scholarly journals All-Ceramic Percolative Composites with a Colossal Dielectric Response

10.5772/16400 ◽  
2011 ◽  
Author(s):  
Vid Bobnar ◽  
Marko Hrovat ◽  
Janez Holc ◽  
Marija Kosec
Keyword(s):  
Dielectric Response ◽  
All Ceramic

Colossal dielectric response in all-ceramic percolative composite 0.65Pb(Mg1/3Nb2/3)O3–0.35PbTiO3–Pb2Ru2O6.5

2009 ◽  
Vol 105 (3) ◽  
pp. 034108 ◽  
Author(s):  
V. Bobnar ◽  
M. Hrovat ◽  
J. Holc ◽  
C. Filipič ◽  
A. Levstik ◽  
...  
Keyword(s):  
Dielectric Response ◽  
All Ceramic

All-ceramic lead-free percolative composite with a colossal dielectric response

2009 ◽  
Vol 29 (4) ◽  
pp. 725-729 ◽  
Author(s):  
Vid Bobnar ◽  
Marko Hrovat ◽  
Janez Holc ◽  
Marija Kosec
Keyword(s):  
Dielectric Response ◽  
Lead Free ◽  
All Ceramic

Giant dielectric response in Pb(Zr,Ti)O3–Pb2Ru2O6.5 all-ceramic percolative composite

2008 ◽  
Vol 92 (18) ◽  
pp. 182911 ◽  
Author(s):  
Vid Bobnar ◽  
Marko Hrovat ◽  
Janez Holc ◽  
Marija Kosec
Keyword(s):  
Dielectric Response ◽  
Giant Dielectric ◽  
All Ceramic

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).

Nonlocal dielectric response in dipolar polymers

1993 ◽  
Vol 3 (4) ◽  
pp. 503-513 ◽  
Author(s):  
M. Warner ◽  
M. E. Cates
Keyword(s):  
Dielectric Response

Enhanced dielectric response in (BEDT-TTF) (ClMeTCNQ) at the neutral-ionic phase transitions

2004 ◽  
Vol 114 ◽  
pp. 137-139
Author(s):  
Y. Takahashi ◽  
T. Hasegawa ◽  
T. Akutagawa ◽  
T. Nakamura
Keyword(s):  
Phase Transitions ◽  
Dielectric Response

DIELECTRIC RESPONSE AND ENERGY LOSS FOR AN INTERMEDIATE QUANTUM PLASMA

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-513-C7-514
Author(s):  
N. E. Frankel ◽  
K. C. Hines ◽  
R. D.B. Speirs
Keyword(s):  
Energy Loss ◽  
Dielectric Response ◽  
Quantum Plasma

A Physics-Based Model for the Dielectric Response of Shaly Sands and Continuous CEC Logging

2018 ◽  
Vol 3 (59) ◽  
pp. 354-372 ◽  
Author(s):  
Denise E. Freed ◽  
◽  
Nikita Seleznev ◽  
Chang-Yu Hou ◽  
Kamilla Fellah ◽  
...  
Keyword(s):  
Dielectric Response
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