scholarly journals Heat-Resistant Ferroelectric-Polymer Nanocomposite with High Dielectric Constant

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1439 ◽  
Author(s):  
Nikolay Mukhin ◽  
Valentin Afanasjev ◽  
Irina Sokolova ◽  
Dmitry Chigirev ◽  
Rene Kastro ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Composite Material ◽  
High Dielectric Constant ◽  
Composite Coatings ◽  
Polymer Nanocomposite ◽  
Ferroelectric Ceramics ◽  
Frequency Spectra ◽  
Ferroelectric Polymer ◽  
Heat Resistant ◽  
High Dielectric

The high dielectric constant ferroelectric-polymer nanocomposite was developed for producing the heat-resistant and chemical stable planar layers. According to the composite coatings formation conditions, the following value ranges of dielectric constant and loss factor were received: 30–400 for dielectric constant and 0.04–0.1 for loss tangent, accordingly. Unlike of composite components, the obtained composite material is characterized by thermo-stability of electrical parameters up to 250 °C. The dielectric frequency spectra of the composite exhibit two clearly visible peaks in contrast to the spectra of the polymer and ferroelectric ceramics. The developed composite material can be used as a built-in film capacitors material in microelectronic devices.

Fluoro-polymer functionalized graphene for flexible ferroelectric polymer-based high-k nanocomposites with suppressed dielectric loss and low percolation threshold

Nanoscale ◽  
2014 ◽  
Vol 6 (24) ◽  
pp. 14740-14753 ◽  
Author(s):  
Ke Yang ◽  
Xingyi Huang ◽  
Lijun Fang ◽  
Jinliang He ◽  
Pingkai Jiang
Keyword(s):  
Dielectric Constant ◽  
Dielectric Loss ◽  
Percolation Threshold ◽  
High Dielectric Constant ◽  
Functionalized Graphene ◽  
Ferroelectric Polymer ◽  
Flexible Polymer ◽  
High K ◽  
High Dielectric

Fluoro-polymer functionalized graphene was synthesized for flexible polymer-based nanodielectrics. The resulting nanocomposites exhibit high dielectric constant, suppressed dielectric loss and low percolation threshold.

X7R type lead complex perovskite ferroelectric ceramics with high dielectric constant

1998 ◽  
Vol 13 (2) ◽  
pp. 253-256 ◽  
Author(s):  
Lijian Ruan ◽  
Longtu Li ◽  
Zhilun Gui
Keyword(s):  
Dielectric Constant ◽  
High Dielectric Constant ◽  
Temperature Stability ◽  
Ferroelectric Ceramics ◽  
Complex Perovskite ◽  
Two Phase ◽  
Dielectric Ceramics ◽  
High Dielectric ◽  
Lead Complex ◽  
Sintering Method

A new X7R type dielectric ceramics for the PMN-BT-PT system with a high dielectric constant (4832) and a low firing temperature (1100–1130 °C) was prepared by the mixed-sintering method. The results of XRD, SEM, EDAX, and dielectric measurements showed that the dielectric ceramics is a two-phase composite with the high dielectric constant originating from the ferroelectric relaxor, and the temperature stability of the dielectric properties from two-phase coexistence.

Electrocaloric properties of high dielectric constant ferroelectric ceramics

2007 ◽  
Vol 27 (13-15) ◽  
pp. 4021-4024 ◽  
Author(s):  
Gaël Sebald ◽  
Sébastien Pruvost ◽  
Laurence Seveyrat ◽  
Laurent Lebrun ◽  
Daniel Guyomar ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
High Dielectric Constant ◽  
Ferroelectric Ceramics ◽  
High Dielectric

scholarly journals Progress of heat resistant dielectric polymer nanocomposites with high dielectric constant

2018 ◽  
Vol 1 (2) ◽  
pp. 67-79 ◽  
Author(s):  
Ningning Zhu ◽  
Guozheng Liang ◽  
Li Yuan ◽  
Qingbao Guan ◽  
Aijuan Gu
Keyword(s):  
Dielectric Constant ◽  
Polymer Nanocomposites ◽  
High Dielectric Constant ◽  
Heat Resistant ◽  
High Dielectric ◽  
Dielectric Polymer

The Structures and Electronic Properties of Composite Material (LaxAl1-X)2O3 from First-Principles Study

2012 ◽  
Vol 583 ◽  
pp. 158-161
Author(s):  
Hui Yu Yan ◽  
Yan Rui Guo ◽  
Qing Gong Song
Keyword(s):  
Dielectric Constant ◽  
Composite Material ◽  
Band Gap ◽  
Electronic Properties ◽  
First Principles ◽  
Calculation Method ◽  
High Dielectric Constant ◽  
First Principles Calculation ◽  
Al Content ◽  
High Dielectric

The structures and electronic properties of (LaxAl1-x)2O3 are studied by first-principles calculation method. The results show that the composite material (LaxAl1-x)2O3 tend to be in sixfold-coordinated structure when x0.7. (LaxAl1-x)2O3 is in disorder structure and get the minimum band gap when x equals about 0.7. It suggest that (LaxAl1-x)2O3 can be synthesized as high dielectric constant material by doping La2O3 with a lower Al dopant concentrations or by fabricating (LaxAl1-x)2O3 with rich Al content.

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