Results 31 to 40 of about 176,693 (289)
, 2016 Vanadium (chemical symbol, V) is a d-block transition metal,silver in color, appearing in the first long period of the peri-odic table between titanium and chromium. Vanadium hastwo stable isotopes: 50V and 51V, with atomic abundance of0.25 % and 99.75 %, respectively. Vanadium has several oxidation forms (between 2+ and 5+).
Pourret, Olivier, Dia, Aline
openaire +3 more sources
Kuangchan zonghe liyongUsing carbon foam (CF) as supporting materials, paraffin (PW), palmitic acid (PA) and stearic acid (SA) as phase change main materials and Panzhihua vanadium tailings (VT) as thermal conductivity enhancer, vanadium tailings/carbon foam/organic composite ...
Zhong XU +5 more
doaj +1 more source
A novel method to prepare high-purity V2O5 from Na3VO4 solution
Journal of Materials Research and Technology, 2021 The current study presents a novel method to prepare high-purity V2O5 from Na3VO4 solution. This process characterizes Na3VO4 calcification separation, Ca10V6O25 ammoniation and solubilization, NH4VO3 crystallization, and vanadium precipitation, which ...
Lanjie Li +5 more
doaj +1 more source
Dissolution behavior of AlN in CaO–Al2O3–BaO–CaF2–Li2O system mold fluxes
Journal of Materials Research and Technology, 2023 The dissolution behavior of AlN in three CaO–Al2O3–BaO–CaF2–Li2O non-reactive mold fluxes which were designated as N1 (low break temperature), N2 (good lubrication performance), N3 (high break temperature) for high-Al steel with different requirements ...
Xufeng Wang +4 more
doaj +1 more source
Grain boundary ferromagnetism in vanadium-doped In$_2$O$_3$ thin films
, 2013 Room temperature ferromagnetism was observed in In$_2$O$_3 thin films doped with 5 at.% vanadium, prepared by pulsed laser deposition at substrate temperatures ranging from 300 to 600 $\,^{\circ}{\rm C}$.
Blythe, Harry J +6 more
core +1 more source
Selective nitrogen adsorption via backbonding in a metal-organic framework with exposed vanadium sites. [PDF]
, 2020 Industrial processes prominently feature π-acidic gases, and an adsorbent capable of selectively interacting with these molecules could enable important chemical separations1-4.
Colombo, Valentina +12 more
core +3 more sources
Optimization of Sulfur Determination in Vanadium-Titanium Magnetite Ore in the Panxi Area
Yankuang ceshiSulfur is an important quality and environmental indicator in vanadium-titanium magnetite ore, so the accurate measurement of sulfur is of great significance for subsequent process control and pollution evaluation.
Yong WANG, Zijing LI, Lin LIU, Guowei LI
doaj +1 more source
Kuangchan zonghe liyong, 2023 This is a paper in the field of mineral processing engineering. Iron separation experiments of the untabulated ore of Yangtianwo and the untabulated ore of Tianjiacun were carried out by comparing the untabulated ore of Baima in Panxi.Results show that ...
Fulin Zheng +4 more
doaj +1 more source
Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V
Advanced Engineering Materials, EarlyView.Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena +2 more
wiley +1 more source
Electrodynamics of the vanadium oxides VO2 and V2O3
, 2008 The optical/infrared properties of films of vanadium dioxide (VO2) and vanadium sesquioxide (V2O3) have been investigated via ellipsometry and near-normal incidence reflectance measurements from far infrared to ultraviolet frequencies.
A. A. Schafgans +12 more
core +1 more source