Overview of rare earth metals and intermediate alloys

TAMARAC, Fla. - May 6, 2022 - PRLog -- The vast majority of single rare earth (https://www.edgetechree.com/) metals (https://www.edgetechree.com/) and their intermediate alloys are used to produce new rare earth metal materials such as neodymium iron boron, samarium cobalt permanent magnet, and super magnetostriction, and non-ferrous metal alloys such as AI-RE, Mg-RE, Cu-RE, Zn- RE, W-RE, Mo-RE, etc. In addition, there are a few rare earth metal applications that use some special properties to prepare functional materials.

Neodymium metal, praseodymium and praseodymium neodymium alloy

Neodymium has the hard-magnetic properties caused by the good 4f electron spin arrangement and has become the largest user of neodymium iron boron permanent magnet materials.
Dysprosium and terbium

Metal dysprosium and dysprosium iron alloys and metal terbium and terbium iron alloys are used as modifying additives for high-performance NdFeB permanent magnet materials. Adding 2% to 5% of metal dysprosium and lower amounts of metal terbium in the NdFeB magnet can significantly improve the coercivity and service temperature of NdFeB permanent magnet materials.
Samarium Metal

Samarium metal has excellent hard magnetic properties and is used as the main raw material for the preparation of SmCo5, Sm2Co17, Sm2Fe17Nx permanent magnet materials. The samarium thermal neutron trap has a large cross-section, reaching 650 MPa, and the metal samarium is made into rods for controlling the number of thermal neutrons in the nuclear reactor.

Metal lanthanum

The metal lanthanum is active and used as a metal reducing agent. The thermal reduction process is used to reduce other rare earth metals. Lanthanum is also used as a purifying agent and modifier for non-ferrous alloys. It is usually used in the form of a lanthanum intermediate alloy. Lanthanum metal is used to make LaN5i alloy.

Metal yttrium (https://www.edgetechree.com/rare-earth-metals/yttrium-metal/), cerium, scandium and gadolinium
Rare earth metals (https://www.edgetechree.com/)

Metal yttrium and cerium are excellent scavengers and modification additives for nonferrous metals such as magnesium, aluminum, and titanium. Yttrium-magnesium alloy has good high-temperature mechanical properties and excellent high-temperature oxidation resistance and is used as a lightweight structural material in aviation and aerospace.