Results 21 to 30 of about 41,619 (168)

Mecano Síntesis

open access: yesRevista de Investigación de Física, 1998
La mecano-síntesis es una técnica de producción de nuevos materiales metálicos en fases fuera del equilibrio termodinámicos, tales como soluciones sólidas extendidas, solcuiones sólidas amorfas, fases nanocristalinas, fases nanovítreas, cuasicristales ...
Víctor Antonio Peña Rodríguez
doaj   +1 more source

Chemical Environment Selectivity in Mössbauer Diffraction from 57Fe3Al [PDF]

open access: yes, 1997
Mössbauer diffraction was used to measure different autocorrelation functions for 57Fe atoms in different chemical environments. The sample was polycrystalline 57Fe3Al with the ordered DO3 structure.
Fultz, B., Stephens, T. A.
core   +1 more source

Mecano-Síntesis de la Aleación Fe-Cu

open access: yesRevista de Investigación de Física, 1999
El objetivo principal del presente trabajo es la producción de la aleación Fe-Cu dentro de un rango de composición donde el diagrama de fase de equilibrio reporta a este sistema como insoluble.
Justiniano Quispe M
doaj   +1 more source

PINTURAS RUPESTRES DO SÍTIO ARQUEOLÓGICO LETREIRO DA PEDRA RISCADA: Micromorfologia, Composição Química e Espécies Ferruginosas dos Filmes Pictóricos

open access: yesClio Arqueológica, 2020
Neste trabalho, a composição química e espécies ferruginosas de filmes pictóricos de pinturas rupestres do sítio arqueológico Letreiro da Pedra Riscada (Domingos Mourão, Piauí, Brasil) foram investigadas por fluorescência de raios X e espectroscopia ...
José de Jesus Nunes Júnior   +1 more
doaj   +1 more source

Investigation of phase transformations of iron nanoparticles during thermal annealing [PDF]

open access: yesEPJ Web of Conferences, 2019
Structural properties and phase composition of nanoparticles based on iron oxide were studied. Mossbauer spectroscopy, X-ray diffraction, and scanning electron microscopy were used for the analysis of phase transformations. According to XRD and Mossbauer
Tulebayeva Dinara   +3 more
doaj   +1 more source

Mössbauer spectroscopy and its application to the chemical science [PDF]

open access: yesE3S Web of Conferences
Mössbauer spectroscopy is a powerful tool to investigate the physical and chemical state of the solid material including Mössbauer nuclide. The mechanism of Mössbauer spectroscopy is nuclear energy is shifted and spit by the interaction of the nucleus ...
Nakashima Satoru
doaj   +1 more source

Application of Nuclear Inelastic Scattering Spectroscopy to the Frequency Scale Calibration of Ab Initio Calculated Phonon Density of States of Quasi-One-Dimensional Ternary Iron Chalcogenide RbFeSe2

open access: yesApplied Sciences, 2020
This study aims to examine the applicability of nuclear inelastic scattering (NIS) and conventional Mössbauer spectroscopy for calibration of the frequency scale of ab initio calculated phonon density of states (PDOS) of iron ternary chalcogenides.
Airat Kiiamov   +9 more
doaj   +1 more source

X‐ray magnetic circular dichroism

open access: yesMajor Reference Works, Page 508-515., 2022
International Tables for Crystallography is the definitive resource and reference work for crystallography and structural science.

Each of the eight volumes in the series contains articles and tables of data relevant to crystallographic research and to applications of crystallographic methods in all sciences concerned with the ...
Gerrit van der Laan C. Chantler   +2 more
wiley  

+1 more source

Redox‐Mediated Electrochemical Regeneration of Spent LiFePO4 Battery Cathodes

open access: yesAngewandte Chemie, EarlyView.
This work demonstrates a redox‐mediated electrochemical method for direct recycling of spent LiFePO4 battery cathodes. A water‐soluble mediator, iron propylenediamine tetraacetate (Fe‐PDTA), transports electrons into an off‐electrode reservoir where it drives compositional and structural repair of degraded LiFePO4.
Deok‐Ho Roh   +5 more
wiley   +2 more sources

Mössbauer study of nanodimensional nickel ferrite-mechanochemical synthesis and catalytic properties [PDF]

open access: yes, 2005
Iron-nickel spinel oxide NiFe2O4 nanoparticles have been prepared by the combination of chemical precipitation and subsequent mechanical milling. For comparison, their analogue obtained by thermal synthesis is also studied.
B. Kunev   +17 more
core   +2 more sources

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