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Papers by Carlos Rosendo Arganis Juárez

Research paper thumbnail of Characterization of Dissimilar Welds of Carbon Steels and Ni-Filler Alloy

Metallography, Microstructure, and Analysis

Research paper thumbnail of Comportamiento electroquímico de dos aceros de refuerzo embebidos en morteros con y sin cloruros

Research paper thumbnail of The Effect of Yttria Addition on the Microstructure and Mechanical Behavior of Ods Ferritic Alloys Processed by High Energy Milling And Spark Plasma Sintering

Revista de Metalurgia, 2023

Oxide dispersion strengthened (ODS) ferritic alloys are structural materials used in nuclear fus... more Oxide dispersion strengthened (ODS) ferritic alloys are structural materials used in nuclear
fusion reactors, which exhibit enhanced mechanical properties, as well as corrosion and irradiation resistance.
In the present work, ODS ferritic alloys with composition Fe-14Cr-1.5W-0.4Ti-(0, 0.4, 0.8) Y2O3 (in wt.%)
were prepared employing high energy milling (HEM) followed by Spark Plasma Sintering (SPS). The particle
size distribution (PSD) of the milled powders was characterized by laser diffraction. These powders and the
sintered materials produced were characterized using X-ray diffraction (XRD), and scanning electron microscopy
(SEM). The sintered materials were also characterized by dilatometry, diametral compression, Vickers
microhardness, and corrosion rate tests. The largest Young’s modulus, microhardness, and dimensional
shrinkage/expansion were obtained for the 0.8 wt.% Y2O3 alloy. However, this alloy was the least ductile.
Furthermore, the 0.8 wt.% Y2O3 alloy was the one with the least dimensional change. According to the potentiodynamic
polarization studies, it was found that the protective layer of Cr2O3 formed on the surface of the
three alloys studied was less effective for the yttria-free alloy, since in this case the rupture of such protective
layer occurred earlier than for the case of the yttria-containing alloys. Based on these results, it is suggested
that the 0.8 wt.% Y2O3 alloy having fine microstructure could constitute a potential alternative as a structural
material for Gen IV-type reactors.

Research paper thumbnail of Electrochemical detector based on a modified graphite electrode with phthalocyanine for the elemental analysis of actinides

Chemosphere, 2021

The quantification of actinides in aqueous solutions involves complex and expensive separation pr... more The quantification of actinides in aqueous solutions involves complex and expensive separation processes. Electrochemical methods have been widely used for the quick and accurate identification and quantification of organic and inorganic compounds directly or indirectly. Therefore, this work proposes the use of modified graphite with phthalocyanine for electrochemical detection and quantification of Th, U, Pu, Am, and Cm, in aqueous media by cyclic voltammetry. The electrodes were characterized by Raman and infrared spectroscopy, and the cyclic voltammetry data were modeled with Aoki's model. The detection limits (DL) and the quantification limits (QL) reached by the electrochemical detection of these actinides were of the order of ppt. Aoki's model fitted perfectly with the experimental data. The functionalization of graphite electrodes promotes the formation of phthalic anhydride, and the phthalocyanine is anchored on the epoxy groups of the graphite. The electrochemical detection process of these actinides is indirect. This electrochemical detector is cheap and disposable and can be an alternative for an initial characterization of actinides in liquid waste.

Research paper thumbnail of Characterization of Dissimilar Welds of Carbon Steels and Ni-Filler Alloy

Metallography, Microstructure, and Analysis

Research paper thumbnail of Comportamiento electroquímico de dos aceros de refuerzo embebidos en morteros con y sin cloruros

Research paper thumbnail of The Effect of Yttria Addition on the Microstructure and Mechanical Behavior of Ods Ferritic Alloys Processed by High Energy Milling And Spark Plasma Sintering

Revista de Metalurgia, 2023

Oxide dispersion strengthened (ODS) ferritic alloys are structural materials used in nuclear fus... more Oxide dispersion strengthened (ODS) ferritic alloys are structural materials used in nuclear
fusion reactors, which exhibit enhanced mechanical properties, as well as corrosion and irradiation resistance.
In the present work, ODS ferritic alloys with composition Fe-14Cr-1.5W-0.4Ti-(0, 0.4, 0.8) Y2O3 (in wt.%)
were prepared employing high energy milling (HEM) followed by Spark Plasma Sintering (SPS). The particle
size distribution (PSD) of the milled powders was characterized by laser diffraction. These powders and the
sintered materials produced were characterized using X-ray diffraction (XRD), and scanning electron microscopy
(SEM). The sintered materials were also characterized by dilatometry, diametral compression, Vickers
microhardness, and corrosion rate tests. The largest Young’s modulus, microhardness, and dimensional
shrinkage/expansion were obtained for the 0.8 wt.% Y2O3 alloy. However, this alloy was the least ductile.
Furthermore, the 0.8 wt.% Y2O3 alloy was the one with the least dimensional change. According to the potentiodynamic
polarization studies, it was found that the protective layer of Cr2O3 formed on the surface of the
three alloys studied was less effective for the yttria-free alloy, since in this case the rupture of such protective
layer occurred earlier than for the case of the yttria-containing alloys. Based on these results, it is suggested
that the 0.8 wt.% Y2O3 alloy having fine microstructure could constitute a potential alternative as a structural
material for Gen IV-type reactors.

Research paper thumbnail of Electrochemical detector based on a modified graphite electrode with phthalocyanine for the elemental analysis of actinides

Chemosphere, 2021

The quantification of actinides in aqueous solutions involves complex and expensive separation pr... more The quantification of actinides in aqueous solutions involves complex and expensive separation processes. Electrochemical methods have been widely used for the quick and accurate identification and quantification of organic and inorganic compounds directly or indirectly. Therefore, this work proposes the use of modified graphite with phthalocyanine for electrochemical detection and quantification of Th, U, Pu, Am, and Cm, in aqueous media by cyclic voltammetry. The electrodes were characterized by Raman and infrared spectroscopy, and the cyclic voltammetry data were modeled with Aoki's model. The detection limits (DL) and the quantification limits (QL) reached by the electrochemical detection of these actinides were of the order of ppt. Aoki's model fitted perfectly with the experimental data. The functionalization of graphite electrodes promotes the formation of phthalic anhydride, and the phthalocyanine is anchored on the epoxy groups of the graphite. The electrochemical detection process of these actinides is indirect. This electrochemical detector is cheap and disposable and can be an alternative for an initial characterization of actinides in liquid waste.