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Showing 1 to 20 of 187 for “"Spinel"”.
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Thermobarometry of Hawaiian Spinel Peridotites
… have reconstructed the P-T range of the Hawaiian spinel peridotites using the Ca-in-olivine barometer and the cpx-opx thermometer (TBKN). To correctly apply the thermobarometric equations, I first use the trace element concentrations in olivine and the apparent olivine/ cpx partition coefficients …
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Magnetoelectric Properties of Epitaxial Spinel Oxide Thin Films
Non-collinear spinel multiferroics, which have an AB2O4 structure, have attracted a great deal of attention in the past few years. Amongst them, the one that has drawn great attention is spinel vanadate, FeV2O4 (FVO), which has transition metal elements at both A and B sites. The interplay among …
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Real-space magnetic imaging of the spinel MnV2O4
… understood. One such class of materials are the spinels, including MnV2O4. Bulk probe studies of this compound have yielded conflicting and inconclusive results. To inform the debate and better understand the underlying physics, we performed magnetic force microscopy measurements on two MnV2O4 …
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Investigation of Spinel Ferrite Thin Films for Spintronics Applications
Spinel ferrite thin films have garnered special attention due to their usefulness in recent technological advances. They hold a significant promise for various device applications, including microwave devices, memory chips, transformer cores, antenna rods, and millimeter-wave integrated circuitry. …
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Sintering of Co2MnO4 spinel for protective coatings in SOFC
… steel interconnects or supports. Co2MnO4 spinel compounds are usually considered as the main constituent of protection barriers. Nevertheless, such ceramic sinters at high temperatures (>1200°C) and this can be problematic for the properties of the stainless steel components. One of the …
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Fe-Al-O spinel : internal structure and electrical conduction.
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 1977
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Enhancing the Electron Transfer at Electrochemical Interfaces by Spinel Oxide-Nanostructures
L'abstract è presente nell'allegato / the abstract is in the attachment
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Chemical Correlation of Magnetic Permeability and Microwave Absorption in Spinel Ferrite Nanoparticles
Spinel ferrites (MFe₂O₄, where M = Mn²⁺, Co²⁺, Zn²⁺, etc.) are magnetic nanomaterials with tunable properties that are valuable for wireless communication, memory storage, and electronics. Their complex permeabilities that are governed by composition, particle size, and spin-orbit interactions play …
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Neutron scattering investigations of spinel ferrimagnets: symmetry and magnetoelastic domain wall patterning
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-12-01
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The influences of carbon, nitrogen, and argon on aluminum oxynitride spinel formation
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1982.
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Growth of spinel oxide thin films for high efficiency room temperature spin filtering
In this thesis, the potential of all-spinel oxide tunnel junctions in the field of spintronics has been investigated. In particular, the suitability of the metallic and superconducting LiTi2O4 as non-magnetic electrode in an almost defect-free CoFe2O4-based spin-filter tunnel junction has been …
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Grain boundary mobility and segregation in non-stoichiometric solid solutions of magnesium aluminate spinel
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1985.
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Mechanical loading-induced and residual stress measurements in transparent spinel ceramics using Digital Gradient Sensing
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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Investigating Chemical and Structural Heterogeneities of High-Voltage Spinel Cathode Material for Li-ion Batteries
Li-ion battery technologies have transformed the consumer electronics and electric vehicles landscape over the last few decades. Single-crystal cathode materials with controllable physical properties including size, morphology, and crystal facets can aid researchers in developing relationships …
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The nature of the olivine - spinel transition in the Mg2SiO4-Fe2SiO4 system and its geophysical implications.
Thesis. 1976. Ph.D.--Massachusetts Institute of Technology. Dept. of Earth and Planetary Sciences.
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Textural and Chemical Relations Among Spinel-Sapphirine-Garnet-Orthopyroxene, Salt Hill Emery Mine, Cortlandt Complex, N.Y.
… fine-grained emery residuum which contained spinel, magnetite, ilmenohematite, sillimanite, and sporadically corundum. During cooling, melt within the xenoliths was injected as cm-scale veinlets into the silica-poor solid residuum. Local increase in silica activity resulted in progressive …
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Comparative of Flammable and Toxic Gas Sensing behavior for Rare-Earth Elements Substituted Cobalt based Spinel Ferrites
… work, we present a variety of cobalt-based spinel ferrites doped with 4f electron rare-earth ions to be used as flammable gas sensors. These spinel ferrites were fabricated following a glycol hydrothermal chemical-process. Due to their electronic configuration and charge dynamics, they are …
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Mechanisms of Shear Zone Localization and Raman Thermobarometry in Spinel Peridotites from the Alpine Fault, New Zealand
… <p> We find that remnant pressures preserved in spinel inclusions in olivine may be detectable using Raman spectroscopy, thereby serving as a thermobarometer for spinel peridotites. Preliminary results indicate that this a non-trivial undertaking due mainly to compositional variations in spinels …
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