Zobrazeno 1 - 10
of 45
pro vyhledávání: '"K. Pranzas"'
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:
Gennady P. Kopitsa, Sergey V. Grigoriev, A. Ye. Baranchikov, Olga S. Ivanova, Vladimir Ivanov, K. Pranzas
Publikováno v:
Journal of Physics and Chemistry of Solids. 75:296-299
We present experimental evidence of complete fractal properties inheritance in the course of first-order phase transition from amorphous to monoclinic or tetragonal zirconia under hydrothermal conditions. This phenomenon takes place either under rapi
Autor:
Sergey V. Grigoriev, A. Ye. Baranchikov, K. Pranzas, Gennady P. Kopitsa, M. Sharp, Vladimir Ivanov
Publikováno v:
Russian Journal of Inorganic Chemistry. 54:2091-2106
By use of small angle and ultra small angle neutron scattering techniques it was established that amorphous xerogels of hydrous zirconia and hafnia possess fractal properties in a wide range of scales, and the fractal dimension of these materials can
Autor:
Vladimir Ivanov, Gennady P. Kopitsa, V. V. Runov, O. S. Polezhaeva, Pavel P. Fedorov, K. Pranzas
Publikováno v:
Russian Journal of Inorganic Chemistry. 54:1689-1696
Particle coarsening trends at high temperatures (200 to 700 °C) in CeO2 nanoparticles having various chemical histories are determined by powder X-ray diffraction (XRD), low-temperature nitrogen adsorption, transmission electron microscopy, and smal
Publikováno v:
Applied Physics A. 88:277-284
The Ni3Si-type nanoparticles dispersed in a mixture of H2O/D2O were characterised by SANS using the contrast variation method. The existence of a core-shell structure in the nanoparticles with a Ni3Si(Al) core and amorphous SiOx shell is confirmed by
Publikováno v:
Superlattices and Microstructures. 41:190-195
Three block copolymers offer a model system for the study of crystallization as they aggregate in aqueous solutions and for high concentrations into micelles, which crystallize as a critical volume fraction is reached. Neutron reflectivity and grazin
Autor:
J. M. Cadogan, C. Vecchini, Kiyonori Suzuki, Andreas Michels, O. Moze, K Pranzas, Jörg Weissmüller
Publikováno v:
Journal of Alloys and Compounds. 423:31-36
The technique of SANS (small angle neutron scattering) furnishes unique information on the characteristic magnetic length scales and local magnetic anisotropies at the nanoscale in nanocomposite ferromagnets. Such information is not presently availab
Autor:
A. I. Okorokov, A. Schreyer, S. V. Grigor’ev, K. Pranzas, Helmut Eckerlebe, D. Yu. Chernyshev, Yu. O. Chetverikov
Publikováno v:
JETP Letters. 83:478-482
The magnetic spiral structure of a Y/Dy sample has been investigated for temperatures from 30 to 190 K by the method of the small-angle scattering of polarized neutrons. The sample is a sequence of layers Y50nm [Dy4.3nm /Y2.8nm ]350/Y234nm /Nd200nm A