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16 sty 2023 · The rare earths are the lanthanides — lutetium and all 14 elements between lanthanum and ytterbium across one row of the periodic table — plus scandium and yttrium, which tend to occur in the...
5 sty 2024 · China has dominated the market for rare earth elements, but US scientists and companies are scrambling to catch up.
Today, the rare-earth elements are classified as light or heavy rare-earth elements, rather than in cerium and yttrium groups.
They show how today's geographical concentration evolves over time, for both mining and refining and how expected supply compares with primary supply requirements in climate-driven scenarios.
7 gru 2023 · As much as 90 percent of processed rare-earth elements come from China, a supply-chain dependence that spooks Western executives and, especially, defense officials.
22 maj 2024 · Scientists have uncovered the properties of a rare earth element that was first discovered 80 years ago at the very same laboratory, opening a new pathway for the exploration of elements...
1 lip 2019 · Rare-earth elements (hereinafter referred to as REE) are a group of seventeen chemical elements in the periodic table, in particular the fifteen lanthanides as well as yttrium and scandium as defined by the International Union of Pure and Applied Chemistry (IUPAC).
