Results 31 to 40 of about 174,552 (292)

Investigation on Heat Storage Characteristics of Vanadium Tailings/Carbon Foam/Organic Matter Composite Phase Change Materials

open access: yesKuangchan zonghe liyong
Using 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

open access: yesJournal 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

Magnetic properties of vanadium-oxide nanotubes probed by static magnetization and {51}V NMR

open access: yes, 2006
Measurements of the static magnetic susceptibility and of the nuclear magnetic resonance of multiwalled vanadium-oxide nanotubes are reported. In this nanoscale magnet the structural low-dimensionality and mixed valency of vanadium ions yield a complex ...
B. Büchner   +8 more
core   +1 more source

The magnetic and electronic structure of vanadyl pyrophosphate from density functional theory [PDF]

open access: yes, 2011
We have studied the magnetic structure of the high symmetry vanadyl pyrophosphate ((VO)_(2)P_(2)O)7, VOPO), focusing on the spin exchange couplings, using density functional theory (B3LYP) with the full three-dimensional periodicity. VOPO involves four
Cheng, Mu-Jeng   +3 more
core   +1 more source

Dissolution behavior of AlN in CaO–Al2O3–BaO–CaF2–Li2O system mold fluxes

open access: yesJournal 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

Optimization of Sulfur Determination in Vanadium-Titanium Magnetite Ore in the Panxi Area

open access: yesYankuang ceshi
Sulfur 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

Grain boundary ferromagnetism in vanadium-doped In$_2$O$_3$ thin films

open access: yes, 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

Explore on the Difference of Iron Separation between Tianjiacun and Yangtianwo Untabulated Ore in Baima, Panxi

open access: yesKuangchan 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

Electrodynamics of the vanadium oxides VO2 and V2O3

open access: yes, 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

The remarkable catalytic activity of the saturated metal organic framework V-MIL-47 in the cyclohexene oxidation [PDF]

open access: yes, 2010
The remarkable catalytic activity of the saturated metal organic framework MIL-47 in the epoxidation of cyclohexene is elucidated by means of both experimental results and theoretical ...
Leus, Karen   +6 more
core   +2 more sources

Home - About - Disclaimer - Privacy