Compounds containing rare earths have diverse applications in electrical and electronic components, lasers, glass, magnetic materials, and industrial processes. Despite their name, rare-earth elements are relatively plentiful in …
Rare earth ions such as Eu3+, Tb3+, Dy3+, Sm3+, Pr3+, Nd3+, Er3+, Ho3+ have lifetime in the range of 100 microseconds to 30 milliseconds because of their forbidden f-f transitions. However, ions ...
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The light rare earth segment is estimated to account for the largest share of the global rare earth recycling market. Rare earth recycling market is further segmented by application: alloys, catalysts, ceramics, glass, permanent magnets, phosphors, others. The permanent magnets segment held the largest revenue share in 2021.
Abstract. Herein, we describe a first-of-a-kind study where lead tellurite (Pb-Te-O), iron phosphate (Fe-P-O), and lanthanide aluminoborosilicate (LABS) waste forms are evaluated for treating and/or immobilizing waste streams containing high rare-earth (RE) content, e.g., RECl 3, REOCl, and/or REO x.Results from this study show that NdOCl can be immobilized in …
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The rare-earth oxides develop a stabilizing action on the original colour and allow at the same time a high transparency to be main- tained also under the most severe radiation. There- fore, a wide use of such special glasses for TV- colour tubes and windows for the nuclear industry has been made.
At the time, the only way to achieve glass that provided a very high refractive index and a high Abbe number was to incorporate a "rare earth," thorium oxide or lanthanum oxide, into the glass itself. Both materials emit radiation that can be measured with a Geiger counter, but thorium is significantly more radioactive than lanthanum ...
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Other important uses of rare earth elements are in the production of special metal alloys, glass, and high-performance electronics. Alloys of neodymium (Nd) and samarium (Sm) can be used to create strong magnets that withstand high temperatures, making them ideal for a wide variety of mission critical electronics and defense applications.
Glass ceramics such as Zerodur® – an aluminosilicate glass with 50-nm β-quartz crystals and with 70% of crystalline phase – has almost zero thermal expansion (0 ± 0.02 × 10 –6 K –1) in the temperature range of 0–100 °C and ∼ 90% transmittance between 0.6 and 2.0 μm …
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Ytterbium Nitrate Hydrate Yb (NO3)3 5H2O CAS 3 For Laser Glass. Name: Ytterbium nitrate, Ytterbium nitrate hydrate Molecular formula: Yb (NO3)3·5H2O. CAS: 3 Molecular weight: 449.13. Description: Ytterbium nitrate pentahydrate is a colorless and transparent columnar crystal, which has hygroscopicity and is soluble in water.
Porous glass was impregnated with rare-earth and transition-metal ions and consequently sintered at 1100 deg. C into a compact nonporous glass. Reduction sintering is indispensable for obtaining fluorescence glass with high emission yield. Sintering of glass impregnated with Eu ions in a reducing atmosphere enhances the emission intensity by ...
Rare Earth Elements in Glass Production. In the field of glass production, rare earth oxides have long been studied. More specifically, how the properties of the glass may change with the addition of these compounds. A …
rare earth glass： 1. After a year of further development, the rare earth glasses were introduced to great acclaim at the Spring 1929 trade show in Leipzig. 2. The Alexandrit and Heliolit names were registered as trademarks in June 1929 . The earlier date of 1925 sometimes given for rare earth glass refers to an award for glass design, not glass composition. …
"rare earth glass" "rare earth" ; ; ; "rare-earth" ； "chinese society of rare earth" "chlorine rare earth" "heavy rare earth"
Rare earth activated glasses and glass–ceramics can be used as scintillators for high-energy physics, X-ray computed tomography and radiation monitoring . Ceramic and glass scintillators can be made in various shapes and sizes if correctly cooled after glass casting. Cost advantages over single crystals appear when large detectors are necessary.
PDF | Sodium aluminium phosphate (NAP) glass is a potential candidate for the immobilization of minor actinides (MA). The composition of the NAP glass... | Find, read and cite all …
Rare earth oxides have been studied for a long time in the field of glass production, specifically how the addition of these compounds may …
High quality example sentences with "rare-earth glass" in context from reliable sources - Ludwig is the linguistic search engine that helps you to write better in English ... For example, if boric oxide is present, X-rays are transmitted and rare-earth glasses will exhibit low dispersion and a high refractive index. 1. Encyclopedia ...
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08. Rare-Earth photoluminescence in sol-gel derived confined glass structures for photonics. Creator . Almeida, Rui M. Type . mixed material. Date Issued . . Year . 2005. Language . eng. Topical Subject(s) Materials science Glass
What is the meaning of rare-earth glass in Chinese and how to say rare-earth glass in Chinese? rare-earth glass Chinese meaning, rare-earth glass,rare-earth glass,rare-earth glass,translation, pronunciation, synonyms and …
Materials Chemistry and Physics, 31 (1992) 45^49 45 Rare earths in glass technology B. Locardi, E. Guadagnino Stazione Sperimentale del Vetro, Murano-Venice, (Italy) Abstract New types of glasses with active functions have been recently developed, in contrast with the conventional passive role of glass when it is used as a container or as a simple …
A total of only 550 bodies were ever made so any Leica KE-7A is a rare indeed. The standard KE-7A outfit included the rare 50mm f/2 Elcan (which stands for E. Leitz, Canada) lens, a unique formula consisting of 4 non-cemented, air-spaced elements designed to withstand the rigors of extreme weather and service in active combat zones.
Rare Earth Elements in Glass Production. In the field of glass production, rare earth oxides have long been studied. More specifically, how the properties of the glass may change with the addition of these compounds. A German scientist named Drossbach began this work in the 1800s when he patented and manufactured a mixture of rare earth oxides ...
This article focuses on glasses containing rare-earth elements, doped fibers, as well as their photonic functions such as optical amplifications in fiber …
The presence of residual OH species in the glass host increases the non-radiative decay rates, because of coupling between the RE states and the high energy stretching vibrations of the OH groups (∼3200 cm –1).This contribution to non-radiative decay is very important in the case of the Er 3+ ion, since two OH phonons are sufficient to bridge the energy gap between …
The U.S. Department of Energy's Office of Scientific and Technical Information
Rare earth (RE) ions in a silicate glass matrix are an ideal material for the fabrication of encoded beads. REs are a spectroscopically rich ( 8) species (Fig. 1 ), a property that facilitates their use as optical codes in a spectral window distinct from fluorescent dyes used for labeling biological samples.
Rare Earth Glass Polishing Powder For Mirror / Furniture Gona is a manufacture of high-performance cerium oxide and rare earth oxide materials designed to deliver excellent polishing performance for many various glass …
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