Results 71 to 80 of about 92,344 (249)

Phase equilibrium relations in the binary system bismuth sesquioxide-niobium pentoxide

open access: yes, 1962
The phase equilibrium diagram for the binary system bismuth sesquioxide- niobium pentoxide has been constructed from observations of fusion characteristics and X-ray diffraction data.
Roth, R. S.; Waring, J. L.
core   +1 more source

High-Efficiency All-Dielectric Metasurfaces for the Generation and Detection of Focused Optical Vortex for the Ultraviolet Domain

open access: yesApplied Sciences, 2020
The optical vortex (OV) has drawn considerable attention owing to its tremendous advanced applications, such as optical communication, quantum entanglement, and on-chip detectors.
Ziheng Zhang   +4 more
doaj   +1 more source

Competitive Redox Chemistries in Vanadium Niobium Oxide for Ultrafast and Durable Lithium Storage

open access: yesNano-Micro Letters, 2023
Highlights The over-reduction from Nb5+ to Nb3+ in the lithiation process have been demonstrated to be the critical reason for the capacity decay of Nb2O5 for the first time.
Xiaobo Ding   +4 more
doaj   +1 more source

Development of an Extraction Process for Niobium Pentoxide from Columbite Using Sodium Carbonate and Boric Acid

open access: yesMinerals
The aim of this study was to initiate the development of a route for the extraction of niobium oxide from columbite ore using sodium carbonate and boric acid. Initially, the columbite ore was characterized. Eight formulations were prepared to investigate
R. Silveira   +9 more
semanticscholar   +1 more source

MXene Embedded Nanocomposites for Solar Energy Conversion and Water Splitting: Fundamentals, Improvement Strategies, and Future Directions

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 7, July 2026.
MXene‐embedded nanocomposites are emerging as versatile materials for solar energy conversion and photocatalytic water splitting. Their high conductivity, tunable surface chemistry, and efficient charge transfer properties enhance photovoltaic performance and hydrogen evolution.
Fiaz Hussain   +7 more
wiley   +1 more source

Phase equilibrium relations in the binary system barium oxide-niobium pentoxide

open access: yes, 1961
A large portion of the phase equilibrium diagram for the binary system barium oxide-niobium pentoxide has been constructed from observations of fusion characteristics and X-ray diffraction data. In the system five binary compounds were observed wIth BaO :
Roth, R. S.; Waring, J. L.
core   +1 more source

High Sensitivity Optical Sensor Based on Surface Plasmon Effect on Graphene for Detection of DMSO Concentrations [PDF]

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
In this study, a rib waveguide is used in the design of a plasmonic sensor. The structure consists of a dielectric substrate constituted of tantalum pentoxide (Ta2O5).
Gabriel A. Souto   +2 more
doaj   +1 more source

Marine Applications of Metal‐Modified FEVE Coatings on 6061 Aluminum Alloy for Enhanced Anti‐Corrosion and Anti‐Biofouling

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT This study developed a metal–modified fluoroethylene vinyl ether (FEVE) organic coating on 6061 aluminum alloy, supported by a micro‐arc oxidation (MAO) pretreatment layer, to enhance corrosion resistance and antifouling performance in marine environments.
Chang Liu   +5 more
wiley   +1 more source

Ytterbium-doped tantalum pentoxide waveguides: spectroscopy for compact waveguide lasers

open access: yes
Ytterbium-doped materials are common gain media in high-performance laser systems. In this work, the first spectroscopic investigation of ytterbium-doped tantalum pentoxide (Yb:Ta2O5) for compact waveguide laser applications is ...
Sessions, N.P.   +4 more
core   +1 more source

Reduction of niobium pentoxide by carbon [PDF]

open access: yes, 1961
The investigations of the reduction of niobium pentoxide by carbon showed that niobium metal could be prepared by a direct reduction. High temperatures in the region of 2000°C but below the melting point of niobium and dynamic vacuum of one micron or ...
Stevens, Ernest, Wilhelm, H.
core  

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