Buscar
Mostrando ítems 1-10 de 49
Diffusion phenomena of the oxygen and nitrogen in niobium by mechanical spectroscopy
(2010-05-19)
The short-range diffusion phenomenon (Snoek Effect) was investigated by mechanical spectroscopy measurements between 300 K and 650 K, in a polycrystalline niobium sample, containing oxygen and nitrogen, using a torsion ...
Distribution of Relaxation Times: Debye Length Distribution vs Electrode Polarization by a Cole-Cole Relaxation Model
Mobility, diffusivity and charge density in polyelectrolytes, are generally determined from electrochemical impedance spectroscopy following the electrode polarization analysis, in which at a given temperature the peaks ...
Diffusion phenomena of the oxygen and nitrogen in niobium by mechanical spectroscopy
(2010-05-19)
The short-range diffusion phenomenon (Snoek Effect) was investigated by mechanical spectroscopy measurements between 300 K and 650 K, in a polycrystalline niobium sample, containing oxygen and nitrogen, using a torsion ...
Effect of interstitial impurities on internal friction measurements in niobium
(Elsevier B.V., 2004-04-15)
Measurements of internal friction as a function of temperature were carried out in samples of mobium containing different amounts of interstitial solutes (oxygen and nitrogen) and one sample of mobium containing initially ...
Effect of impurities on mechanical relaxation in niobium
(ABM, ABC, ABPol, 2003-12)
Measurements of internal friction as a function of temperature were performed in samples of Nb containing different amounts of substitutional (Zr) and interstitial (O, N) solutes. These data were resolved using the method ...
Control of crystallization kinetics and study of the thermal, structural and morphological properties of an Li2O–B2O3–Al2O3 vitreous system
(2012)
A glass matrix with nominal composition 50Li2O·45B2O3·5Al2O3 (mol%) was synthesized, and its physical properties were investigated by differential thermal analysis (DTA), X-ray diffraction (XRD), and atomic force microscopy ...
Effect of interstitial impurities on internal friction measurements in niobium
(Elsevier B.V., 2004-04-15)
Measurements of internal friction as a function of temperature were carried out in samples of mobium containing different amounts of interstitial solutes (oxygen and nitrogen) and one sample of mobium containing initially ...