Претраживање
Приказ резултата 31-40 од 64
The influence of the heat treatment on the structural and magnetic properties of nanoparticle La0.7Ca0.3MnO3 prepared by glycine-nitrate method
(Journal of Alloys and Compounds, 2010)
The influence of the heat treatment on the structural and magnetic properties of the nanoparticle La0.7Ca0.3MnO3 compound has been studied. The starting single-phase sample was prepared by the glycine nitrate method without ...
Synthesis, morphology, microstructure and magnetic properties of hematite submicron particles
(Journal of Alloys and Compounds, 2011)
We report on hydrothermal synthesis, plate-like morphology, microstructure and magnetic properties of hematite (alpha-Fe2O3) plate-like particles. The sample is obtained immediately after the hydrothermal process without ...
NiO core-shell nanostructure with ferromagnetic-like behavior at room temperature
(Journal of Alloys and Compounds, 2014)
We report on ferromagnetic-like magnetic properties, at room temperature, of spherical nickel oxide core-shell nanoparticles synthesized by sol-gel combustion method. The sample is characterized by using transmission ...
Thermal stability of Ce1-xBixO2-delta (x=0.1-0.5) solid solution
(Journal of Alloys and Compounds, 2013)
Single phase solid solution Ce1-xBixO2-delta with the composition of x = 0.1-0.5 were successfully synthesized at room temperature using simple and fast Self Propagating Room Temperature procedure (SPRT). Thermal stability ...
Structural, morphological and luminescence properties of nanocrystalline up-converting Y1.89Yb0.1Er0.01O3 phosphor particles synthesized through aerosol route
(Journal of Alloys and Compounds, 2013)
Nanocrystalline up-converting Y2O3:Yb3+, Er3+ phosphor particles were processed in a dispersed system-aerosol, generated ultrasonically at 1.3 MHz from common nitrate precursor solution having fixed ytterbium-to-erbium ...
Influence of MgO addition on the synthesis and electrical properties of sintered zinc-titanate ceramics
(Journal of Alloys and Compounds, 2009)
Starting mixtures of ZnO, TiO(2) and MgO (0, 1.25 and 2.5 wt.% MgO) powders were mechanically activated for 15 min in a planetary ball mill. The powders obtained were sintered non-isothermally to temperatures between 800 ...
Synthesis and characterization of the nanometric Pr-doped ceria
(Journal of Alloys and Compounds, 2010)
In this paper nanometric powders of solid solution of the host compound ceria (CeO(2)) with Pr dopant in the lattice were synthesized by self-propagating room temperature (SPRT) synthesis with composition (Ce(0.9)Pr(0.1) ...
Synthesis, morphology and microstructure of pomegranate-like hematite (alpha-Fe2O3) superstructure with high coercivity
(Journal of Alloys and Compounds, 2012)
We found novel and superior magnetic properties of the hematite (alpha-Fe2O3) that originate from an internal microstructure of particles and strong inter-particle interactions between nanocrystal sub-units. The hematite ...
Sol-gel synthesis and characterization of iron doped mullite
(Journal of Alloys and Compounds, 2014)
Amorphous powders of iron doped 3:2 mullite (3Al(2)O(3)center dot 2SiO(2)) were prepared by sol-gel combustion process using ethanol-water solutions of Al(III) nitrate, Fe(III) nitrate, TEOS and urea. Compositions up to ...
Characterization of rare-earth doped Lu2O3 nanopowders prepared with polymer complex solution synthesis
(Journal of Alloys and Compounds, 2010)
We explored a synthesis route based on the polymer complex solution method for the production of the rare-earth doped Lu2O3 crystalline nanopowders. In this type of synthesis polyethylene glycol is used both as fuel for ...