Papers by Author: Bogdan F. Palosz

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Authors: H. Marciniak, Stanislaw Gierlotka, Bogdan F. Palosz
Authors: Stanislaw Gierlotka, Andrzej Gregorczyk, Bogdan F. Palosz, Ewa Grzanka, Piotr Biczyk, Ulrich Bismayer
Authors: Bogdan F. Palosz, Ewa Grzanka, Svetlana Stelmakh, Stanislaw Gierlotka, Roman Pielaszek, Ulrich Bismayer, H.-P. Weber, Th. Proffen, W. Palosz
Authors: Bogdan F. Palosz, Stanislaw Gierlotka, Ewa Grzanka, K. Akimow, Roman Pielaszek, Piotr Biczyk, A. Grzegorczyk, Svetlana Stelmakh, Ulrich Bismayer, J.F. Janik
Authors: Bogdan F. Palosz, Svetlana Stelmakh, Stanislaw Gierlotka, M. Aloszyna, Roman Pielaszek, P. Zinn, Th. Peun, Ulrich Bismayer, D.G. Keil
Authors: Roman Pielaszek, Svetlana Stelmakh, Stanislaw Gierlotka, Bogdan F. Palosz, Dirk Kurtenbach, Ulrich Bismayer
Authors: Grzegorz Kalisz, Ewa Grzanka, Dariusz Wasik, Anna Swiderska-Sroda, Stanislaw Gierlotka, Jolanta Borysiuk, Maria Kaminska, Andrzej Twardowski, Bogdan F. Palosz
Abstract: Nano-composites consisting of a primary matrix phase of hard nanocrystalline SiC and a secondary nanocrystalline GaAs semiconductor phase were obtained by high-pressure zone infiltration. The synthesis occurs in three stages: (i) at room- temperature the SiC nanopowder is compacted under high pressure to 8 GPa, (ii) the temperature is increased to 1240°C, above the melting point of GaAs, and the pores were filled with liquid, (iii) on cooling GaAs nanocrystallites grow in the pores. The synthesis was performed using a toroid-type high-pressure apparatus (IHPP PAS, Warsaw) and a six anvil cubic press (MAX80 at HASYLAB, Hamburg). X-ray diffraction studies were performed with a laboratory D5000 Siemens diffractometer. The phase compositionn, grain size and macrostrains in the synthesized materials were examined. The microstructure of the composites was characterized using a Scanning Electron Microscopy (SEM), and High Resolution Transmission Electron Microscopy (TEM). Far-infrared reflectivity and Raman spectroscopy measurements were used to trace built-in strains.
Authors: Ulrich Bismayer, J. Shi, Arndt Klocke, Stanislaw Gierlotka, Bogdan F. Palosz
Authors: A.F. Gualtieri, Gilberto Artioli, M. Bellotto, S.M. Clark, Bogdan F. Palosz
Authors: J. Shi, Ulrich Bismayer, Arndt Klocke, Stanislaw Gierlotka, Bogdan F. Palosz
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