Rare earth intermetallic compounds

TAMARAC, Fla. - Jan. 21, 2022 - PRLog -- Rare-earth intermetallic compounds are metal compound phases formed between rare-earth metals and other metals or similar metals. They mainly use the special physical and chemical properties of rare-earth intermetallic compounds to prepare new rare earths for various purposes using various processing and manufacturing techniques. Functional Materials. At present, there are the following rare earth metal (https://www.edgetechree.com/) intermediate compounds with large market demand and industrialization and large-scale production:

(1) SmCo5, Sm2Co7, Nd2Fe14B and Sm2Fe17Nx etc.

Inter-rare earth compounds are rare earth permanent magnet materials with excellent magnetic properties and can be divided into sintered permanent magnets and bonded permanent magnets. Samarium-cobalt permanent magnetic materials have good high-temperature stability and anti-corrosion performance, and the devices mainly used for making traveling waves and circulators have obtained important applications in military and aerospace fields. Samarium iron-nitrogen bonded magnets have a lower rare earth content than neodymium-iron-boron magnets.
NdFeB is widely used, including high-tech fields, traditional and general civilian low-end magnets. NdFeB magnets (http://www.edgemagnets.com/) are mainly used in high-tech fields such as electronics, computers, and medical treatment.
2) RENi5 hydrogen storage alloy. AB5 type MM-Ni-Co-Al-Mn mixed rare earth multi-element alloy, the mixed rare earth content in the alloy accounts for about 34%. Hydrogen storage alloy is used as a negative electrode material in nickel-metal hydride batteries. It has the characteristics of high energy density, long life, no memory effect, excellent large current discharge characteristics and fast charging. It is widely used, mainly used as portable household appliances, digital cameras, notebooks
(3) TbDyFe giant magnetostrictive material. Compared with traditional magnetostrictive materials, rare earth giant magnetostrictive materials have the characteristics of large magnetostriction coefficient, large stress, low voltage current drive, small hysteresis, fast response and large magnetomechanical coupling coefficient. Rare earth giant magnetostrictive materials can be applied in a wide range of fields.
(4) TbFeCo rare earth-iron group metal amorphous thin film magneto-optical material The rare earth iron amorphous film has the characteristics required for magneto-optical disk storage, that is, the magnetization direction is perpendicular to the film surface, the magnetic domain is stable, the coercive force at room temperature is large, the Curie temperature must be within 100-200 ℃ and the magneto-optic Kerr rotation angle Or the Faraday rotation angle must be large.