Control of the structure, morphology and dielectric properties of bismuth titanate ceramics by praseodymium substitution using an intermediate fuel agent-assisted self-combustion synthesis

2012 ◽  
Vol 47 (9) ◽  
pp. 4019-4027 ◽  
Author(s):  
Warapong Krengvirat ◽  
Srimala Sreekantan ◽  
M. N. Ahmad-Fauzi ◽  
Charoen Chinwanitcharoen ◽  
Go Kawamura ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Combustion Synthesis ◽  
Bismuth Titanate ◽  
Structure Morphology ◽  
Titanate Ceramics

scholarly journals Fuel-free low-temperature self-combustion synthesis and characterization of praseodymium-substituted bismuth titanate ceramics

2012 ◽  
Vol 120 (1398) ◽  
pp. 58-63 ◽  
Author(s):  
Warapong KRENGVIRAT ◽  
Srimala SREEKANTAN ◽  
Ahmad-Fauzi b. MOHD NOOR ◽  
Atsunori MATSUDA ◽  
Charoen CHINWANITCHAROEN
Keyword(s):  
Low Temperature ◽  
Combustion Synthesis ◽  
Bismuth Titanate ◽  
Synthesis And Characterization ◽  
Titanate Ceramics

Effect of Ce and La substitution on dielectric properties of bismuth titanate ceramics

2011 ◽  
Vol 37 (2) ◽  
pp. 487-492 ◽  
Author(s):  
Nikolina Pavlović ◽  
Vladimir Koval ◽  
Jan Dusza ◽  
Vladimir V. Srdić
Keyword(s):  
Dielectric Properties ◽  
Bismuth Titanate ◽  
La Substitution ◽  
Titanate Ceramics

Influences of compressive stress and aging on dielectric properties of sodium bismuth titanate ceramics

2009 ◽  
Vol 373 (17) ◽  
pp. 1583-1587 ◽  
Author(s):  
T. Sareein ◽  
M. Unruan ◽  
A. Ngamjarurojana ◽  
S. Jiansirisomboon ◽  
A. Watcharapasorn ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Compressive Stress ◽  
Bismuth Titanate ◽  
Sodium Bismuth Titanate ◽  
Titanate Ceramics

Single Step Combustion Synthesis for the Preparation of Bismuth Titanate Ceramics for Potential Applications

2012 ◽  
Vol 620 ◽  
pp. 429-434 ◽  
Author(s):  
Umar Al-Amani Azlan ◽  
Srimala Sreekantan ◽  
Ahmad Fauzi Mohd Noor ◽  
Khairunisak Abdul Razak
Keyword(s):  
Combustion Synthesis ◽  
Goodness Of Fit ◽  
Bismuth Titanate ◽  
Exothermic Peak ◽  
Single Step ◽  
Degree Of Crystallinity ◽  
Strong Interactions ◽  
Potential Applications ◽  
Hydrolysis Temperature ◽  
Titanate Ceramics

Bismuth titanate was systematically prepared by a single step combustion synthesis. Based on TG-DTA, the corresponding phase was completely obtained below 300°C, resulting in highly exothermic peak at 236°C. The formation of a single crystalline structure of Bi-layered with different degree of crystallinity was strongly affected by hydrolysis temperature. Goodness-of-fit indicator,Sfor entire samples was in the range of 1.55 1.94, which is acceptable for Rietveld refinement analysis. All Raman peaks became more intense and sharp with higher hydrolysis temperature, suggesting that the strong interactions between Ti-O bonding in BIT structure. The presence of peaks at 838 and 628 cm-1in the IR spectrum can be ascribed to the stretching vibrations of Bi-O and Ti-O, respectively. Besides, the obtained powders are very fine with minimal grain growth, resulting in agglomerated powders.

scholarly journals Structural, microstructural, electrical properties of lanthanum doped-bismuth titanate ceramics prepared by low temperature combustion synthesis

2017 ◽  
Vol 49 (2) ◽  
pp. 107-115 ◽  
Author(s):  
Azlan Al-Amani ◽  
Mohd Noor
Keyword(s):  
Grain Size ◽  
Electrical Properties ◽  
Low Temperature ◽  
Combustion Synthesis ◽  
Bismuth Titanate ◽  
Low Temperature Combustion ◽  
Orthorhombic Distortion ◽  
Temperature Combustion ◽  
The Difference ◽  
Titanate Ceramics

In this work, lanthanum doped-bismuth titanate with different contents were successfully prepared by low-temperature combustion synthesis, and subsequently, sintered at 1000 oC for 3 hours. Their structural, microstructural and electrical were systematically studied. It was found that the structural distortion of orthorhombic structure tends to transforms to a tetragonal with the increase in La content. This change is most probably due to relaxations of orthorhombic distortion and octahedral tilting because of the difference in the ionic radius of Bi3+ and La3+. Upon increasing of La content, the grain size remarkable decreases resulted in uniform grain size with better relative density. Thus, the electrical properties of La doping were greatly improved in comparison to pure sample.

Microwave Dielectric Properties of Lanthanide Titanate Ceramics

1993 ◽  
Vol 32 (Part 1, No. 9B) ◽  
pp. 4327-4331 ◽  
Author(s):  
Junichi Takahashi ◽  
Keisuke Kageyama ◽  
Kouhei Kodaira
Keyword(s):  
Dielectric Properties ◽  
Microwave Dielectric Properties ◽  
Microwave Dielectric ◽  
Titanate Ceramics
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