Results 21 to 30 of about 36,759 (293)
Kinetics of vanadium carbonitride precipitation in steel: A computer model [PDF]
We have constructed a computer model of the precipitation kinetics of vanadium carbonitride in steel that takes into account the composition evolution of the precipitates with time.
Gouné, Mohamed, Maugis, Philippe
core +1 more source
RF and Surface Properties of Superconducting Samples [PDF]
The surface resistance Rs of superconducting cavities can be obtained from the unloaded quality factor Q0. Since Rs varies strongly over the cavity surface its value must be interpreted as averaged over the whole cavity surface.
Weingarten, W. +3 more
core +3 more sources
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
HRB500E seismic steel bars are mainly used in high-rise buildings near the seismic zone. The influence of different niobium contents (0–0.023%) on the microstructure and mechanical properties of HRB500E seismic reinforcement was studied.
Huang Sheng +7 more
doaj +1 more source
Niobium uptake and release by bacterial ferric ion binding protein [PDF]
Ferric ion binding proteins (Fbps) transport FeIII across the periplasm and are vital for the virulence of many Gram negative bacteria. Iron(III) is tightly bound in a hinged binding cleft with octahedral coordination geometry involving binding to ...
Dominic Campopiano +12 more
core +1 more source
Progress of Niobium and Tantalum Analytical Technology
As strategic emerging mineral resources supported by the state, niobium and tantalum are the functional and structural materials needed for the development of emerging industries.
LI Gang +5 more
doaj +1 more source
Preparation of Ni–MgO core-shell nano powders
Nickel nanopowders coated by magnesium oxide used for inner electrode of multilayer ceramic capacitor (MLCC) were prepared by coating thermal decomposition sintering method.
GUO Shun +4 more
doaj +1 more source
Separation and Selective Transport of Zirconium (IV) and Niobium (V) from Hydrochloric Media Through a Bulk Liquid Membrane [PDF]
The separation of zirconium and niobium from lanthanides in hydrochloric medium and the selective transport of them via bulk liquid membrane (BLM) was examined.
S A. Milani, A Charkhi, S Eshghi
doaj +1 more source
Removal of mechanical additives from the surface of cast niobium; pp. 241–246 [PDF]
A combined method of the utilization of deposits from the shaft furnace of niobium production consisting of the stages of thermomechanical treatment, hydrogenation, grinding, and separation was elaborated in industrial conditions.
Valeri Gorkunov +2 more
doaj +1 more source
Extraction of Niobium from ore deposits in KPK, Pakistan
The extraction of Niobium through different extraction processes is reviewed in this paper. On the commercial scale the solvent extractants have been employed for the extraction of Niobium in the presence of hydrogen fluoride.
Muhammad Irfan +2 more
doaj +1 more source

