é•(Dy) In 1886, the Frenchman Pois Baudley succeeded in separating the cockroach into two elements, one still called é’¬, and the other named dysprosium according to the meaning of “hard to get†from é’¬.é• is currently playing an increasingly important role in many high-tech fields. The main uses of cockroaches are: (1) As an additive for NdFeB permanent magnets, adding about 2 to 3% of lanthanum to such a magnet increases the coercive force. In the past, the demand for bismuth was not large, but with the NdFeB magnet. As demand increases, it becomes a necessary addition element, the grade must be around 95 to 99.9%, and demand is rapidly increasing. (2) é• is used as a phosphor activator. Trivalent cerium is a promising active ion of a single luminescent center trichromatic luminescent material. It is mainly composed of two emission bands, one for yellow emission and the other for blue light. The emitted, erbium-doped luminescent material can be used as a trichromatic phosphor. (3) Niobium is an essential metal material for the preparation of a large magnetostrictive alloy, Terfenol alloy, which enables the precise movement of some mechanical movements. (4) Base metal can be used as a magneto-optical storage material with high recording speed and reading sensitivity. (5) For the preparation of xenon lamps, the working substance used in xenon lamps is cesium iodide. This lamp has the advantages of high brightness, good color, high color temperature, small volume, stable arc, etc. It has been used in film and printing. And other lighting sources. (6) Because the cerium element has a large neutron capture cross-sectional area, it is used in the atomic energy industry to determine the neutron energy spectrum or to make a neutron absorber. (7) Dy3Al5O12 can also be used as a magnetic working substance for magnetic refrigeration. With the development of science and technology, the application fields of é• will continue to expand and extend. Concerned about surprises Label: Rare earth elements Previous: Characteristics of rare earth and rare metal ore resources Next: (é“•(Eu)) Origin and use of rare earth element names Entrance Cabinet,Entrance Storage Cabinet,Shoe Cabinet At Entrance,Front Entrance Cabinet Ningbo Oulin Import&Export Co.,Ltd. , https://www.oulin-oversea.com
(é•(Dy)) Origin and use of rare earth element names