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The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics
(Elsevier, 2014)
Ferroelectric barium strontium titanate (Ba0.77Sr0.23TiO3), BST, was prepared by solid-state reactions using as the starting compounds powder of barium carbonate (BaCO3), strontium carbonate (SrCO3) and titanium dioxide ...
Korelacija funkcionalnih i fizičko-hemijskih svojstava prahova ZnO dobijenih različitim metodama sinteze
(Belgrade : University of Belgrade, Faculty of Physical Chemistry, 2014)
Poznato je da funkcionalna svojstva cink oksidnih prahova zavise od fizičko-hemijskih karakteristika kao što su optičke karakteristike i specifična površina, a koje su određene strukturnim svojstvima praha u kao što su: ...
Structural, morphological and up-converting luminescence characteristics of nanocrystalline Y2O3:Yb/Er powders obtained via spray pyrolysis
(Ceramics International, 2014)
Sub-micronic, spherical Y2O3:Yb/Er particles comprising clustered nano-units (70 nm) were prepared via ultrasonic spray pyrolysis from pure nitrate precursor solutions with different Yb/Er dopant ratios. The particles were ...
Structural and electrical properties of sintered Fe2O3/TiO2 nanopowder mixtures
(Elsevier, 2014)
Starting nanopowders of TiO2 (anatase 99.7%) and α-Fe2O3 (hematite) were mixed in the weight ratios 60:40 and 40:60. Green samples were sintered in the temperature range 750–1250 °C in air. Structural, morphological and ...
Distillation products of Stanley plum obtaining
(Vrnjačka Banja : Scientific and Technical Center for Intellectual Property, 2014)
The sort of plum used for distillation is Stanley picked in August 2013 in Gračac, Vrnjačka Banja, Serbia. 200 kg of ripe fruit was fermented with 40 dm3 of potable water. Wine was removed from the obtained product, and ...
Surfactants Assisted Hydrothermal Synthesis of NaYF4 co-doped Yb3+/Er3+ Up-conversion Nanoparticles
(Belgrade : Serbian Ceramic Society, 2014)
In the past few years there is a great interest for synthesis of the surface modified upconversion nanoparticles that can be used for biomedical application such as bio-detection, fluorescene imaging and drug delivery. ...
Synthesis of LiFePO4 by mechanical stressing and thermal annealing
(Belgrade : Materials Research Society of Serbia, 2014)
Mechanical activation can be regarded as a multi-step process with changes in the energetic parameters and the amount of accumulated energy of solids in each step. Here we report the influence of mechanochemical processing ...
Assessment of intensive grinding effects on alumina as refractory compound: Acceleration of γ to α phase transformation mechanism
(Elsevier, 2014)
In this study, the feasibility of alumina phase transition enhancement by mechanical activation was conducted. It was showed that the milling environment plays an important role on the physical, chemical and thermal behavior ...
Synthesis and characterization of Cu-ZrB2 alloy produced by PM techniques
(Belgrade : International Institute for the Science of Sintering, 2014)
The copper alloy with 7vol.% ZrB2 examined in this study was consolidated via powder metallurgy processing (PM) by combining mechanical alloying and hot pressing process. Structural changes, morphological properties and ...
Synthesis and morpho-structural characterization of nanostructured magnesium hydroxide obtained by a hydrothermal method
(Elsevier, 2014)
Controlled magnesium hydroxide particles were successfully synthesized via a simple hydrothermal method. The influence of temperature and reaction time on the hydrothermal synthesis of Mg(OH)(2) was studied. The results ...