The word "yttrium" is correct and usable in written English
It is typically used in scientific contexts, particularly in chemistry and materials science, to refer to the chemical element with the symbol Y and atomic number 39.
Example: "Yttrium is often used in the production of phosphors for color television tubes."
Alternatives: "Y" or "Yttrium metal."
Five rare-earth metals (dysprosium, neodymium, terbium, europium and yttrium), for example, possess unique magnetic, catalytic and luminescent properties that make wind turbines, solar panels, electric vehicles and efficient lighting possible.
When light from a standard semiconductor laser is injected into the chamber it bounces off the walls (ie, the boundary between the neodymium and the yttrium vanadate).
They have discovered, by good old trial and error, that replacing some of the yttrium atoms at grain boundaries with calcium atoms increases the current flow from grain to grain.
By using such exotic materials as yttrium orthosilicate crystals and praseodymium ions it trapped photons in bunches of as many as 500 at a time.
Over the summer prices for cerium (used in glass), lanthanum (petrol refining), yttrium (displays) and a bunch of other –iums have zoomed upward (see chart) as China, which accounts for almost all of the world's production, squeezes supply.
His other trick is to boost the output power of the lasing material, neodymium-doped yttrium aluminium garnet.
Then a coat is applied of yttrium, barium and copper, the metallic elements of YBCO, today's HTS recipe of choice, along with impurities just nanometres (billionths of a metre) across.
(The one that attracted attention in 1987 was an oxide of yttrium, barium and copper).
The phosphor a compound called yttrium-aluminium garnet absorbs part of the blue light and is thereby "pumped" into an excited state.
Some of the more important radionuclides are yttrium-90 (cancer therapy), cerium-144 and promethium-147 (industrial gauges and power sources), gadolinium-153 (industrial X-ray fluorescence), and ytterbium-169 (portable X-ray source).
By repeated beta decay, the barium-144 in turn is converted step by step to other fission products, lanthanum-144, cerium-144, praseodymium-144, and eventually relatively stable neodymium-144; and krypton-89 is similarly transformed to stable yttrium-89 by way of rubidium-89 and strontium-89.
