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An Overview on Rare Earth Materials

Due to its unique physical and chemical properties, rare earth is widely used in the production of fluorescent materials, rare earth metal hydride battery materials, electric light source materials, permanent magnetic materials, hydrogen storage materials, catalytic materials, precision ceramic materials, laser materials, superconducting materials, magnetostrictive materials, magnetically cooled materials, magneto-optical storage materials, optical fiber materials, etc.

China, Russia, the United States, Australia and India are among the world’s major rare earth deposit countries. The world's most important rare earth minerals are bastnaesite, monazite and ion-adsorbed rare earth mines.

According to the definition of rare earth elements by the International Federation of Pure and Applied Chemistry, rare earth elements are the 15 lanthanides of atomic numbers from 57 to 71 in the third subgroup of the Mendeleev periodic table, namely lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium, in addition to scandium and yttrium that have similar electronic structure and chemical properties.

According to the difference in physical and chemical properties of rare earth elements and the different separation technique, rare earth elements can be divided into light group and heavy group. With gadolinium as the boundary, the first seven elements are called light rare earth elements. Gadolinium and its subsequent elements are called heavy rare earth elements. Although the atomic weight of yttrium is only 89, the chemical property of it is much closer to that of heavy rare earth element because its ion radius is in the ion radius chain of other heavy rare earth elements.

As a material supplier with more than 20 years of experience, SAM can provide our customers with all the rare earth metals (except for radioactive promethium) and their compounds with excellent quality and competitive prices. Among them, rare earth oxides have multiple inventories. They can be quickly delivered to customers after order confirmation. Inquiry is welcome!

rare earth metallurgical

Application of rare earth:metallurgical

rare earth non-metallurgical

Applications of rare earth: non-metallurgical

Keywords: fluorescent materials,precision ceramic materials,rare earth,lanthanum,cerium

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