Hexagonal to Cubic Spinel Transformation in Lithiated Cobalt Oxide [PDF]
, 2004 A transmission electron microscopy (TEM) investigation was performed on LiCoO2 before and after it had been subjected to charge/discharge cycling in electrochemical cells, as well as on delithiated Li(1–x)CoO2 before and after thermal aging. Turbostratic
Fultz, Brent +2 more
core +3 more sources
Data in Brief, 2020 Photoluminescence (PL) spectra of natural Cr3+ doped MgAl2O4 spinel from Tanzania were taken during its order-disorder transition (ODT) process. Samples were changed their disordered degree by quenching treatment.
Chengsi Wang, Andy H. Shen, Yungui Liu
doaj +1 more source
Mechanical Behavior of Transparent Spinel Fabricated by Spark Plasma Sintering
Ceramics, 2023 In this work, a transparent nanostructured ceramic magnesium aluminate spinel (MgAl2O4) was fabricated by Spark Plasma Sintering (SPS) from commercial spinel nano-powders at different temperatures (1300, 1350 and 1400 °C).
Khadidja Hoggas +6 more
doaj +1 more source
Ultra-depleted melts from Kamchatkan ophiolites : evidence for the interaction of the Hawaiian plume with an oceanic spreading center in the Cretaceous? [PDF]
, 2009 We report new data on the major and trace element composition of melt inclusions in spinel phenocrysts (Mg# = 0.7-0.8, Cr/(Cr + Al) = 0.32-0.52, TiO2 = 0.06-0.60 wt.%) from Cretaceous MORB-like basalt (La/Yb = 0.94, Th/Nb = 0.055, Th/La = 0.041) in the ...
Hoernle, Kaj +2 more
core +1 more source
Hydrogen production by methanol steam reforming on NiSn/MgO-Al 2O3 catalysts: The role of MgO addition [PDF]
, 2011 The effect of the magnesia loading on the surface structure and catalytic properties of NiSn/MgO-Al2O3 catalysts for hydrogen production by methanol steam reforming has been investigated. The catalysts have been obtained by impregnation of γ-Al2O3 by the
Bobadilla Baladrón, Luis Francisco +7 more
core +1 more source
Preparation and electrical properties of dense micro-cermets made of nickel ferrite and metallic copper [PDF]
, 2009 Dense micro-cermets made of nickel ferrites and copper micrometric particles were obtained from partial reduction under hydrogenated atmosphere at 350 C of mixed copper nickel ferrites, and sintering in nitrogen at 980 C.
Baco-Carles, Valérie +4 more
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Magnetic and semi-conducting nano-composite films of spinel ferrite and cubic zinc oxide [PDF]
, 2007 Magnetic and semi-conducting nano-composite films have been prepared under bias polarization, by radio-frequency sputtering of a pure zinc ferrite target.
Bonningue, Corine +4 more
core +4 more sources
Natural evidence for garnet-spinel transition (GST) in the Earth's mantle [PDF]
, 2008 This study based on compiled world-wide garnet peridotite data confirms the GST in high P and T conditions, which was obtained from Al-free experimental system (MgO-Cr~2~O~3~-SiO~2~) by Klemme (2004). A new spinel-phase peridotite zone, garnet peridotite
BenXun Su
core +3 more sources
Metals, 2021 Currently, surface treatments lead to inducing a superficial layer of several nanometers up to micrometer, which in some cases can be protective.
Mauro Andres Cerra Florez +7 more
doaj +1 more source
Electronic structure and physical properties of the spinel-type phase of BeP2N4 from all-electron density functional calculations [PDF]
, 2011 Using density-functional-theory-based ab initio methods, the electronic structure and physical properties of the newly synthesized nitride BeP2N4 with a phenakite-type structure and the predicted high-pressure spinel phase of BeP2N4 are studied in detail.
B. Delley +7 more
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