Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Helmut Eckerlebe"'
Autor:
M. Kraje, N. A. Grigor’eva, Kirill S. Napolskii, Alexey V. Lukashin, A. A. Eliseev, S. V. Grigor’ev, Helmut Eckerlebe
Publikováno v:
Journal of Experimental and Theoretical Physics. 124:476-492
The structural and magnetic properties of the mesoporous systems based on silicon dioxide with a regular hexagonal arrangement of pores several microns in length and several nanometers in diameter, which are filled with iron compound nanofilaments in
Autor:
M. A. Ellabban, Jürgen Klepp, Martin Fally, Philipp K. Pranzas, Helmut Eckerlebe, Yasuo Tomita, Jinxin Guo
Publikováno v:
Holography: Advances and Modern Trends VI.
It is well known that in standard diffaction experiments only the amplitudes of structural Fourier components are recovered but phase information is lost. This problem is known as the ’phase problem’ in crystallography. In this contribution, we p
Autor:
Lukas Karge, Helmut Eckerlebe, Bruno Barbier, Pavel Strunz, Armin Kriele, Joachim Rösler, Michael Hofmann, Debashis Mukherji, Ralph Gilles, Premysl Beran
Publikováno v:
Journal of Applied Crystallography. 49:1253-1265
Co–Re alloys are being developed for ultra-high-temperature applications to supplement Ni-based superalloys in future gas turbines. The main goal of the alloy development is to increase the maximum service temperature of the alloy beyond 1473 K,i.e
Autor:
N. A. Grigoryeva, Helmut Eckerlebe, I. S. Shishkin, S. V. Grigoriev, A. A. Mistonov, I. S. Dubitskiy
Publikováno v:
Journal of Experimental and Theoretical Physics. 120:844-850
The magnetic properties of an inverse opal-like cobalt-based structure having the symmetry of the face-centered cubic lattice are studied. The magnetization reversal of the structure in a magnetic field applied along the [ $$1\overline 1 0$$ ] axis i
Autor:
Helmut Eckerlebe, Pavel Strunz, Lukas Karge, Peter Staron, Debashis Mukherji, Ralph Gilles, Th. Lippmann
Publikováno v:
Journal of Alloys and Compounds. 612:90-97
Characterization of the early stage precipitation is an important issue as it controls the emerging microstructure developed on Ni-based superalloys which are used as single crystal blades in gas turbines. The difficulty is that the gamma prime preci
Publikováno v:
Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques. 8:1027-1034
The results of studying the spin dynamics of a classical Fe65Ni35 invar alloy are presented and analyzed. The investigations are performed via small-angle polarized-neutron scattering in the oblique geometry of a magnetic field at various temperature
Autor:
I. V. Roslyakov, Helmut Eckerlebe, Sergey V. Grigoriev, A. P. Chumakov, N. A. Grigoryeva, A. A. Eliseev, Kirill S. Napolskii
Publikováno v:
Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques. 8:1010-1019
An experiment on small-angle polarized-neutron diffraction by a two-dimensional spatially ordered array of nickel nanowires embedded in a porous anodic alumina matrix is discussed. The contributions of nonmagnetic (nuclear) structures and nuclear mag
Autor:
Ivo Zizak, Lukas Karge, Pavel Strunz, Joachim Rösler, Gerhard Schumacher, Andreas Stark, László Szentmiklósi, Debashis Mukherji, Markus Hoelzel, Ralph Gilles, Michael Hofmann, Helmut Eckerlebe, Přemysl Beran, Zsuzsanna Macsik
Publikováno v:
Journal of Applied Crystallography. 47:1417-1430
Nickel-based superalloys are the materials of choice in the hot section of current gas turbines, but they are reaching temperature limits constrained by their melting temperature range. Co–Re alloy development was prompted by a search for new mater
Autor:
Helmut Eckerlebe
Publikováno v:
Поверхность. Рентгеновские, синхротронные и нейтронные исследования.. 2014:53-63
Обсуждается эксперимент по малоугловой дифракции поляризованных нейтронов на двумерном пространственно-упорядоченном массиве никеле
Autor:
A. I. Okorokov, Sergey V. Grigoriev, Andrei A. Eliseev, D. V. Belov, I. V. Roslyakov, Helmut Eckerlebe, A. P. Chumakov, Alexey V. Lukashin, Wim G. Bouwman, Kirill S. Napolskii
Publikováno v:
Nanotechnologies in Russia. 8:631-638
Three series of anodic alumina membranes have been studied using the small-angle diffraction of neutrons and synchrotron radiation. The samples are obtained by the oxidation of aluminum wafers by sulfuric and oxalic acids at various anodization volta