Results 11 to 20 of about 29,041 (189)
Room temperature Mössbauer characterization of ferrite with spinel structure [PDF]
Science of SinteringCobalt ferrite (CoFe2O4) nanoparticle were obtained by different synthesis methods: coprecipitation (CO), ultrasonically assisted coprecipitation (US-CO), coprecipitation followed by mechanochemical treatment (MC-CO), microemulsion (ME) and microwave ...
Lazarević Zorica Ž. +6 more
doaj +2 more sources
Mössbauer spectroscopy of sulphidic minerals [PDF]
Acta Montanistica Slovaca, 2000 Principles of the Mössbauer effect and the possibilities of its utilization for the study of sulphidic minerals are discussed. There is possibility to apply the Mössbauer spectroscopy in mineralogy for the identification of sulphides (fingerprint ...
Lipka Jozef, Balá Peter
doaj +2 more sources
Spin Transition of Iron in Deep‐Mantle Ferromagnesite
Geophysical Monograph Series, Page 115-125., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Jiachao Liu, Suyu Fu, Jung‐Fu Lin
wiley +3 more sources
CARACTERIZACIÓN MÖSSBAUER DE MINERALES DE HIERRO EN ROCAS NATURALES
Revista de Investigación de Física, 2000 Este trabajo de la caracterización por espectroscopía Mössbauer por 57Fe de rocas naturales con alto contenido de óxidos y compuestos de hierro tales como magnetita Fe3O4 y magnetita con calcopirita Fe3O4.CuFeS2.
Carolina Trujillo Sáenz +1 more
doaj +1 more source
Journal of Saudi Chemical Society, 2017 AbstractCrystalline magnesium ferrite (MgFe2O4) spinel oxide powder was synthesized by nitrate–citrate sol–gel auto-combustion process with stoichiometric composition of metal nitrate salts, urea and citric acid. The study was focused on the modification of synthesis conditions and effect of these modified conditions on the structural and electrical ...
Shahid Khan Durrani +4 more
openaire +2 more sources
Revista 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
Mecano-Síntesis de la Aleación Fe-Cu
Revista 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
Clio 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
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Investigation of phase transformations of iron nanoparticles during thermal annealing [PDF]
EPJ 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
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Mössbauer spectroscopy and its application to the chemical science [PDF]
E3S Web of ConferencesMössbauer 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
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