SPINEL PRODUCTION
نویسندگان
چکیده
منابع مشابه
The Spinel Explorer - Interactive Visual Analysis of Spinel Group Minerals
Geologists usually deal with rocks that are up to several thousand million years old. They try to reconstruct the tectonic settings where these rocks were formed and the history of events that affected them through the geological time. The spinel group minerals provide useful information regarding the geological environment in which the host rocks were formed. They constitute excellent indicato...
متن کاملCrystalization in Spinel Ferrite Nanoparticles
The enhanced interest of the researchers in nanoobjects is due to the discovery of unusual physical and chemical properties of these objects, which is related to manifestation of so-called ‘quantum size effects‘. These arise in the case where the size of the system is commensurable with the de-Brogli wavelengths of the electrons, phonons or excitons propagating in them.A key reason for the chan...
متن کاملRevisiting the electron microprobe method of spinel-olivine-orthopyroxene oxybarometry applied to spinel peridotites
Natural peridotite samples containing olivine, orthopyroxene, and spinel can be used to assess the oxygen fugacity ( fO2) of the upper mantle. The calculation requires accurate and precise quantification of spinel Fe3+/SFe ratios. Wood and Virgo (1989) presented a correction procedure for electron microprobe (EPMA) measurements of spinel Fe3+/SFe ratios that relies on a reported correlation bet...
متن کاملExotic properties of spinel oxide superconductor Li1þxTi2O4
The polycrystalline Li1þxTi2O4 has intricate physical behaviors in normal and superconducting state. High-resolution X-ray diffraction shows that it is the pure spinel phase and there is no structural phase transition down to 20 K. In addition to the field-induced broadening of RðT Þ near the superconducting regime, an anomalous upturn in RðT Þ appears near the transition temperature when magne...
متن کاملMagnetic Cation Distribution in Nanocrystalline Fe3O4 Spinel
Neutron diffraction study of nanostructured magnetite was performed at room temperature. The actual grain-size was determined from evaluation of X-ray diffraction profiles by the modified Williamson-Hall plot. The atomic structure parameters and the sublattice magnetic moments were determined using the Rietveld refinement of the neutron diffraction spectra. The sublattice magnetization at the o...
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ژورنال
عنوان ژورنال: NOVYE OGNEUPORY (NEW REFRACTORIES)
سال: 2017
ISSN: 1683-4518
DOI: 10.17073/1683-4518-2017-3-127-133