"2"^^ . "Ma\u0161l\u00E1\u0148, Miroslav" . "36;40" . "Preparation and properties of alpha-Fe and Fe3O4 nanocrystals in MgO and TiO2 Matrices" . . "Preparation of the nanocrystalline composites of iron and magnetite nanoparticles embedded in MgO or TiO2 matrices is described. The results of phase analysis obtained by means of M\u00F6ssbauer spectroscopy, X-ray diffraction, TEM and magnetic measurements are reported. Coercive force of the samples of the composite formed by spherical Fe3O4 (mean size -20 nm) nanoparticles was 25\u00B11 mT and for alpha-Fe (-30nm) it was 30\u00B11 mT. These values were not influenced by the chemical difference of the matrix materials."@en . "[2215F85F6935]" . . "RIV/68081723:_____/04:00000424" . "581531" . . . "5"^^ . . . . . "Preparation and properties of alpha-Fe and Fe3O4 nanocrystals in MgO and TiO2 Matrices"@en . "Vysok\u00E9 u\u010Den\u00ED technick\u00E9 v Brn\u011B" . "V pr\u00E1ci je popisov\u00E1na p\u0159\u00EDprava nanokrystalick\u00E9ho kompozitu \u010D\u00E1stic \u017Eeleza a magnetitu v matric\u00EDch MgO a TiO2. Jsou zde pops\u00E1ny v\u00FDsledky f\u00E1zov\u00E9 anal\u00FDzy z\u00EDskan\u00E9 pomoc\u00ED M\u00F6ssbauerovy spektroskopie, rtg. difrakce, TEM a magnetick\u00FDch m\u011B\u0159en\u00ED. Koercitivn\u00ED s\u00EDla vzorku tvo\u0159en\u00E9ho kulov\u00FDmi \u010D\u00E1sticemi Fe3O4 (o pr\u016Fm\u011Brn\u00E9 velikosti ~20 nm) 25\u00B11 mT a pro alpha-Fe (~30nm) 30\u00B11 mT. Ttyto hodnoty nebyly ovlivn\u011Bny rozd\u00EDln\u00FDm chemick\u00FDm slo\u017Een\u00EDm matrice."@cs . "Preparation and properties of alpha-Fe and Fe3O4 nanocrystals in MgO and TiO2 Matrices" . "Piz\u00FArov\u00E1, Nad\u011B\u017Eda" . "P\u0159\u00EDprava a vlastnosti nanokrystal\u016F alpha-Fe and Fe3O4 v matric\u00EDch MgO a TiO2"@cs . "Brno" . . "Qiao, Yuanyuan" . "Brno" . . "Zbo\u0159il, Radek" . "Preparation of the nanocrystalline composites of iron and magnetite nanoparticles embedded in MgO or TiO2 matrices is described. The results of phase analysis obtained by means of M\u00F6ssbauer spectroscopy, X-ray diffraction, TEM and magnetic measurements are reported. Coercive force of the samples of the composite formed by spherical Fe3O4 (mean size -20 nm) nanoparticles was 25\u00B11 mT and for alpha-Fe (-30nm) it was 30\u00B11 mT. These values were not influenced by the chemical difference of the matrix materials." . . "Nanocrystalline materials;composite;magnetic properties"@en . . "P\u0159\u00EDprava a vlastnosti nanokrystal\u016F alpha-Fe and Fe3O4 v matric\u00EDch MgO a TiO2"@cs . "Proceedings of the International Conference NANO'04" . . . "267"^^ . "Schneeweiss, Old\u0159ich" . . . . . . "2004-10-13+02:00"^^ . "P(ME 635), Z(AV0Z2041904)" . "Preparation and properties of alpha-Fe and Fe3O4 nanocrystals in MgO and TiO2 Matrices"@en . "RIV/68081723:_____/04:00000424!RIV/2005/MSM/A07005/N" . "80-214-2793-0" .