Resistive, magnetic, and structural studies of Tl0.5Pb0.5(Ca1−xMx)Sr2Cu2Oycompounds withMequal to the natural mixture of rare‐earth elements

1989 ◽  
Vol 55 (19) ◽  
pp. 2029-2031 ◽  
Author(s):  
R. S. Liu ◽  
W. N. Wang ◽  
J. M. Liang ◽  
P. T. Wu
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Structural Studies ◽  
Natural Mixture

Preparation of Stabilized Zirconia Using A Mixture of Rare Earth Oxides as Dopant

1994 ◽  
Vol 346 ◽  
Author(s):  
Adelina P. Santos ◽  
Rosana Z. D. Fernandes
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Phase Diagrams ◽  
Chemical Properties ◽  
Dopant Distribution ◽  
Stabilized Zirconia ◽  
Stabilization Process ◽  
Physical Chemical ◽  
Natural Mixture ◽  
Cubic Structure

ABSTRACTThe present work deals with the effect of the rare earth nature and the content of the oxide dopants on the stabilization process of zirconia based ceramics. There are two main interests in our work. The first is to verify the possibility of stabilizing a cubic structure of zirconia using a natural mixture of rare earth elements as dopant, and second, to study and to characterize its basic physical-chemical properties such as phase diagrams, zirconia stabilization models and dopant distribution.

A 92.5 K REBa2Cu3O7-δ SUPERCONDUCTOR STARTING FROM NATURAL MIXTURE OF RARE EARTH ELEMENTS

1999 ◽  
Vol 13 (14) ◽  
pp. 485-490 ◽  
Author(s):  
P. RODRIGUES ◽  
A. R. JURELO ◽  
J. FLEMMING
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Lattice Parameters ◽  
Superconducting Properties ◽  
X Ray Diffraction ◽  
Yttrium Atom ◽  
X Ray ◽  
Natural Mixture ◽  
Average Lattice

The processing and characterization of a REBa 2 Cu 3 O 7-δ, sample superconductor is described, where RE corresponds to a natural mixture of rare earth elements extracted from xenotime mineral. This mixture contains no Pr and, contrary to previous studies, can substitute the yttrium atom in YBa 2 Cu 3 O 7-δ, (YBCO) without deleterious effects in structural and superconducting properties, as measured by X-ray diffraction, resistivity and magnetoresistivity. Our sample presented T c =92.5 K and average lattice parameters a=3.821 Å, b=3.896 Å and c=11.686 Å, which are very similar to YBCO properties. Considering that the process of separation of Y (and other pure rare earth elements) from any natural mixture involves high costs, our system represents a practical alternative to YBCO compound.

Structural studies of magnetic nanoparticles doped with rare-earth elements

2016 ◽  
Vol 57 (7) ◽  
pp. 1444-1449 ◽  
Author(s):  
T. A. Lastovina ◽  
A. L. Bugaev ◽  
S. P. Kubrin ◽  
E. A. Kudryavtsev ◽  
A. V. Soldatov
Keyword(s):  
Rare Earth ◽  
Magnetic Nanoparticles ◽  
Rare Earth Elements ◽  
Structural Studies

Flame spectra of the rare-earth elements*

1962 ◽  
Vol 18 (4) ◽  
pp. 1127-1153
Author(s):  
V FASSEL ◽  
R CURRY ◽  
R KNISELEY
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
The Rare Earth
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