铽(Tb)
In 1843, Karl G. Mosander of Sweden discovered Terbium through the study of bauxite. Most of the applications of 铽 involve high-tech fields, are technology-intensive, knowledge-intensive and cutting-edge projects, and are projects with significant economic benefits, which have attractive development prospects.
The main application areas are:
(1) Phosphors are used as activators for green powder in trichromatic phosphors, such as strontium activated phosphate matrix, hydrazine activated silicate matrix, hydrazine activated strontium magnesium aluminate matrix, under excitation conditions. Give a green light.
(2) Magneto-optical storage materials. In recent years, lanthanide magneto-optical materials have reached the scale of mass production. Magneto-optical discs developed with Tb-Fe amorphous films are used as computer storage components, and the storage capacity is improved by 10 to 15 times.
(3) Magneto-optical glass, ytterbium-containing Faraday rotatory glass is a key material for the manufacture of rotators, isolators and circulators that are widely used in laser technology. In particular, the development of the ferrocene magnetostrictive alloy (TerFenol) has opened up new uses for bismuth. Terfenol is a new material discovered in the 1970s. Half of the alloy is strontium and barium, sometimes added to strontium. The rest is iron, which was first developed by the Arms Laboratory in Iowa, USA. When Terfenol is placed in a magnetic field, its dimensional change is larger than that of a typical magnetic material. This change allows some precision mechanical motion to be achieved. . NdFe began to be used primarily in sonar and is now used in a wide variety of applications, from fuel injection systems, liquid valve control, micro-positioning to mechanical actuators, mechanisms and aircraft wing telescope adjustment wing regulators.
Concerned about surprises
Label: Rare earth elements
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