Search Results - "Pérez, Germán A."

Characterization of Magnesium Doped Lithium Iron Silicate by Jaén, Juan A., Iglesias, Josefina, Muñoz, Alcides, Tabares, Jesús A., Pérez Alcázar, Germán A.

“…The synthesis of Mg doped Li2Fe1–xMgxSiO4 (x = 0, 0.10 and 0.15) via solid-state reaction is reported. The product was characterized by Mössbauer spectroscopy…”
Get full text

Magnetism in Granular Systems by Salazar, Manuel, Pérez Alcazar, Germán A.

“…Previous experimental studies have shown that the magnetic dipolar interaction plays an important role in several magnetic properties of nanoparticulated…”
Get full text

Effect of chrome on the magnetic and structural properties of Mn57-xAl43Crx (x = 0.51, 0.91, 1.51) and Mn53.3-XAl45C1.7Crx (x = 0.0, 0.5, 1.0, 1.5, 2.0, 2.5) alloy systems by Benitez, Marisela, Trujillo, J. Sebastián, Pérez Alcázar, German A.

“…•Carbon in the t -Mn53.3-x Al45 C1.7 Crx phase stabilizes it and improves its magnetic properties.•The t -Mn53.3-x Al45 C1.7 Crx is instable for chromium…”
Get full text

Production and structural and magnetic characterization of copper oxide nanocrystals with large Fe contents by Arias, Juan David, Colorado, Hernán Darío, Benítez, Marisela, Pérez Alcázar, German A.

“…In this work it was studied the influence of large quantities of iron in the structural and magnetic properties of copper oxide nanoparticles, which were…”
Get full text

Mineralogical analysis of auriferous ores from the El Diamante mine, Colombia by Bustos Rodriguez, Humberto, Oyola Lozano, Dagoberto, Rojas Martínez, Yebrayl A., Pérez Alcázar, Germán A., Flege, Stefan, Balogh, Adam G., Cabri, Louis J., Tubrett, Michael

“…X-ray diffraction (XRD), Mössbauer spectrometry (MS), secondary ions mass spectroscopy (SIMS) and laser-ablation microprobe–inductively coupled plasma–mass…”
Get full text

Processing and characterization of Nd2Fe14B microparticles prepared by surfactant-assisted ball milling by Naranjo, Camilo E. Echeverry, Hernandez, Juan S. Trujillo, Salgado, Maria J. Rojas, Tabares, Jesús A., Maccari, Fernando, Cortes, Alexander, Alcázar, German A. Pérez

“…The synthesis of hard magnetic nanoparticles based on the Nd 2 Fe 14 B system has been studied by means of surfactant-assisted ball milling technique. The XRD…”
Get full text

Toll‐like receptor signaling inhibits structural development of the distal fetal mouse lung by Prince, Lawrence S., Dieperink, Heather I., Okoh, Victor O., Fierro‐Perez, German A., Lallone, Roger L.

“…We tested the hypothesis that innate immune signaling in utero could disrupt the structural development of the fetal lung, contributing to the pathogenesis of…”
Get full text

Synthesis and characterization of LaFe11.57Si1.43 and LaFe11.57Si1.43H alloys for magnetic refrigeration applications by Benitez, Marisela, Marín, Lorena, Rodríguez-Crespo, Bosco, Salazar, Daniel, Tabares, Jesús A., Trujillo, Juan Sebastián, Pérez, Germán A., Rodríguez, Luis A., Zamora, Ligia E.

“…This study is based on the need to consolidate environmentally friendly technology to overcome pollution problems caused by conventional refrigerators…”
Get full text

Espectroscopia Móssbauer by Pérez, Germán A.

“…En los núcleos, como en los átomos, existen niveles de energía y cuando el núcleo pasa de un estado a otro de más baja energía ocurre la emisión de rayos y. Un…”
Get full text

Comportamiento Metalúrgico y Mecánico de la Unión Soldada de Aceros de Alta Resistencia by Aguilar, Yesid, Pérez A, Germán

“…Se Moldaron loe aceros de alta resistencia ASTM A 283-C y ASTM A 515 70 por los procesos de Arco Sumergido (SAW) y de soldadura con electrodo manual revestido…”
Get full text

Structural study on nickel doped Li2FeSiO4 by Jaén, Juan A., Jiménez, Miguel, Flores, Eibar, Muñoz, Alcides, Tabares, Jesús A., Pérez Alcázar, Germán A.

“…The effect of nickel doping on the structure of Li 2 FeSiO 4 is examined by X-ray diffraction, Mössbauer spectroscopy, Fourier transform infrared spectroscopy,…”
Get full text

ESTUDIO DE LAS PROPIEDADES MAGNETICAS Y ESTRUCTURALES DE ALEACIONES Nd16Fe76-xNixB8 CON BAJOS CONTENIDOS DE Ni by Juana M. Jiménez, Germán Y. Vélez, Ligia E. Zamora, Germán A. Pérez

“…En este trabajo reportamos las propiedades magnéticas y estructurales de las aleaciones Nd16Fe76-xNixB8 (x=0, 2.5, 5, 7.5 y 10). Este sistema fue investigado…”
Get full text

Magnetic and Structural Characterization of Mechanically Alloyed Fe50co50 Samples by Pérez Alcázar, Germán A., Zamora, Ligia Edith, Marco, José Francisco, Romero, Juan José, González, Jesús María, Palomares, Francisco Javier

“…Samples of nominal composition Fe50Co50 were produced by mechanical alloying byusing a planetary ball mill and different milling times. The samples were…”
Get full text