Interaction between rare earth metals and other elements

MIRAMAR, Fla. - June 8, 2020 - PRLog -- Rare earth metals are widely used as reducing agents, which can reduce oxides of iron, cobalt, nickel, chromium, vanadium, niobium, tantalum, zirconium, titanium, silicon and other elements into metals. Due to the difference in the reducing ability of rare earth metals, and the vapor pressure of the lanthanum is much smaller than that of Samarium, Europium, Ytterbium and Thulium, Lanthanum (cerium) can be used to reduce europium, europium, europium, europium metal from its oxides. However, the activity of rare earth metals is lower than that of alkali metals and alkaline earth metals, so lithium and calcium are commonly used as reducing agents to reduce rare earth metals from their halides.

The melting point and elastic modulus of Europium and Ytterbium are similar to those of light rare earth lanthanum and cerium. Moreover, many intermetallic compounds are formed in their binary and multicomponent alloys. Only two rare earth metals belonging to different subgroups (cerium and yttrium) can form intermetallic compounds.
The behavior of Yttrium (https://www.edgetechree.com/rare-earth-metals/yttrium-metal/) and scandium (https://www.edgetechree.com/rare-earth-metals/scandium-me...) in alloys is similar to that of heavy rare earth metals; the behavior of Ytterbium in magnesium alloys is similar to that of light rare earths.
Rare earth metals (https://www.edgetechree.com/rare-earth-metals/) and transition metals (iron, manganese, nickel, gold, silver, copper, zinc) and magnesium, aluminum, gallium, indium, thallium can form many alloys.

Only tantalum (https://www.edgetechmat.com/categories/tantalum/) / niobium (https://www.edgetechmat.com/categories/niobium/) and tungsten (https://www.edgetechmat.com/categories/tungsten/) / molybdenum (https://www.edgetechmat.com/categories/molybdenum/) and their alloys have little interaction with rare earth metals. Tantalum and molybdenum have almost no interaction with rare earth metals and their halides. Under vacuum or inert gas, tantalum can be used at 1700 °C, molybdenum can be used at 1400 °C, and it is used as the electrode for molten salt electrolysis and the carrying crucible for rare earth metals and rare earth alloys.