Dictionnaire français - anglais

fergusonite

sciences naturelles et appliquées - iate.europa.eu
On trouve aussi de l'yttrium dans la samarskite et la fergusonite.

The element can also be found in samarskite and fergusonite.

général - CCMatrix (Wikipedia + CommonCrawl)
On le rencontre toujours associé à d'autres terres rares, en faible quantité, et dans les mêmes minéraux que le dysprosium (gadolinite, fergusonite et xénotime) sa quantité dans la croûte terrestre est de 3,8 ppm.

It is always found in combination with other rare earths, being found in small quantities in the same minerals as dysprosium (gadolinite, fergusonite and xenotime); its abundance in the Earth's crust is 3.8 ppm.

général - CCMatrix (Wikipedia + CommonCrawl)
Determination of the high-pressure crystal structure of bawo4 and pbwo4...7.1 GPa from the tetragonal scheelite structure (which isstable under normal conditions) to the monoclinic fergusonite structure whereasthe same transition takes place in PbWO4 at 9 GPa....
général - core.ac.uk - PDF: arxiv.org
Effects of pressure on the local atomic structure of cawo4 and ylif4: mechanism of the scheelite-to-wolframite and scheelite-to-fergusonite transitionsThe pressure response of the scheelite phase of CaWO4 (YLiF4) and theoccurrence of the pressure induced scheelite-to-wolframite (M-fergusonite)transition are reviewed and discussed....
 PDF: arxiv.org
Experimental and theoretical investigations on thgeo4 at high pressure... A second phase transition to a monoclinic M-fergusonite type isfound beyond 26 GPa....
 PDF: arxiv.org
Pressure-induced tricritical phase transition from the scheelite structure to the fergusonite structure in...10.7 GPa, it reversibly undergoes a tricritical phase transition to the fergusonite structure (C12/c1, Z = 4), a distorted modification of the scheelite type....
Phase transition systematics in bivo4 by means of high-pressure-high-temperature raman experiments... We characterized the fergusonite and scheelite phases (powder and single crystal samples) and the zircon polymorph (nanopowder)....

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