Results 21 to 30 of about 249,243 (285)
Origin of colour zoning in cassiterites from tin deposits within the Bushveld Complex, South Africa [PDF]
Bulletin of the Geological Society of Finland, 1986 Cassiterites with striking colour zones from the syngenetic tin deposits at Zaaiplaats and from the epigenetic tin deposits at Rooiberg, Leeuwpoort and Union Mines, in the Central Transvaal, have been analysed by microprobe.
J.T. Ollila
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Oxide Films with Built-in Electric Charge for Regulation of Hemostasis Processes
Доклады Белорусского государственного университета информатики и радиоэлектроникиThe formation of films of valve metal oxides of the aluminum, zirconium, titanium, tantalum, niobium series with a thickness of about 100 nm by electrochemical anodization in an electrolyte based on a 1 % aqueous solution of citric acid is considered ...
S. K. Lazarouk +6 more
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Characterization and Catalytic Performance of Niobic Acid Dispersed over Titanium Silicalite
Advances in Materials Science and Engineering, 2008 Niobic acid, Nb2O5⋅nH2O, has been supported on the titanium silicalite by impregnation method. The obtained materials were characterized by X-ray diffraction, infrared, and ultra-violet—visible diffuse reflectance spectroscopy, temperature programmed ...
Didik Prasetyoko +3 more
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Niobium Oxide Nanostructures for Chemical Sensing
Procedia Engineering, 2014 Niobium oxide nanostructures were synthesized by hydrothermal method starting from niobium films deposited by RF magnetron sputtering on 2 × 2 mm2 alumina substrates. The samples were firstly treated with a KOH solution and with HNO3, and then annealed to obtain the Nb2O5 nanostructures.
BERTUNA, Angela +4 more
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Study of the Influence of Nb2O5 in ZnO Solar Cells
Orbital: The Electronic Journal of Chemistry, 2018 The solar cells of semiconductors oxides have been largely studied. The zinc oxide (ZnO) and niobium oxide (Nb2O5) used in this work presented important physical-chemical characteristics in use of photovoltaic devices.
Tatiana Lima Valerio +4 more
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Journal of Materials Research and TechnologyThis research presents a novel approach to beneficiate ferroniobium from Bayan Obo tailings (BOT) by combining selective carbonization roasting with magnetic separation.
Shaoyang Chang +6 more
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Chemoresistive Sensors for Cellular Type Discrimination Based on Their Exhalations
Nanomaterials, 2022 The detection of volatile organic compounds (VOCs) exhaled by human body fluids is a recent and promising method to reveal tumor formations. In this feasibility study, a patented device, based on nanostructured chemoresistive gas sensors, was employed to
Michele Astolfi +6 more
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Energetic Materials Frontiers, 2021 Among the energetic mixtures, one category are thermites. Thermites are highly reactive composites described as consisting of a fuel (metal) and an oxidizer (metal oxide) at micron scale.
Pierre Gibot +4 more
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Propriedade Microestrutural do Refinamento da Liga Amorfa Al54Nb45B7
Orbital: The Electronic Journal of Chemistry, 2016 The presence of niobium in the alloy creates regions of intermetallic phases contained in Al54Nb45B7 amorphous alloy which becomes a potent heterogeneous nucleation on the substrate for nucleation with dendritic presence of aluminum oxides due to ...
Luciano Nascimento +3 more
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Systematic improvements in transmon qubit coherence enabled by niobium surface encapsulation
npj Quantum InformationWe present a transmon qubit fabrication technique that yields systematic improvements in T 1 relaxation times. We encapsulate the surface of niobium and prevent the formation of its lossy surface oxide.
Mustafa Bal +39 more
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