National Repository of Grey Literature 12 records found  1 - 10next  jump to record: Search took 0.00 seconds. 
Tvorba oxidických filmů a nanočástic na substrátech Fe-Si
Lashin, Abdel Rahman ; Schneeweiss, Oldřich ; Sajdl, P.
A surface layer in depth 1 nm to 300 nm on Fe94Si6 alloy samples was investigated. Phase composition of the surfaces of samples annealed in vacuum, oxygen, and argon atmospheres was analysed by using x-ray photoelectron spectroscopy (XPS) and Mossbauer spectroscopy.
Systém nanokrystalů Fe-Zr s použitím prekurzorů ZrH2 a oxidů železa
Roupcová, Pavla ; Schneeweiss, Oldřich
Iron and magnetite nanoparticles in zirconium oxide matrix have been prepared by heat treatment of a mixture of nanocrystalline iron oxide and zirconium hydride powders.
Magneticky měkké nanokrystalické slitiny Fe-Ni a Fe-Co
Schneeweiss, Oldřich ; David, Bohumil ; Pizúrová, Naděžda ; Zbořil, R. ; Heřmánek, M. ; Mašláň, M.
We describe preparation and properties of nanocrystalline Ni75Fe25 and Fe50Co50 alloys by calcination of mixtures of Fe, Co, and Ni oxalates. The samples contain according to XRD single Ni3Fe or FeCo phases with grain size about 40 and 45 nm, respectively.
Pozorování nevodivých nano-struktur v rastrovacím elektronovém mikroskopu
Wandrol, Petr ; Mika, Filip
This paper deals with the observation of the non-conductive samples in the scanning electron microscope by the method of the critical energy finding by the cathode lens system and by the low energy backscattered electron detector. Both methods are described in detail and their advantages are shown by imaging of various non-conductive samples.
Fotoaktivní transparentní nanočástice TiO2 vestavěná v tenkých vrstvách
Štengl, Václav ; Bakardjieva, Snejana ; Murafa, Nataliya ; Šubrt, Jan
Photoactive optically transparent titania nanoparticles incorporated in this layers.
Příprava a fotokatalytická aktivita La dopovaná TiO2 nanočásticemi
Daněk, Ondřej ; Štengl, Václav ; Bakardjieva, Snejana ; Murafa, Nataliya ; Kalendová, A.
As-prepared TiO2 sample with 1 percent concentration of La is demonstrated the better photocatalytic activity than the Degussa P25.
Homogenní srážení jako efektivní syntetický způsob jak sjednotit nanočástice kysličníku kovu
Šubrt, Jan
Importace of nanoparticles with controlled size and shape of various chemical compositions increased markedly during last yers.
Příprava nanoscop. kysličníku kovu sonolysou M(acac)3complexů
Pinkas, J. ; Zbořil, R. ; Reichlová, V. ; Ostrižek, P. ; Bezdička, Petr
The presence of water in the reaction mixture was found to lower the organics content and increase the BET surface area.
FF6.2/SiO2 nanokompozity: synteza a magnetické vlastnosti
Vejpravová, J. ; Korňak, R. ; Nižňanský, D. ; Plocek, Jiří ; Haimann, K. ; Bukowaska, E. ; Maruzsewski, K.
We report on synthesis and behavior of the nanocomposites prepared by the modified Stober method using electromagnetic compatibility (EMC) compound FF6.2 as the magnetic ion-containing precursor.

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