Results 11 to 20 of about 80,438 (295)
Ab-initio calculations for structural properties of Zr-Nb alloys [PDF]
, 2013 Ab-initio calculations for the structural properties of Zr-Nb alloys at different values of the niobium concentration are done at zero temperature. Different cases for Zr-Nb alloys with unit cells having BCC and HCP structures are considered.
Kharchenko, Dmitrii O. +1 more
core +5 more sources
Alloy Formation by Electrodeposition of Niobium and Aluminium on Gold from Chloroaluminate Melts
International Journal of Electrochemical Science, 2017 Niobium and aluminium have been electrodeposited from inorganic chloroaluminate melts onto gold substrate at 473 K. The melts were prepared from an equimolar mixture of AlCl3+NaCl with niobium added by anodic dissolution.
Nataša M. Vukićević +4 more
doaj +1 more source
Manipulating the carrier concentration and phase transition via Nb content in SrTiO3
Scientific Reports, 2022 SrTiO3 is a model of the perovskite-like compounds for structural transition which inducing the intriguing physical properties around the critical phase transition temperature TAFD (antiferrodistortive, abbrev. as AFD). Here we report that the electrical
Zhe Zhang +6 more
doaj +1 more source
The oxidative coupling of methane and the oxidative dehydrogenation of ethane over a niobium promoted lithium doped magnesium oxide catalyst [PDF]
, 1993 The promoting effect of niobium in a Li/MgO catalyst for the oxidative coupling of methane (OCM) and for the oxidative dehydrogenation of ethane (ODHE) has been studied in some detail.
Li, X. +4 more
core +2 more sources
Main applications and characterization of world resources of niobium and progress in extraction [PDF]
E3S Web of ConferencesThis paper focuses on niobium applications in the steel industry, aerospace industry, electronics industry, superconducting alloys, medical and other fields.
Liu Ao, Su Wenrou, Wu Jie
doaj +1 more source
Diamond Magnetometry of Meissner Currents in a Superconducting Film [PDF]
, 2016 We study magnetic field penetration into a thin film made of a superconducting niobium. Imaging of magnetic field is performed by optically detecting magnetic resonances of negatively charged nitrogen-vacancy defects inside a single crystal diamond ...
Alfasi, Nir +4 more
core +1 more source
Mechanical and microstructural characterization of Nodular Cast Iron (NCI) with Niobium Additions [PDF]
Materials Research, 2014 Nodular cast irons (NCIs) involve the inoculation and nodulization of 0.03 to 0.06wt% Magnesium, as well as the addition of Molybdenum, Chromium, Nickel, Copper and Vanadium, although the presence of Niobium is not common.
Tânia Nogueira Fonseca Souza +4 more
doaj +1 more source
Фізика і хімія твердого тіла, 2017 The review summarizes data on the anodic behavior of niobium in aqueous solutions. Features of electrochemical formation nanostructured oxide coatings on niobium by anodic oxidation are systematized.
B. I. Вayrachniy, I. A. Tokareva
doaj +1 more source
THE DETERMINATION OF NIOBIUM IN URANIUM NIOBIUM ALLOYS [PDF]
, 1958 The niobium-uranium alloy is dissolved in hydrofluoric nitric acids and the fluoride removed by fuming sulfuric acid. The niobium is hydrolyzed in an acid-sulfur dioxide medium and converted to niobic oxide by ignition at 900 deg C. The method covers the determination of niobium in niobium-uranium alloys having a niobium content of 8 to 12%.
Goward, G. W. +2 more
openaire +2 more sources