Results 61 to 70 of about 4,619,415 (391)

Magnetic Effects on Dielectric and Polarization Behavior of Multiferroic Hetrostructures

open access: yes, 2010
PbZr0.52Ti0.48O3/La0.67Sr0.33MnO3(PZT/LSMO) bilayer with surface roughness ~ 1.8 nm thin films have been grown by pulsed laser deposition on LaAlO3(LAO) substrates.
Dussan, Sandra   +3 more
core   +2 more sources

Artificial dielectric devices for variable polarization compensation at millimeter and submillimeter wavelengths [PDF]

open access: yes, 2003
Variable polarization compensation has been demonstrated at 100 GHz. The device consists of two interlocking V-groove artificial dielectric gratings that produce a birefringence that varies with the separation distance. A maximum retardance of 74/spl deg/
Blaikie, R.J.   +3 more
core   +2 more sources

Wafer Bonding Technologies for Microelectromechanical Systems and 3D ICs: Advances, Challenges, and Trends

open access: yesAdvanced Engineering Materials, EarlyView.
This review explores wafer bonding technologies, covering wafer preparation, activation methods, and bonding mechanisms. It compares direct and indirect bonding, highlights recent advancements and future trends, and examines applications in 3D integration and packaging.
Abdul Ahad Khan   +5 more
wiley   +1 more source

Investigation of dielectric properties of Fe and Co coated thin films on PbZrTiO3

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi
PbZr1-xTixO3 ceramic material, which has ferroelectric-piezoelectric properties, attracts great attention from researchers due to its electrical and electromechanical properties.
Dilek Kafkas   +2 more
doaj   +1 more source

Graphene/poly(vinylidene fluoride) dielectric composites with polydopamine as interface layers

open access: yesScience and Engineering of Composite Materials, 2017
A poly(vinylidene fluoride) (PVDF) nanocomposite incorporated with polydopamine-coated reduced graphene oxide (rGO@PDOPA) nanosheets has been developed with high dielectric permittivity and low loss for electricity storage applications.
Li Hairong   +4 more
doaj   +1 more source

Design of Multiphase Compositionally Complex Alloys for Enhanced Hardness at Elevated Temperatures and Machinability: Comparative Study with Inconel 718

open access: yesAdvanced Engineering Materials, EarlyView.
This study compares the mechanical properties of Inconel 718 with two newly developed compositionally complex alloys (CCAs). Inco‐like‐H alloy demonstrates significantly improved wear resistance, surface finish, and hardness, notably at high temperatures. This CCA requires no heat treatment and is well suited for additive manufacturing. Its performance
Laurent Peltier   +3 more
wiley   +1 more source

Dielectric loss in porous TiO2 [PDF]

open access: yesCeramics International, 2017
Abstract The dielectric loss behavior of TiO 2 was characterized on samples of variable porosity and variable pore size. Pores were formed by two methods: varying the sintering temperature and by the addition of a spherical carbon porogen. Porosities varied from 5.9% to 59.3%.
John W. Halloran, Zachary N. Wing
openaire   +2 more sources

Time-temperature superposition in viscous liquids [PDF]

open access: yes, 2000
Dielectric relaxation measurements on supercooled triphenyl phosphite show that at low temperatures time-temperature superposition (TTS) is accurately obeyed for the primary (alpha) relaxation process.
A. Hedoux   +49 more
core   +2 more sources

Soft Beats: A Dielectric Elastomer‐Based Ventricular Assist Device for Next‐Gen Heart Failure Management

open access: yesAdvanced Engineering Materials, EarlyView.
The dielectric elastomer‐based electropneumatic device (DE‐EPD) is a vacuum‐assisted ventricular assist device (VAD) that delivers high performance (85 mmHg, 6.8 L min−1) with low power consumption. Unlike traditional motor‐driven VADs, it is lightweight, quiet, energy‐efficient, and provides pulsatile flow. Validated in a simulated circulation system,
Amine Benouhiba   +6 more
wiley   +1 more source

Predicting Wood Strength using Dielectric Parameters

open access: yesBioResources, 2015
There are various methods for nondestructive imaging of the internal structure of wood. A microwave nondestructive method based on the dielectric properties of a medium is an area of great interest for predicting wood strength in the worldwide wood ...
Hamiyet Şahin Kol, İlker Yalçın
doaj   +1 more source

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