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Crystal structure of Ce-doped CaMnO3 perovskite
(Ceramics International, 2009)
The synthesis and crystal structure of Ce-doped CaMnO3 perovskite has been investigated. Two powders with nominal compositions Ca0.5Ce0.5MnO3 and CaMn0.5Ce0.5O3 were prepared using a modified glycine/nitrate procedure. The ...
Investigation of the structure and the magnetic behavior of nanostructure Ca1-xGdxMnO3 (x=0.05; 0.1; 0.15; 0.2) obtained by modified glycine nitrate procedure
(Ceramics International, 2013)
The synthesis, crystal structure and magnetic properties of Ca1-xGdxMnO3 (x = 0.05; 0.1; 0.15; 0.2) perovskite has been investigated. Powders with nominal compositions Ca0.95Gd0.05MnO3, Ca0.9Gd0.9MnO3, Ca0.85Gd0.15MnO3 and ...
Synthesis, calcination and characterization of Nanosized ceria powders by self-propagating room temperature method
(Ceramics International, 2013)
Nanometric ceria powders with fluorite-type structure were obtained by applying self-propagating room temperature method. The obtained powders were subsequently thermally treated (calcined) at different temperatures for ...
Structure and luminescence properties of Eu3+ doped TiO2 nanocrystals and prolate nanospheroids synthesized by the hydrothermal processing
(Ceramics International, 2012)
We report on a new approach to the synthesis of Eu3+ doped TiO2 nanocrystals and prolate nanospheroids. They were synthesized by shape transformation of hydrothermally treated titania nanotubes at different pH and in the ...
Modified self-propagating high-temperature synthesis of nanosized La0.7Ca0.3MnO3
(Ceramics International, 2013)
A modified solid-state combustion route was developed for the preparation of nanocrystalline manganite La0.7Ca0.3MnO3 in a single-step process, using metal nitrates and glucose/KNO3 redox mixture. The obtained sample was ...
Synthesis and characterization of Pr6O11 nanopowders
(Ceramics International, 2013)
Amorphous Pr6O11 powder was obtained by applying self-propagating room temperature method (SPRT). After calcination, the amorphous powder converted to nanometric Pr6O11 powder with cubic fluorite-type structure. Powder ...
Structural, morphological and electrical properties of Ce1-xRuxO2-delta (x=0.005-0.02) solid solutions
(Ceramics International, 2016)
Nanoparticles of ceria ruthenium oxide solid solutions with composition Ce1-xRuxO2-delta (X=0.005-0.02) were successfully produced by self propagating room temperature synthesis using reaction between metal nitrates and ...
Isothermal sintering of barium-zinc-titanate ceramics
(Ceramics International, 2011)
Mixtures of BaCO(3)-ZnO-TiO(2) were mechanically activated using high-energy planetary ball mill during 20, 40 and 80 min. As the time of mechanical activation increased, the decrease in particle size was observed. The ...
Synthesis and characterization of hafnium carbide fine powders
(Ceramics International, 2013)
Hafnium carbide powder was synthesized by sol-gel polycondensation of hafnium chloride with citric acid. The starting materials were dissolved in water and mixed homogeneously on a hot plate until precursor gel was formed. ...
Effects of sintering on the structural, micro structural and magnetic properties of nanoparticle manganite Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2)
(Ceramics International, 2015)
Nanocrystalline manganites Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, and 0.2) were synthesized by a modified glycine-nitrate procedure and subjected to a systematic investigation regarding the effects of calcination and sintering ...