scholarly journals History and challenges of barium titanate: Part I

2008 ◽  
Vol 40 (2) ◽  
pp. 155-165 ◽  
Author(s):  
M.M. Vijatovic ◽  
J.D. Bobic ◽  
B.D. Stojanovic
Keyword(s):  
Barium Titanate ◽  
Significant Influence ◽  
Review Paper ◽  
Piezoelectric Properties ◽  
Synthesis Method ◽  
Large Family ◽  
Ferroelectric Ceramics ◽  
Synthesis Methods ◽  
Structure And Properties ◽  
Ferroelectric And Piezoelectric Properties

Barium titanate is the first ferroelectric ceramics and a good candidate for a variety of applications due to its excellent dielectric, ferroelectric and piezoelectric properties. Barium titanate is a member of a large family of compounds with the general formula ABO3 called perovskites. Barium titanate can be prepared using different methods. The synthesis method depends on the desired characteristics for the end application. The used method has a significant influence on the structure and properties of barium titanate materials. In this review paper, Part I contains a study of the BaTiO3 structure and frequently used synthesis methods.

scholarly journals History and challenges of barium titanate: Part II

2008 ◽  
Vol 40 (3) ◽  
pp. 235-244 ◽  
Author(s):  
M.M. Vijatovic ◽  
J.D. Bobic ◽  
B.D. Stojanovic
Keyword(s):  
Barium Titanate ◽  
General Formula ◽  
Significant Influence ◽  
Review Paper ◽  
Piezoelectric Properties ◽  
Synthesis Method ◽  
Large Family ◽  
Ferroelectric Ceramics ◽  
Structure And Properties ◽  
Ferroelectric And Piezoelectric Properties

Barium titanate is the first ferroelectric ceramics and a good candidate for a variety of applications due to its excellent dielectric, ferroelectric and piezoelectric properties. Barium titanate is a member of a large family of compounds with the general formula ABO3 which is called perovskite. Barium titanate can be prepared using different methods. The synthesis method depends on the desired characteristics for the end application and the method used has a significant influence on the structure and properties of barium titanate materials. In this review paper, in Part II the properties of obtained materials and their application are presented.

Study on Ferroelectric and Dielectric Properties of Zr-Doped Sr2Bi4Ti5O18 Ceramics

2010 ◽  
Vol 105-106 ◽  
pp. 248-251 ◽  
Author(s):  
Ji Gong Hao ◽  
Zhi Jun Xu ◽  
Rui Qing Chu ◽  
Yan Jie Zhang ◽  
Qian Chen ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Electrical Properties ◽  
Single Phase ◽  
Piezoelectric Properties ◽  
Ferroelectric Ceramics ◽  
Sem Images ◽  
Ceramic Samples ◽  
Xrd Patterns ◽  
Curie Temperature Tc ◽  
Ferroelectric And Piezoelectric Properties

Zr-doped Sr2Bi4Ti5O18 (SBTi) bismuth layer-structured ferroelectric ceramics were prepared and studied. XRD patterns revealed that all the ceramic samples were single phase compounds. SEM images showed that dense microstructures with uniform gain size were obtained in all samples. The effects of Zr4+ doping on the dielectric, ferroelectric and piezoelectric properties of SBTi ceramics were also investigated. It was found that Zr4+ dopant gradually decreased the Curie temperature (Tc), enhanced the remnant polarization (2Pr) and decreased the coercive field (Ec) of SBTi ceramics. Furthermore, the piezoelectric properties of the SBTi ceramics were improved by enlarging the content of Zr. The SBTi ceramics with 4 mol% of Zr4+ dopant exhibited good electrical properties: d33 = 21 pC/N, 2Pr = 14.3 μC/cm2, Tc = 251°C, εr = 376, tanδ = 1.8%.

Magnetic Nanoparticles; Synthesis, Properties and Electrochemical Application: A Review

2020 ◽  
Vol 6 (2) ◽  
pp. 91-102 ◽  
Author(s):  
Maryam Roostaee ◽  
Iran Sheikhshoaie
Keyword(s):  
Magnetic Nanoparticles ◽  
Fe3o4 Nanoparticles ◽  
Electrochemical Sensors ◽  
Review Paper ◽  
Synthesis Method ◽  
Electrochemical Determination ◽  
Synthesis Methods ◽  
Electrochemical Application ◽  
Synthesis Properties

Background: The Fe3O4 nanoparticles have been highly regarded in recent years due to their unique properties and different applications. Magnetic separation capability of Fe3O4 nanoparticles provides an environmentally friendly procedure for the synthesis of this nanoparticle and its derivatives. Objective: There are many methods for synthesizing magnetic nanoparticles, and the properties of these nanoparticles are largely dependent on their synthesis method. Magnetite has many applications in various fields, one of the most important of which is the application of electrochemical sensors. These nanoparticles attached to the surface of different electrodes and used for the sensitive and selective electrochemical determination of trace amounts of several combinations. In this review paper, recently suggested synthesis methods of Fe3O4 and its derivatives and their electrochemical application are discussed.

scholarly journals An approach to analyzing synthesis, structure and properties of bismuth titanate ceramics

2005 ◽  
Vol 37 (3) ◽  
pp. 199-216 ◽  
Author(s):  
Z. Lazarevic ◽  
B.D. Stojanovic ◽  
J.A. Varela
Keyword(s):  
Bismuth Titanate ◽  
Electronic Materials ◽  
Synthesis Method ◽  
Film Coating ◽  
Synthesis Methods ◽  
Structure And Properties ◽  
Good Resistance ◽  
Structure Synthesis ◽  
The Family ◽  
Titanate Ceramics

The family of bismuth titanate, Bi4Ti3O12 (BIT) layered-structured ferroelectrics materials is attractive from the viewpoint of their application as electronic materials such as dielectrics, piezoelectrics and pyroelectrics, because they are characterized by good stability of piezoelectric properties, a high Curie temperature and a good resistance vs temperature. Bismuth titanate (Bi4Ti3O12) powders can be prepared using different methods, depending if the creation will be film coating or ceramics. The structure and properties of bismuth titanate materials show a significance dependence on the applied synthesis method. In this review paper, we made an attempt to give an approach to analyzing the structure, synthesis methods and properties of bismuth titanate ferroelectrics materials. .

scholarly journals ZnO and TiO2 Nanoparticles as Textile Protecting Agents against UV Radiation: A Review

2018 ◽  
Vol 2 (1) ◽  
Keyword(s):  
Tio2 Nanoparticles ◽  
Uv Radiation ◽  
Review Paper ◽  
Synthesis Method ◽  
Synthesis Methods ◽  
Application Process ◽  
Tio2 Nps ◽  
Nano Size ◽  
Zno And Tio2 Nanoparticles

The purpose of this review is to highlight the role of ZnO and TiO2 NPs as textile protective agents against UV radiation. Different synthesis method of ZnO and TiO2 NPs affecting their nano size and their ability to absorb UV radiation. Resulted ZnO or TiO2 NPs can be applied on treated or untreated fabrics individually to provide UV protection or in combination with other materials to provide multifunctional finished fabrics. Cons and Pros of each application process besides comparison of synthesis methods of ZnO and TiO2 NPs are included separately in this review paper.

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