Remarkably improving dielectric response of polymer/hybrid ceramic composites based on 0D/2D-stacked CuO/V2C MXene heterojunction

2021 ◽  
Vol 545 ◽  
pp. 149008
Author(s):  
Qihuang Deng ◽  
Furong Zhou ◽  
Maolin Bo ◽  
Yefeng Feng ◽  
Yuehao Huang ◽  
...  
Keyword(s):  
Dielectric Response ◽  
Ceramic Composites ◽  
Polymer Hybrid ◽  
Hybrid Ceramic

Response Surface Modeling and Optimization of Gelcast Fused Silica Micro Hybrid Ceramic Composites

Silicon ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1513-1528 ◽  
Author(s):  
Gurabvaiah Punugupati ◽  
P. S. C. Bose ◽  
G. Raghavendra ◽  
C. S. P. Rao
Keyword(s):  
Response Surface ◽  
Ceramic Composites ◽  
Surface Modeling ◽  
Fused Silica ◽  
Response Surface Modeling ◽  
Modeling And Optimization ◽  
Hybrid Ceramic

Processing of laminated hybrid ceramic composites

1998 ◽  
Vol 29 (2) ◽  
pp. 189-194 ◽  
Author(s):  
M.M. Sharma ◽  
M.F. Amateau
Keyword(s):  
Ceramic Composites ◽  
Hybrid Ceramic

scholarly journals Broadband dielectric response of AlN ceramic composites

2014 ◽  
Vol 8 (1) ◽  
pp. 47-51 ◽  
Author(s):  
Iryna Brodnikovska ◽  
Andriy Deriy ◽  
Vitaly Petrovsky
Keyword(s):  
Dielectric Loss ◽  
Loss Tangent ◽  
Dielectric Loss Tangent ◽  
Dielectric Response ◽  
Sintering Temperature ◽  
Dielectric Permeability ◽  
Ceramic Composites ◽  
Substrate Material ◽  
Nondestructive Method ◽  
Broadband Dielectric Spectroscopy

Aluminium nitride (AlN) is considered as a substrate material for microelectronic applications. AlN ceramic composites with different amount of TiO2 (up to 4 vol.%) were obtained using hot pressing at different sintering temperature from 1700 to 1900 ?C. It was shown that milling of the raw AlN powder has strongly influence on sintering and improves densification. Broadband dielectric spectroscopy was used as a nondestructive method for monitoring of the ceramic microstructures. TiO2 additive affects the key properties of AlN ceramics. Thus, porosity of 0.1%, dielectric permeability of ? = 9.7 and dielectric loss tangent of tan? = 1.3?10-3 can be achieved if up to 2 vol.% TiO2 is added.

Frequency dielectric response of ferroelectric–magnetic ceramic composites like PbZr0.65Ti0.35O3–BaFe12O19

2015 ◽  
Vol 41 (5) ◽  
pp. 7091-7096 ◽  
Author(s):  
J.D.S. Guerra ◽  
R. McIntosh ◽  
J.-C. M׳Peko ◽  
A.C. Hernandes ◽  
R. Guo ◽  
...  
Keyword(s):  
Dielectric Response ◽  
Ceramic Composites

Influence of Solid Loading and Ratio of Monomers on Mechanical and Dielectric Properties of Hybrid Ceramic Composites

Silicon ◽  
2018 ◽  
Vol 11 (6) ◽  
pp. 2701-2710 ◽  
Author(s):  
Gurabvaiah Punugupati ◽  
P. S. C. Bose ◽  
G. Raghavendra ◽  
C. S. P. Rao
Keyword(s):  
Dielectric Properties ◽  
Ceramic Composites ◽  
Solid Loading ◽  
Hybrid Ceramic

Microstructural evolution and strongly enhanced dielectric response in Sn-doped CaCu3Ti4O12/CaTiO3 ceramic composites

2016 ◽  
Vol 77 ◽  
pp. 178-184 ◽  
Author(s):  
Jutapol Jumpatam ◽  
Bundit Putasaeng ◽  
Teerapon Yamwong ◽  
Prasit Thongbai ◽  
Santi Maensiri
Keyword(s):  
Microstructural Evolution ◽  
Dielectric Response ◽  
Ceramic Composites

Microstructural Evaluation of Silicon Carbide Whisker Reinforced Alumina Fabricated with Carbon-Coated Whiskers

1991 ◽  
Vol 49 ◽  
pp. 920-921
Author(s):  
K. B. Alexander ◽  
P. F. Becher
Keyword(s):  
Silicon Carbide ◽  
High Resolution Electron Microscopy ◽  
Ceramic Composites ◽  
Interface Debonding ◽  
Resolution Electron ◽  
Microstructural Evaluation ◽  
Carbon Coated ◽  
Electron Energy Loss ◽  
Interfacial Films ◽  
Debonding Process

The presence of interfacial films at the whisker-matrix interface can significantly influence the fracture toughness of ceramic composites. The film may alter the interface debonding process though changes in either the interfacial fracture energy or the residual stress at the interface. In addition, the films may affect the whisker pullout process through the frictional sliding coefficients or the extent of mechanical interlocking of the interface due to the whisker surface topography.Composites containing ACMC silicon carbide whiskers (SiCw) which had been coated with 5-10 nm of carbon and Tokai whiskers coated with 2 nm of carbon have been examined. High resolution electron microscopy (HREM) images of the interface were obtained with a JEOL 4000EX electron microscope. The whisker geometry used for HREM imaging is described in Reference 2. High spatial resolution (< 2-nm-diameter probe) parallel-collection electron energy loss spectroscopy (PEELS) measurements were obtained with a Philips EM400T/FEG microscope equipped with a Gatan Model 666 spectrometer.

HREM interface studies in SiC-whisker-reinforced Al2O3 and Si3N4 ceramics

1988 ◽  
Vol 46 ◽  
pp. 734-735
Author(s):  
W. Braue ◽  
R.W. Carpenter ◽  
D.J. Smith
Keyword(s):  
Analytical Data ◽  
Base Material ◽  
High Strength ◽  
Ceramic Composites ◽  
Good Thermal Stability ◽  
All Ceramic ◽  
Sic Whiskers ◽  
Base Composite ◽  
C 30 ◽  
Si3n4 Ceramics

Whisker and fiber reinforcement has been established as an effective toughening concept for monolithic structural ceramics to overcome limited fracture toughness and brittleness. SiC whiskers in particular combine both high strength and elastic moduli with good thermal stability and are compatible with most oxide and nonoxide matrices. As the major toughening mechanisms - crack branching, deflection and bridging - in SiC whiskenreinforced Al2O3 and Si3N41 are critically dependent on interface properties, a detailed TEM investigation was conducted on whisker/matrix interfaces in these all-ceramic- composites.In this study we present HREM images obtained at 400 kV from β-SiC/α-Al2O3 and β-SiC/β-Si3N4 interfaces, as well as preliminary analytical data. The Al2O3- base composite was hotpressed at 1830 °C/60 MPa in vacuum and the Si3N4-base material at 1725 °C/30 MPa in argon atmosphere, respectively, adding a total of 6 vt.% (Y2O3 + Al2O3) to the latter to promote densification.

Biomimetic materials: An introduction

1992 ◽  
Vol 50 (2) ◽  
pp. 1020-1021 ◽  
Author(s):  
M. Sarikaya ◽  
J. T. Staley ◽  
I. A. Aksay
Keyword(s):  
Self Assembly ◽  
Structural Control ◽  
Hierarchical Structures ◽  
Ceramic Composites ◽  
Advanced Materials ◽  
Length Scale ◽  
Spider Webs ◽  
Biomimetic Materials ◽  
Synthetic Materials ◽  
All Ceramic

Biomimetics is an area of research in which the analysis of structures and functions of natural materials provide a source of inspiration for design and processing concepts for novel synthetic materials. Through biomimetics, it may be possible to establish structural control on a continuous length scale, resulting in superior structures able to withstand the requirements placed upon advanced materials. It is well recognized that biological systems efficiently produce complex and hierarchical structures on the molecular, micrometer, and macro scales with unique properties, and with greater structural control than is possible with synthetic materials. The dynamism of these systems allows the collection and transport of constituents; the nucleation, configuration, and growth of new structures by self-assembly; and the repair and replacement of old and damaged components. These materials include all-organic components such as spider webs and insect cuticles (Fig. 1); inorganic-organic composites, such as seashells (Fig. 2) and bones; all-ceramic composites, such as sea urchin teeth, spines, and other skeletal units (Fig. 3); and inorganic ultrafine magnetic and semiconducting particles produced by bacteria and algae, respectively (Fig. 4).

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