Search Results - "Nivoix, V."
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Characterization of nanocrystalline Mn-Zn ferrites obtained by mechanosynthesis
Published in Journal of materials science (01-08-2004)“…Different Zn and Mn-Zn ferrites have been obtained by High Energy Ball Milling (HEBM) from elemental oxides. By varying the rotation speed of vials and main…”
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Preparation, characterization and reactivity toward oxygen of new nanosized vanadium–iron spinels
Published in Solid state ionics (01-08-1998)“…Different series of nanosized VxFe3−xO4 (0≤x≤2) spinels have been prepared by a soft chemistry method in 0.5x intervals and studied by X-ray diffraction,…”
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New cation-deficient vanadium–iron spinels with a high vacancy content
Published in Materials research bulletin (01-07-1999)“…New cation-deficient vanadium–iron spinels V 8x/(8+δ)Fe (24−8x)/(8+δ)□ 3δ/(8+δ)O 4 have been obtained by the oxidation at low temperature (<500°C) of the…”
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Modeling of the DTG curves for oxidation of a nanosized molybdenum ferrite coupling mechanics and diffusion
Published in Journal of thermal analysis and calorimetry (01-01-2000)Get full text
Conference Proceeding Journal Article -
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Reactivity toward oxygen and cation distribution in copper-manganese ferrite spinels fine powders
Published in Materials chemistry and physics (01-04-1997)“…The thermal behaviour of CU y Mn x Fe 3− y−x O 4 spinels (0≤x≤1, x+y ≈ 1) obtained at low temperature has been investigated over the temperature range of…”
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Intermediate valencies of vanadium cations appearing during oxidation of vanadium–iron spinels
Published in Materials chemistry and physics (01-02-2000)“…The oxidation state of vanadium cations in nanosized vanadium–iron spinels at stoichiometry and at oxidative nonstoichiometry has been investigated by…”
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Synthesis and Stability Region of Stoichiometric Nanocrystalline Vanadium−Iron Spinel Powders
Published in Chemistry of materials (01-10-2000)“…Vanadium−iron spinels with nanometric sizes have been synthesized by a soft chemistry route. This way of elaboration consists of a coprecipitation followed by…”
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Experimental set up for determining the temperature-oxygen partial pressure conditions during synthesis of spinel oxide nanoparticles
Published in Solid state ionics (01-11-1997)Get full text
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Experimental set up for determining the temperature—oxygen partial pressure conditions during synthesis of spinel oxide nanoparticles
Published in Solid state ionics (01-11-1997)“…Nanometric spinel oxide powders, Fe 3− x M x O 4, where M is a transition element, have been synthetized by soft chemistry. This method generally leads to a…”
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Cation distribution in a titanium ferrite Fe2.75Ti0.25O4 measured by in-situ anomalous powder diffraction using Rietveld refinement
Published in Journal of solid state chemistry (15-11-1998)Get full text
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Cation Distribution in a Titanium Ferrite Fe2.75Ti0.25O4Measured byin-SituAnomalous Powder Diffraction Using Rietveld Refinement
Published in Journal of solid state chemistry (15-11-1998)“…Many ferrites contain different cations with various valence states and location in the spinel structure. In compounds such as these, only a combination of…”
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Thermal behavior and cation distribution in nanosized Mo-Co ferrite spinels Mo sub(0.5)Co sub(y)Fe sub(2.5-y)O sub(4) (0 less than or equal to y less than or equal to 1) studied by DTG, FT-IR and DC conductivity
Published in Materials chemistry and physics (01-11-1999)“…A cobalt content varying in a large domain of composition (0 less than or equal to y less than or equal to 1) has been studied by X-ray diffraction, infrared…”
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Thermal behavior and cation distribution in nanosized Mo-Co ferrite spinels Mo 0.5Co yFe 2.5− yO 4 (0 ≤ y ≤ 1) studied by DTG, FT–IR and DC conductivity
Published in Materials chemistry and physics (1999)“…a cobalt content varying in a large domain of composition (0 ≤ y ≤ 1) has been studied by X-ray diffraction, infrared spectroscopy, thermal analyses (DTG and…”
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Electron exchanges in nanometric molybdenum ferrites
Published in Ionics (01-09-1996)Get full text
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Experimental set up for determining the temperature-oxygen partial pressure conditions during synthesis of spinel oxide nanoparticles
Published in Solid state ionics (1997)Get full text
Conference Proceeding