Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Gerhard Krexner"'
Autor:
Gerhard Krexner, Hartmut Abele
Publikováno v:
Neutron News. 31:11-12
(Photo Credit: Viktor Zdrachal)With much sadness we say farewell to Helmut Rauch, who passed away on September 2, 2019.Just a few months after celebrating Helmut’s 80th birthday in January, the Ato...
Publikováno v:
International Journal of Hydrogen Energy. 40:17144-17152
This paper reports long-term hydrogen storage experiments on MgH2 and on the Mg alloy ZK60 following prior Severe Plastic Deformation (SPD). Although SPD processing leads to significant enhancements of hydrogen absorption and desorption rates in both
Publikováno v:
Pollack Periodica. 9:111-118
Hydrogen due to its high incoherent cross section is a good candidate both for internal source or internal detector nucleus for atomic-resolution holographic measurements. Metal-hydrides are promising materials for the technology of hydrogen storage
Publikováno v:
Applied Mechanics and Materials. :93-97
Behavior of sodium metal subject to geometrical constraints has been studied at variable temperatures. A porous medium, Vycor glass of an average pore size of 9.2 nm, was loaded with Na by vacuum vaporization. Synchrotron X-ray powder diffraction of
Publikováno v:
Neutron News. 23:17-20
Owing to their wave properties, for most elementary particles including neutrons, almost all characteristic phenomena of wave optics have been successfully demonstrated – except for the concept of holographic imaging. The main difficulty hindering
Publikováno v:
Journal of Alloys and Compounds. 509:S449-S455
It is shown that hydrogen storage materials nanostructured by Severe Plastic Deformation (SPD) retaining the bulk shape are capable to meet or even exceed the adsorption/desorption kinetics of their ball milled counterpart. The grain size of commerci
Publikováno v:
Materials Science Forum. :427-432
Recent investigations on palladium hydride (Pd-H) showed, for the first time, evidence of formation of vacancy-hydrogen (Vac-H) clusters during Severe Plastic Deformation (SPD) effected by High Pressure Torsion (HPT). Vacancy concentrations produced
Publikováno v:
Scripta Materialia. 62:49-52
Samples of partially hydrogenated palladium were heavily deformed at low homologous temperatures by means of high-pressure torsion and subsequently investigated by differential scanning calorimetry along with scanning and transmission electron micros
Publikováno v:
Journal of Alloys and Compounds. :122-125
Neutron holography constitutes a novel technique to obtain structural information on an atomic scale. It is based on the recording of the interference pattern of neutron waves coherently scattered by atomic nuclei located on a crystal lattice with an
Publikováno v:
Journal of Physics: Condensed Matter. 17:S3173-S3178
This paper reports on the development of a cryostat for neutron small-angle scattering experiments on alkali metals under uniaxial compression in a temperature range from 5 K to room temperature. The investigation was motivated by earlier observation