magnetic, and Electrical Properties of Samarium …

Herein we report the effect of samarium (rare earth metal) doping on the morphological, structural, optical, magnetic, dielectric, and electrical properties of copper–iron oxide ferrite composites [CuFe2−xSmxO4 (x = 0, 0.05, 0.075, and 0.1)] (abbreviated as SCFO). The CuFe2−xSmxO4-based ferrites were synthesized by the …

REE

Rare earth elements are a group of seventeen chemical elements that occur together in the periodic table (see image). The group consists of yttrium and the 15 lanthanide elements …

Rare Earth Elements (Metals)

Samarium: Used in lasers, rare earth magnets, masers, nuclear reactor control rods Europium : Used to prepare red and blue phosphors, in lasers, in fluorescent lamps, and as an NMR relaxant Gadolinium : Used in lasers, x-ray tubes, computer memory, high refractive index glass, NMR relaxation, neutron capture, MRI contrast

U.S. Begins Forging Rare Earth Supply Chain

Sloustcher said the heavy rare earths will be refined in a different building, adding that the project is just getting started. To fully domesticate the magnet supply chain, MP Materials also began construction on the United States' first rare earth magnetics factory in April 2022. Located in Fort Worth, Texas, the facility will be able to ...

Rare Earths | Samarium | Rare Earth Magnets

Samarium cobalt magnets are a great choice when designing motors, generators or sensing systems. Unlike neodymium and even more importantly dysprosium which is used to give neodymium iron boron magnets higher temperature performance, there is an excess of samarium in the rare earth supply chain. We estimate that SmCo magnet usage …

(PDF) Trace amounts of rare earth elements in high purity samarium …

The values for the REEs were measured and are shown in Table 2. A recovery test was done by making measurement of four spiked rare earth standard solutions in the matrix, with 1, 5, 10 and 20 ng mL−1 . A samarium oxide aliquot was spiked with the standards. The samarium matrix was added to rare earth solution.

Inventing the world's strongest magnet

"Samarium–cobalt magnets would have been wonderful for automotive use, but they were too expensive." ... Croat knew he needed to produce it from a light rare-earth element, such as lanthanum ...

Rare Earth Elements: Where in the World Are …

The 17 rare earth elements are: lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), …

A Rare Earth Element Samarium Overview | Stanford …

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Videos of Rare Earth Samarium

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Rare earth magnet plant inaugurated

The plant will produce rare earth magnets like samarium-cobalt and neodymium-iron-boron. With this facility, India will join a select group of nations with capacity to produce rare earth permanent ...

Samarium | Rare Earth Element, Uses in Magnets & Alloys

samarium (Sm), chemical element, a rare-earth metal of the lanthanide series of the periodic table. Samarium is a moderately soft metal, silvery white in colour. …

Magnet Comparison: Neodymium and Samarium Cobalt Rare Earth …

Rare Earth Magnets are a key component of a four-pole motor in an electric vehicle. The location of the motor inside the vehicle's engine exposes the magnets to temperatures of over 180 °C. At this top temperature, the performance of Samarium Cobalt is slightly better than Neodymium. Technical article: Metal Recovery From Electric …

Rare Earth Elements | Department of Energy

Rare Earth Elements. Rare earth oxides of gadolinium, praseodymium, cerium, samarium, lanthanum, and neodymium. Photo courtesy of USDA ARS. Rare earth elements (REEs), which comprise of only 17 elements from the entire periodic table, play a critical role to our national security, energy independence, environmental future, and …

Ferrimagnetic coupling between cobalt and light rare-earth samarium

Ferrimagnetic coupling between cobalt and light rare-earth samarium induced by dense hydrogenation of SmCo 5 permanent magnet under high pressures Naoki Ishimatsu, Kentaro Ishimoto, Kouji Sakaki, Yumiko Nakamura, Naomi Kawamura, Saori I. Kawaguchi, Naohisa Hirao, and Satoshi Nakano Phys. Rev. Materials 7, 024401 – …

Effects of rare earth element samarium doped zinc oxide …

Rare Earth Elements (REEs) comprised 17 metallic elements, among which 15 elements are lanthanides with 57 and 71 atoms, in addition to two other elements Scandium and yttrium with 21 atoms and 39 atoms, respectively. ... Samarium doped ZnO NPs toxicity on M. galloprovincialis gonads is signaled for the first time.

Synthesis, characteristics, and antibacterial activity of a rare-earth

Ag and Sm ions WU Jiang et al., Synthesis, characteristics, and antibacterial activity of a rare-earth samarium/silver/titanium dioxide… 729 Fig. 1 Powder XRD analysis of TiO2, Ag/TiO2 and Sm/Ag/ TiO2 at 500 ºC for 100 min Fig. 2 Powder XRD analysis of different proportions of Sm/ Ag/TiO2 at 500 ºC for 100 min …

Samarium | XPS Periodic Table | Thermo Fisher Scientific

Very similar to praseodymium, samarium is one of the rare elements used to make carbon arc lights for use in the motion picture industry. Comprising about 1% of Misch metal, the element is also used to make flints for lighters. When combined with cobalt, the elements produce a powerful, permanent magnet with a high resistance to demagnetization.

What Are SmCo Magnets, and How are They Made?

These permanent magnets are made from two rare-earth elements – samarium and cobalt. It is important to note that when producing SmCo magnets, the cobalt portion can be replaced by transition metals, while the samarium portion can be replaced by cerium and gadolinium. SmCo magnets were invented by Alden Ray and Karl Strnat in the '70s.