Synthesis and Characterization of Nanocrystalline Barium Strontium Titanate Ceramics

2008 ◽  
pp. 23-32
Author(s):  
Vikas Somani ◽  
Samar J. Kalita
Keyword(s):  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Synthesis And Characterization ◽  
Barium Strontium ◽  
Titanate Ceramics

scholarly journals Synthesis and characterization of nickel oxide doped barium strontium titanate ceramics

Cerâmica ◽  
2012 ◽  
Vol 58 (345) ◽  
pp. 99-104 ◽  
Author(s):  
M. Banerjee ◽  
S. Mukherjee ◽  
S. Maitra
Keyword(s):  
Nickel Oxide ◽  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Barium Carbonate ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
X Ray Diffraction ◽  
Barium Strontium ◽  
Titanate Ceramics

Barium strontium titanate (BST) ceramics (Ba0.6Sr0.4)TiO3 were synthesized by solid state sintering using barium carbonate, strontium carbonate and rutile as the precursor materials. The samples were doped with nickel oxide in different proportions. Different phases present in the sintered samples were determined from X-ray diffraction investigation and the distribution of different phases in the microstructure was assessed from scanning electron microscopy study. It was observed that the dielectric properties of BST were modified significantly with nickel oxide doping. These ceramics held promise for applications in tuned circuits.

scholarly journals Impedance spectroscopy and dielectric studies of nanocrystalline iron doped barium strontium titanate ceramics

2015 ◽  
Vol 9 (2) ◽  
pp. 73-79 ◽  
Author(s):  
Reenu Jacob ◽  
Harikrishnan Nair ◽  
Jayakumari Isac
Keyword(s):  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Research Attention ◽  
X Ray ◽  
Barium Strontium ◽  
Iron Doped ◽  
Different Temperatures ◽  
Nanocrystalline Iron ◽  
Titanate Ceramics

Barium titanate compounds have great research attention due to their good electric and in some case interesting magnetic properties. The synthesis and characterization of iron doped barium strontium titanate (BSFTO) make an attempt to understand its structure and investigate electric/dielectric properties. The formation of a perovskite compound with tetragonal phase was confirmed through X-ray structural studies. Dielectric and electrical impedance properties of the sintered BSFTO ceramics were measured in the frequency range from 42Hz to 2MHz and at different temperatures (up to 600?C). It was shown that the properties of this material are highly dependent on temperature and frequency. The nature of frequency dependence of AC conductivity confirms the Jonscher?s power law. The temperature dependence of DC conductivity obeys the Arrhenius behaviour.

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