Results 51 to 60 of about 394,351 (300)

Raman spectra analysis for Ba[(Mg1-xNix)1/3Nb2/3]O3 microwave dielectric ceramics

open access: yesAIP Advances, 2015
Raman spectra analysis has been carried out for both the as-sintered and annealed Ba[(Mg1−xNix)1/3Nb2/3]O3 ceramics. Based on the harmonic resonant model, all the Raman modes are successfully assigned according to the effects of ion substitution and post-
Tu Lai Sun, Xiang Ming Chen
doaj   +1 more source

Enhanced thermal and pyroelectric properties in 0–3 TGS:PVDF composites doped with graphene for infrared application [PDF]

open access: yesJournal of Advanced Dielectrics, 2017
Pyroelectric composites of triglycine sulfate (TGS)-polyvinylidene difluoride (PVDF) doped with graphene are studied. It is found that the graphene can effectively improve the polling efficiency and thermal property of the composites so that the infrared
Xiaodong Feng   +5 more
doaj   +1 more source

Improved process for making thin-film sodium niobate capacitors [PDF]

open access: yes, 1968
Sodium niobate, formed by high vacuum, flash, and reactive evaporations, has a high dielectric constant and is used as a thin film dielectric in microelectronic capacitors. High purity films are formed from relatively inexpensive, pure starting materials.
Micka, E. Z.
core   +1 more source

Off-resonance field enhancement by spherical nanoshells

open access: yes, 2010
We study light scattering by spherical nanoshells consistent of metal/dielectric composites. We consider two geometries of metallic nanoshell with dielectric core, and dielectric coated metallic nanoparticle.
Andrey E. Miroshnichenko   +5 more
core   +1 more source

Influence of semicon shields on the dielectric loss of XLPE cables [PDF]

open access: yes, 2009
Dielectric response measurement techniques in both time and frequency domains are studied in order to measure the dielectric loss of XLPE cables, which have very low losses.
Dodd, S. J.   +3 more
core   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

open access: yesAdvanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan   +9 more
wiley   +1 more source

Repulsive Casimir forces [PDF]

open access: yes, 2002
We discuss repulsive Casimir forces between dielectric materials with non trivial magnetic susceptibility. It is shown that considerations based on naive pair-wise summation of Van der Waals and Casimir Polder forces may not only give an incorrect ...
A. Mann   +26 more
core   +2 more sources

Dielectric Characterization of a Nonlinear Optical Material [PDF]

open access: yesScientific Reports, 2014
Batisite was reported to be a nonlinear optical material showing second harmonic generation. Using dielectric spectroscopy and polarization measurements, we provide a thorough investigation of the dielectric and charge-transport properties of this material. Batisite shows the typical characteristics of a linear lossy dielectric.
Lunkenheimer, P.   +4 more
openaire   +3 more sources

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

open access: yesAdvanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin   +4 more
wiley   +1 more source

Ru Single Atoms Anchored on Oxygen‐Vacancy‐Rich ZrO2‐x/C for Synergistically Enhanced Hydrogen Oxidation

open access: yesAdvanced Science
The hydrogen oxidation reaction (HOR) in alkaline media is pivotal for the advancement of anion exchange membrane fuel cells (AEMFCs), and the development of single‐atom catalysts offers a promising solution for creating cost‐effective, highly efficient ...
Xiaojuan Zhang   +13 more
doaj   +1 more source

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