scholarly journals Trends in the Rare Earth Element Content of U.S.-Based Coal Combustion Fly Ashes

2016 ◽  
Vol 50 (11) ◽  
pp. 5919-5926 ◽  
Author(s):  
Ross K. Taggart ◽  
James C. Hower ◽  
Gary S. Dwyer ◽  
Heileen Hsu-Kim
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Coal Combustion ◽  
Earth Element ◽  
Element Content ◽  
Rare Earth Element Content ◽  
Fly Ashes ◽  
The Rare Earth

An Assessment of the Rare Earth Element Content of Conventional and Electric Vehicles

2012 ◽  
Vol 5 (2) ◽  
pp. 473-477 ◽  
Author(s):  
Elisa Alonso ◽  
Timothy Wallington ◽  
Andrew Sherman ◽  
Mark Everson ◽  
Frank Field ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Electric Vehicles ◽  
Earth Element ◽  
Element Content ◽  
Rare Earth Element Content ◽  
The Rare Earth

scholarly journals Effect of Rare Earth Y on Properties of Nanosized 90W-7Ni-3Fe Composite Powder Fabricated by Spray Drying-Hydrogen Reduction

2008 ◽  
Vol 2008 ◽  
pp. 1-4 ◽  
Author(s):  
Y.-Z. Ma ◽  
Liu Wensheng ◽  
Huang Baiyun ◽  
Fan Jinglian
Keyword(s):  
Rare Earth ◽  
Spray Drying ◽  
Rare Earth Element ◽  
Earth Element ◽  
Particle Morphology ◽  
Oxide Powder ◽  
Element Content ◽  
Rare Earth Element Content ◽  
Composite Oxide ◽  
The Rare Earth

(W,Ni,Fe) composite oxide powder synthesized by spray drying was reduced at 700∘Cfor 90 minutes inH2atmosphere. The effect of rare earth Y onH2reduction of (W,Ni,Fe) composite oxide powder was studied. Phase composition, crystalline size, and particle morphology of the reduced powder have been measured by X-ray diffraction and scanning electron microscope (SEM). Fsss particle size and special surface area of the reduced powder were also measured and analyzed. The result showed that new phaseY(Ni0.75W0.25)O3appeared in the reduced powder and particle morphology was nearly spherical or polyhedron by Y additions. The higher the rare earth element content was, the bigger the influencing on particle morphology was. When the rare earth Y content was under 0.8%, with the increase of the rare earth element content,dBET, Fsss, and crystal sizes of the reduced powder decreased greatly.

Internal oxidation in solid solutions Bi2.1-xPbxSr2-yCa1-zRy+zCu2O8+d (R = Y, Nd or La).

2004 ◽  
Vol 848 ◽  
Author(s):  
A.V. Garshev ◽  
A.V. Knotko ◽  
M.N. Pulkin ◽  
D.I. Kirdyankin ◽  
A.V. Geyer ◽  
...  
Keyword(s):  
Rare Earth ◽  
Chemical Analysis ◽  
Rare Earth Element ◽  
Internal Oxidation ◽  
Solid Solutions ◽  
Oxidation Kinetics ◽  
Earth Element ◽  
Isothermal Condition ◽  
Element Content ◽  
Rare Earth Element Content

ABSTRACTBi2-xPbxSr2CaCu2O8+d solid solutions with substitution of Sr or Ca by Y, Nd or La were fabricated at 760 - 79°C in N2-flow. The as-synthesized solutions were oxidized in air under isothermal condition and tested with XRD, TGA chemical analysis, TEM, XANES. Effect of rare-earth element content on oxidation kinetics and microstructure of the product is discussed.

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