Results 171 to 180 of about 31,615 (205)

Submicroscopic magnetite may be ubiquitous in the lunar regolith of the high-Ti region. [PDF]

Sci Adv
Cao Z, Guo Z, Li C, Zhao S, Li Y, He Q, Wen Y, Xiao Z, Li X, Xiao L, Li L, Wang J, Liu J.   +12 more
europepmc   +1 more source

Future geophysical techniques for probing beneath the regolith: Prospecting objectives [PDF]

Strangway, David W.
core   +1 more source

Connecting Meteorite Spectra to Lunar Surface Composition Using Hyperspectral Imaging and Machine Learning

Hesar FF, Raouf M, Chegeni A, Soltani P, Foing B, Chatzitheodoridis E, de Dood MJ, Verbeek FJ.   +7 more
europepmc   +1 more source

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Ferrorotational Selectivity in Ilmenites

Journal of the American Chemical Society, 2023
Unlike what happens in conventional ferroics, the ferrorotational (FR) domain manipulation and visualization in FR materials are nontrivial as they are invariant under both space-inversion and time-reversal operations. FR domains have recently been observed by using the linear electrogyration (EG) effect and X-ray diffraction (XRD) diffraction mapping.
Xiaochen Fang, Chandan De, Fei-Ting Huang, Xianghan Xu, Kai Du, Kefeng Wang, Bingqing Li, Sang-Wook Cheong   +7 more
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Ilmenite–CO reduction kinetics

Fuel, 2016
Abstract Secondary ilmenite is an inexpensive mineral that is a potential oxygen carrier for the chemical looping process. It has excellent mechanical stability, adequate heat capacity to transfer heat from the air reactor to the fuel reactor, and possesses a modest oxygen transfer capacity.
Patrice Perreault, Gregory-S. Patience
openaire   +1 more source

Reduction of Ilmenite and Ilmenite Ores

1973
In recent years there has been a rising interest in the solid state reduction of ilmenite ores. This interest is linked with the processes for the production of synthetic rutile which involve the selective reduction of the iron oxides present to the metallic state.
D. Poggi, G. G. Charette, M. Rigaud
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Ilmenite-rutile-iron and ulvospinel-ilmenite-iron equilibria and the thermochemistry of ilmenite (FeTiO3) and ulvospinel (Fe2TiO4)

Geochimica et Cosmochimica Acta, 1988
Abstract The ilmenite-rutile-ironequilibriaand ulvospinel-ilmenite-iron equilibria have been studied in the temperature range 990–1320 and 1050–1355 K, respectively, using an electrochemical technique. Effects on experimental results from deviations from the ideal stoichiometries FeTiO 3 , TiO 2 and Fe 2 TiO 4 have been modelled from available data
Hugh St.C O'Neill, Mark I Pownceby, Victor J Wall   +2 more
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Microwave-Absorbing of Carbothermic Reduced Products of Ilmenite and Oxidized Ilmenite

Journal of Microwave Power and Electromagnetic Energy, 2014
AbstractMicrowave-absorbing characteristics of carbothermic reduction products of ilmenite and oxidized ilmenite were investigated by the method of microwave cavity perturbation and XRD. Results show that there is a great change of microwave-absorbing characteristics of reduction product from oxidized ilmenite by microwave heating at temperatures of ...
Xinying Wang, Wei Li, Biao Yang, Shenghui Guo, Libo Zhang, Guo Chen, Jinhui Peng, Huilong Luo   +7 more
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Elasticity of ilmenites

Physics of the Earth and Planetary Interiors, 1976
Ultrasonic data for the velocities of the ilmenites MgTiO3 and CoTiO3 have been determined as a function of pressure to 7.5 kbar at room temperature for polycrystalline specimens hot-pressed in a piston-cylinder apparatus at pressures up to 30 kbar. Titanate and germanate ilmenites define divergent isostructural trends on a Birch diagram of bulk sound ...
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