Element 21 claims that their use of scandium improves performance compared with that of other commonly used metals.
en.wikipedia.org Many metals form trifluorides, such as iron, the rare earth elements, and the metals in the aluminium and scandium columns of the periodic table.
en.wikipedia.org Hydrogen acts as a hardening agent, preventing dislocations in the scandium atom crystal lattice from sliding past one another.
en.wikipedia.org The spectrum displays at least double the normal abundances of elements like magnesium, aluminum and silicon, while helium and scandium are under-abundant.
en.wikipedia.org However, with the discovery of the predicted elements, notably gallium in 1875, scandium in 1879, and germanium in 1886, it began to win wide acceptance.
en.wikipedia.org