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rare-earth element |
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rare-earth element [′rer ‚ərth ′el·ə·mənt] (chemistry) The name given to any of the group of chemical elements with atomic numbers 58 to 71; the name is a misnomer since they are neither rare nor earths; examples are cerium, erbium, and gadolinium. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Out of these rare-earth elements, Dy and Tb are used in magnets, phosphors and magneto-optical memories. Joseph Poon, and Vijayabarathi Ponnambalam reported breaking the 1 cm-thickness barrier with an iron based glassy alloy including chromium, molybdenum, carbon, boron, and traces of the rare-earth element erbium. Buckley, Rare-earth element determination in minerals by electron-probe microanalysis: application of spectrum synthesis, Mineral. |
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