You searched for: “rare earth alloy”
Any metal alloy containing appreciable amounts of one or more rare-earth elements; for example, mischmetal.
Mischmetal is an alloy consisting of a crude mixture of cerium, lanthanum, and other rare-earth metals obtained by electrolysis of the mixed chlorides of the metals dissolved in fused sodium chloride.
They are used in making aluminum alloys, in some steels and irons, and in coating the cathodes of glow-type voltage regulator tubes.
This entry is located in the following unit: rar-, rare- + (page 1)