scholarly journals Characterisation of high purity rare-earth oxides by x-ray fluorescence methods

1981 ◽  
Vol 3 (3) ◽  
pp. 371-374 ◽  
Author(s):  
R M Dixit
Keyword(s):  
Rare Earth ◽  
High Purity ◽  
Rare Earth Oxides ◽  
X Ray ◽  
Fluorescence Methods

scholarly journals X-Ray Emission Spectrographic Analysis of High-Purity Rare Earth Oxides

1959 ◽  
Vol 31 (5) ◽  
pp. 809-811 ◽  
Author(s):  
Farrel W. Lytle ◽  
Howard H. Heady
Keyword(s):  
Rare Earth ◽  
High Purity ◽  
Rare Earth Oxides ◽  
Spectrographic Analysis ◽  
X Ray

scholarly journals X-Ray Emission Spectrographic Analysis of High-Purity Rare-Earth Oxides

1958 ◽  
Vol 2 ◽  
pp. 333-339
Author(s):  
Farrel W. Lytle ◽  
Howard H. Heady
Keyword(s):  
Rare Earth ◽  
High Purity ◽  
Accurate Determination ◽  
Rare Earth Oxides ◽  
Average Error ◽  
Spectrographic Analysis ◽  
Spectral Line Intensity ◽  
X Ray ◽  
Precision And Accuracy

AbstractMinor amounts of rare-earth elements (0.01 to 1.0%) in high-purity rare-earth oxides may be determined by a fluorescent X-ray procedure. The analysis of high-purity yttrium, cerium, praseodymium, neodymium, and samarium is described. Basic to the method is accurate determination of spectral line intensity above background. Sample and standard preparation, choice of analytical lines, and utilization of a helium path to increase X-ray intensities are discussed. Precision and accuracy were evaluated by analyzing samples of known composition. The average of five separate determinations showed an average error of about 10 per cent.

scholarly journals Effect of Rare Earth Oxides on Microstructure and Corrosion Behavior of Laser-Cladding Coating on 316L Stainless Steel

Coatings ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 636 ◽  
Author(s):  
Xu ◽  
Wang ◽  
Chen ◽  
Qiao ◽  
Zhang ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Rare Earth ◽  
Corrosion Behavior ◽  
Laser Cladding ◽  
316L Stainless Steel ◽  
Electrochemical Impedance ◽  
Salt Spray ◽  
Rare Earth Oxides ◽  
X Ray Diffraction ◽  
X Ray

The effect of rare earth oxides on the microstructure and corrosion behavior of laser-cladding coating on 316L stainless steel was investigated using hardness measurements, a polarization curve, electrochemical impedance spectroscopy (EIS), a salt spray test, X-ray diffraction, optical microscopy, and scanning electron microscopy (SEM). The results showed that the modification of rare earth oxides on the laser-cladding layer caused minor changes to its composition but refined the grains, leading to an increase in hardness. Electrochemical and salt spray studies indicated that the corrosion resistance of the 316L stainless steel could be improved by laser cladding, especially when rare earth oxides (i.e., CeO2 and La2O3) were added as a modifier.

Preparation, crystalline properties and X-ray absorption spectra of rare earth oxides ROx (R ≡ Ce, PrandTb; 1.5 ⩽ x ⩽ 2)

1989 ◽  
Vol 156 (1-2) ◽  
pp. 59-73 ◽  
Author(s):  
M. Gasgnier ◽  
G. Schiffmacher ◽  
L. Albert ◽  
P.E. Caro ◽  
H. Dexpert ◽  
...  
Keyword(s):  
Rare Earth ◽  
Absorption Spectra ◽  
Rare Earth Oxides ◽  
X Ray ◽  
X Ray Absorption

Electronic structure, chemical bonding and X-ray photoelectron spectra of light rare-earth oxides

1985 ◽  
Vol 59 (1) ◽  
pp. 1-6 ◽  
Author(s):  
M. V. Ryzhkov ◽  
V. A. Gubanov ◽  
Yu. A. Teterin ◽  
A. S. Baev
Keyword(s):  
Electronic Structure ◽  
Rare Earth ◽  
Chemical Bonding ◽  
Rare Earth Oxides ◽  
Photoelectron Spectra ◽  
Light Rare Earth ◽  
X Ray
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