Rare-earth Sentence Examples
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The mantle in an Aladdin lamp is made from a unique mixture of rare earth oxides.
Cleve proposed to divide the " rare earth " metals into two groups, (1) " perfectly characterized "; (2) " not yet thoroughly characterized."
In the separation of the constituents of the complex mixture of oxides obtained from the " rare earth " minerals, the methods generally forced upon chemists are those of fractional precipitation or crystallization; the striking resemblances of the compounds of these elements rarely admitting of a complete separation by simple precipitation and filtration.
These crude earths, yttria and ceria, have supplied most if not all of the " rare earth " metals.
It combines directly with lithium, calcium and magnesium when heated, whilst nitrides of the rare earth metals are also produced when their oxides are mixed with magnesium and heated in a current of nitrogen (C. Matignon, Comptes rendus, 1900, 131, p. 837).
The first of the rare earth minerals was discovered in 1794 by Gadolin and was named gadolinite from its discoverer.
The rare earth metals are found in the minerals gadolinite, samarskite, fergusonite, euxenite and cerite.
However, due to their high cost they did not gain widespread use and the rare-earth magnets superseded them.
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This license hosts at least eight gold prospects and copper molybdenum gold porphyry with recently discovered platinum group element potential and rare earth deposits.
In figure 5 calcium titanate has been doped with aluminum and the rare earth (RE) has been varied.
Titanium's natural color is a medium gray or grayish white hue, but by creating an alloy with various rare earth metals, that color can be deepened to a charcoal or ebony shade.