Mössbauer spectroscopy
Calorimetric and Mössbauer spectroscopy examinations of ADI
... The Mössbauer examination of phase composition in a specimen „frozen” from 650 o C revealed the decay of austenite and the appearance of products of its decomposition, ...
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Mössbauer spectroscopy in the characterization of ferrous compounds in soils and its relationship with phosphorus retention.
... MÖSSBAUER SPECTROSCOPY IN THE CHARACTERIZATION OF FERROUS COMPOUNDS IN SOILS AND ITS RELATIONSHIP WITH PHOSPHORUS RETENTION. The chemical role of iron-bearing compounds on the dynamics of phosphorus in ...
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Study of Dronino Iron Meteorite Weathering in Clay Sand Using Mössbauer Spectroscopy
... RONINO meteorite shower was found in July 2000 near the Dronino village, Ryazan District, Russian Fed- eration. This meteorite was classified as iron ungrouped meteorite (see Meteoritical Bulletin № 88, 2004). Terres- ...
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Perovskite-Related Oxide Fluorides: The Use of Mössbauer Spectroscopy in the Investigation of Magnetic Properties
... with poly(vinylidene fluoride) (PVDF) in 1:1, 1:2 and 1:2.8 molar ratios and heating at 375 °C. X-ray powder diffraction showed successful fluorination with the unit cell volumes increasing with increasing levels of ...
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Variable Temperature <sup>57</sup>Fe-Mössbauer Spectroscopy Study of Nanoparticle Iron Carbides
... using Mössbauer spectroscopy by placing the material in relevant environments for that transition to occur, such as pressure, an external magnetic field or non-ambient ...
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Application of the Mössbauer Spectroscopy to Study Harmonically Modulated Electronic Structures: Case Study of Charge- and Spin-Density Waves in Cr and Its Alloys
... A Mössbauer spectrum can be simulated taking into account one periodicity, . At first a number of higher- order harmonics and their amplitudes are selected and the resulting CDW is constructed. Next, is divided ...
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Caracterização da parcela magnética de minério fosfático de carbonatito.
... The characterization of the magnetic fraction of a tail from phosphate rock processing was done. Samples were from Tapira, in Minas Gerais, Brazil. The main physical, chemical and mineralogical properties, as well as ...
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Caracterização Mineralógica de Concreções de Ferro por Efeito Mössbauer e Difratometria de Raios X
... and Mössbauer spectroscopy at room temperature and at 25 ...the Mössbauer spectra obtained at room temperature simultaneously exhibited a doublet and a hyperfine magnetic field distribution, both ...
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J. Braz. Chem. Soc. vol.21 número12
... (XRD), Mössbauer spectroscopy, energy dispersive X-ray spectroscopy (EDS), Raman spectroscopy, thermogravimetry (TG/DTA), elemental analysis (CHN), supericial area determination (BET), ...
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Transformações mineralógicas e cristaloquímicas decorrentes dos ensaios termais em argilas cauliníticas ferruginosas (Mineralogical and crystalochemical transformations originated from thermal essays on ferruginous kaolinitic clays)
... Mineralogical and crystallochemical transformations of representative ferruginous kaolinitic clay samples were investigated in specimens burned at 800, 1000 and 1200 °C. X-ray diffraction and differential thermal and ...
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Espectroscopia Mössbauer aplicada ao estudo da liga aço baixo carbono-Al nitretada.
... Electrons Mössbauer Spectroscopy (CEMS), X-ray diffraction (XRD), Scan Eletron Microscopy (SEM) and Vickers microhardness test were used for the characterization of those ...
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Transformações mineralógicas e cristaloquímicas decorrentes dos ensaios termais em argilas cauliníticas ferruginosas.
... Mineralogical and crystallochemical transformations of representative ferruginous kaolinitic clay samples were investigated in specimens burned at 800, 1000 and 1200 °C. X-ray diffraction and differential thermal and ...
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Estudo das Propriedades Magnéticas e Hiperfinas de Compostos NdFe1-xCrxSi2
... and Mössbauer spectroscopy techniques, including measurements at low temperatures for the last two ...The Mössbauer spectra revealed very low hyperfine magnetic fields throughout the temperature ...
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ARTIGO CaracterizaçãoParcelaMagnética
... The characterization of the magnetic fraction of a tail from phosphate rock processing was done. Samples were from Tapira, in Minas Gerais, Brazil. The main physical, chemical and mineralogical properties, as well as ...
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Magnetic Amphiphilic Composites Based on Carbon Nanotubes and Nanofibers Grown on an Inorganic Matrix: Effect on Water-Oil Interfaces
... (XRD), Mössbauer spectroscopy, energy dispersive X-ray spectroscopy (EDS), Raman spectroscopy, thermogravimetry (TG/DTA), elemental analysis (CHN), superficial area determination (BET), ...
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Influência do alumínio sobre as transformações magnetita → maghemita → hematita
... Synthetic magnetites containing different amounts of isomorphic substitution of the iron by aluminium were prepared and thus oxided to maghemites by heating in air at 420–430 o C. Samples were to, heated up 740 – 750 o C ...
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do compósito magnetodielétrico de Y3Fe5O12CaTiO3 para uso em dispositivos que operem microondas
... and Mössbauer Spectroscopy were used to elucidade structural properties of the ...Raman spectroscopy confirm that the synthesis of YIG was successfully ...the Mössbauer spectra showed good ...
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Caracterização magnética de óleos magnéticos isolantes para aplicação em transformadores
... efeito Mössbauer está na condição de que o núcleo Mössbauer pode ser empregado como uma sonda sensível à influência da ...experimento Mössbauer não é a energia dos raios-γ que é determinada, mas o ...
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Raman spectroscopy of nanographites
... Raman spectroscopy one of the main tools for the structural charac- terization of nano-graphitic systems, where the crystalline edges acts as ...Raman spectroscopy in graphite is such a rich subject that it ...
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Broadband transmission EPR spectroscopy.
... EPR spectroscopy employs a resonator operating at a single microwave frequency and phase-sensitive detection using modulation of the magnetic field. The X-band spectrometer is the general standard with a frequency ...
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