[permalink] [id link]
Dysprosium is one of the components of Terfenol-D, along with iron and terbium.
from
Wikipedia
Some Related Sentences
Dysprosium and is
Dysprosium is never found in nature as a free element, though it is found in various minerals, such as xenotime.
Dysprosium is used for its high thermal neutron absorption cross-section in making control rods in nuclear reactors, for its high magnetic susceptibility in data storage applications, and as a component of Terfenol-D. Soluble dysprosium salts are mildly toxic, while the insoluble salts are considered non-toxic.
Dysprosium is quite electropositive and reacts slowly with cold water and quite quickly with hot water to form dysprosium hydroxide:
Dysprosium oxide, also known as dysprosia, is a white powder that is highly magnetic, more so than iron oxide.
Dysprosium is never encountered as a free element, but is found in many minerals, including xenotime, fergusonite, gadolinite, euxenite, polycrase, blomstrandine, monazite and bastnäsite ; often with erbium and holmium or other rare earth elements.
Dysprosium is used, in conjunction with vanadium and other elements, in making laser materials and commercial lighting.
Dysprosium nitrate, Dy ( NO < sub > 3 </ sub >)< sub > 3 </ sub >, is a strong oxidizing agent and will readily ignite upon contact with organic substances.
Dysprosium titanate is a new material currently undergoing evaluation for pressurized water control rods.
Dysprosium titanate is a promising replacement for Ag-In-Cd alloys because it has a much higher melting point, does not tend to react with cladding materials, is easy to produce, does not produce radioactive waste, does not swell, and does not outgas.
Dysprosium is usually the most abundant of the even numbered heavies, and holmium is the most abundant of the odd numbered heavies.
Dysprosium and with
Dysprosium combines with various non-metals at high temperatures to form binary compounds with varying composition and oxidation states + 3 and sometimes + 2, such as DyN, DyP, DyH < sub > 2 </ sub > and DyH < sub > 3 </ sub >; DyS, DyS < sub > 2 </ sub >, Dy < sub > 2 </ sub > S < sub > 3 </ sub > and Dy < sub > 5 </ sub > S < sub > 7 </ sub >; DyB < sub > 2 </ sub >, DyB < sub > 4 </ sub >, DyB < sub > 6 </ sub > and DyB < sub > 12 </ sub >, as well as Dy < sub > 3 </ sub > C and Dy < sub > 2 </ sub > C < sub > 3 </ sub >.
About 100 tonnes of dysprosium are produced worldwide each year, with 99 % of that total produced in China Dysprosium prices have climbed nearly twentyfold, from $ 7 per pound in 2003, to $ 130 a pound in late 2010.
Dysprosium chloride fires, however, can be extinguished with water, while dysprosium fluoride and dysprosium oxide are non-flammable.
Dysprosium and .
Dysprosium was first identified in 1886 by Paul Émile Lecoq de Boisbaudran, but was not isolated in pure form until the development of ion exchange techniques in the 1950s.
Dysprosium and holmium have the highest magnetic strengths of the elements, especially at low temperatures.
Dysprosium halides, such as DyF < sub > 3 </ sub > and DyBr < sub > 3 </ sub >, tend to take on a yellow color.
Dysprosium carbonate, Dy < sub > 2 </ sub >( CO < sub > 3 </ sub >)< sub > 3 </ sub >, and dysprosium sulfate, Dy < sub > 2 </ sub >( SO < sub > 4 </ sub >)< sub > 3 </ sub >, result from similar reactions.
Dysprosium can then be separated from other rare earth metals by an ion exchange displacement process.
is and one
But there's one thing I never seen or heard of, one thing I just don't think there is, and that's a sportin' way o' killin' a man ''!!
I seized the rack and made a western-style flying-mount just in time, one of my knees mercifully landing on my duffel bag -- and merely wrecking my camera, I was to discover later -- my other knee landing on the slivery truck floor boards and -- but this is no medical report.
The true artist is like one of those scientists who, from a single bone can reconstruct an animal's entire body.
It took thirty of our women almost six moons to build this one, which is higher and stronger than the old one.
I clapped the big man with the bleached hair on his shoulder and said heartily, hoping it would make an impression on the women: `` This one is the maku Frayne.
My definition of this much abused adjective is that a reconstructed rebel is one who is glad that the North won the War.
The general acceptance of the idea of governmental ( i.e., societal ) responsibility for the economic well-being of the American people is surely one of the two most significant watersheds in American constitutional history.
A third, one of at least equal and perhaps even greater importance, is now being traversed: American immersion and involvement in world affairs.
Today, as new nations rise from the former colonial empires, nationalism is one of the hurricane forces loose in the world.
Historically, however, the concept is one that has been of marked benefit to the people of the Western civilizational group.
It is one of the ironic quirks of history that the viability and usefulness of nationalism and the territorial state are rapidly dissipating at precisely the time that the nation-state attained its highest number ( approximately 100 ).
But it is more than irony: one of the main reasons why nationalism is no longer a tenable concept is because it has spread throughout the planet.
Accidental war is so sensitive a subject that most of the people who could become directly involved in one are told just enough so they can perform their portions of incredibly complex tasks.
Only one rule prevailed in my conversations with these men: The more highly placed they are -- that is, the more they know -- the more concerned they have become.
However, the system is designed, ingeniously and hopefully, so that no one man could initiate a thermonuclear war.
0.114 seconds.