Enhanced Dielectric Properties of Ferroelectric Polymer Composites Induced by Metal-Semiconductor Zn-ZnO Core–Shell Structure

2012 ◽  
Vol 4 (1) ◽  
pp. 65-68 ◽  
Author(s):  
Ye Zhang ◽  
Yao Wang ◽  
Yuan Deng ◽  
Mao Li ◽  
Jinbo Bai
Keyword(s):  
Dielectric Properties ◽  
Polymer Composites ◽  
Shell Structure ◽  
Core Shell ◽  
Ferroelectric Polymer ◽  
Core Shell Structure

Co-Extrusion Technology for Functioned Nature Fiber Reinforced Polymer Composites

2013 ◽  
Vol 773 ◽  
pp. 497-501
Author(s):  
Run Zhou Huang ◽  
Cheng Jun Zhou ◽  
Yang Zhang ◽  
Qing Lin Wu
Keyword(s):  
Polymer Composites ◽  
Shell Structure ◽  
Critical Role ◽  
Core Shell ◽  
Green Composite ◽  
Reinforced Polymer ◽  
Fiber Reinforced Polymer Composites ◽  
Core Shell Structure ◽  
Extrusion Technology ◽  
New Generation

As a new-generation green composite, core-shell structure nature fibers/ polymer composites (NFPC) has been recently developed and used to enhance performance characteristics of composites. The shell layer, made of thermopolymers unfilled or filled with minerals or nature fibers and other additives, plays a critical role in enhancing overall composite properties. The co-extrusion technology for different structural and material combinations are, however, needed to achieve desired processing. In this paper, co-extrusion technology and core-shell structure NFPC have been discussed by systematically studying the effect of structure on properties of NFPC. The result of this paper can help provide a fundamental base for developing new functional applications of core-shell structure NFPCs.

Core-Shell Structure and Dielectric Properties of Ba0.991 Bi0.006 TiO3 @Nb2 O5 -Co3 O4 Ceramics

2016 ◽  
Vol 99 (5) ◽  
pp. 1664-1670 ◽  
Author(s):  
Yu Liu ◽  
Bin Cui ◽  
Yan Wang ◽  
Rong Ma ◽  
Mengqian Shangguan ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Shell Structure ◽  
Core Shell ◽  
Core Shell Structure

Microstructures and Highly Accelerated Lifetime Test of X5R Type BaTiO3-Based Ni-MLCC with Ultra-Thin Active Layers

2014 ◽  
Vol 602-603 ◽  
pp. 695-699
Author(s):  
Hui Ling Gong ◽  
Xiao Hui Wang ◽  
Shao Peng Zhang ◽  
Xin Ye Yang ◽  
Long Tu Li
Keyword(s):  
Dielectric Properties ◽  
Shell Structure ◽  
Casting Process ◽  
Thin Layers ◽  
Core Shell ◽  
Active Layers ◽  
Transmission Electron ◽  
Lifetime Test ◽  
Accelerated Lifetime ◽  
Core Shell Structure

Microstructure control in thin-layer multilayer ceramic capacitors (MLCCs) is one of the challenges for increasing capacitive volumetric efficiency and high voltage dielectric properties. In this paper, the X5R-MLCCs with ultra-thin dielectric layers (~1.2 μm) owning uniform grain size distribution were prepared by wet casting process. The microstructures and dielectric properties of the MLCCs were investigated. The existence of core-shell structure was proved by transmission electron microscopy observation and energy dispersive spectroscopy analysis. The existence of core-shell structure makes the temperature coefficient of capacitance (TCC) performance meet X5R standard. Moreover, a highly accelerated lifetime test (HALT) result shows that MLCCs with ultra-thin layers under high electric field are more easily to fail with increasing test temperatures. And the results reveal that the activation energy is similar to the value reported for mid-dielectric constant dielectrics.

Dielectric properties and impedance analysis of BaTiO 3 -based ceramics with core-shell structure

2017 ◽  
Vol 43 (11) ◽  
pp. 8449-8458 ◽  
Author(s):  
Weijin Chen ◽  
Hua Hao ◽  
Yang Yang ◽  
Cheng Chen ◽  
Millicent Appiah ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Shell Structure ◽  
Impedance Analysis ◽  
Core Shell ◽  
Core Shell Structure

Effect of Ho/Mg Ratio on Formation of Core-shell Structure in BaTiO3and on Dielectric Properties of BaTiO3Ceramics

2002 ◽  
Vol 41 (Part 1, No. 11B) ◽  
pp. 6934-6937 ◽  
Author(s):  
Andrei Kirianov ◽  
Tomoya Hagiwara ◽  
Hiroshi Kishi ◽  
Hitoshi Ohsato
Keyword(s):  
Dielectric Properties ◽  
Shell Structure ◽  
Core Shell ◽  
Core Shell Structure
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