Effect of rare earth elements in combination with NiO on the spectral-absorption properties of glasses

1972 ◽  
Vol 29 (12) ◽  
pp. 798-800
Author(s):  
S. G. Kovchur ◽  
S. E. Savitskii ◽  
Ya. V. Shklyar ◽  
A. P. Gaiduk
CrystEngComm ◽  
2020 ◽  
Vol 22 (35) ◽  
pp. 5890-5899
Author(s):  
Gorodylova Nataliia ◽  
Kosinová Veronika ◽  
Šulcová Petra

The objective of presented study was to verify the concept of the formation of the REE–LZP solid solutions according to two different substitution models and to examine optical absorption properties of the samples for pigment application.


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

2020 ◽  
Vol 4 (2) ◽  
pp. 599-604
Author(s):  
Michael A. Onoja ◽  
P. H. Bukar ◽  
C. U. Omeje ◽  
A. M. Adamu

Instrumental neutron activation analysis (INAA) technique was used to investigate the abundance and distribution of rare earth elements (REE) in soil around Kaduna Refinery. The aim of the study is to assess the rare elements potential of Nigeria for economic exploitation. Five REEs (La, Dy, Eu, Yb, and Lu) were detected in varying concentrations ranging from a minimum of 0.6 µg/g (Lu) to a maximum of 249.0 µg/g (La). The elements existed with trends consistent with the natural pattern of REEs in soil, showing significant Eu and Dy anomalies which characterize upper plains and flood plains. The levels of REEs in soil in the study area were generally slightly above background levels, with minimal (La, Dy, and Eu), moderate (Yb), and significant (Lu) enrichments and trending: Lu ˃Yb ˃ Eu ˃ Dy ˃ La. The abundance of the REEs investigated cannot establish a potential of Nigeria for economic exploitation of the mineral, hence, rare earth project in the study area is not viable at the moment.


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