Results 51 to 60 of about 6,016,080 (298)

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

Advanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar, Fumikazu Murakami, Xing He, Konnor Koons, Xinyan Li, Bumseop Kim, Shihan Qin, Varun Harbola, Jochen Mannhart, Yimo Han, Ruijuan Xu, Shengxi Huang, Andrew M. Rappe, Hanyu Zhu   +13 more
wiley   +1 more source

Percolative behavior in complex permittivity and permeability of silver/epoxy nanocomposite at terahertz by time-domain spectroscopy [PDF]

APL Materials
Complex permittivity and permeability govern the electromagnetic (EM) behavior of materials and are critical for advanced high-frequency applications. In this work, we investigate silver/epoxy nanocomposites as a prototypical conductor–insulator system ...
Bo-Wei Tseng, Hua-Yan Chen, Po-Hsiang Chuang, Chan-Shan Yang, Tsun-Hsu Chang   +4 more
doaj   +1 more source

Microwave processing and permittivity measurement of thermoplastic composites at elevated temperature [PDF]

, 1999
[Abstract]: The material properties of greatest importance in microwave processing of a dielectric are the complex relative permittivity ε = ε′- jε″, and the loss tangent, tan δ = ε″/ ε′.
Siores, Elias, Horsfield, Brendan, E Siores, H.S Ku, Ball, James A. R., B Horsfield, Ku, Harry S., J.A.R Ball   +7 more
core   +1 more source

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

Advanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang, Temesgen Tadeyos Zate, Peiren Wang, Soumyajit Mojumder, Elo Overgaard Mogensen, Oriol Gavalda‐Diaz, Zihe Li, Shitong Zhou, Ajeet Kumar, James Roscow, Hamideh Khanbareh, Astri Bjørnetun Haugen, Florian Bouville   +12 more
wiley   +1 more source

A new approach for estimating the complex permittivity of powdered dielectrics using a rectangular waveguide in the X-band [PDF]

EPJ Web of Conferences
This paper introduces a new method for estimating the complex permittivity of powdered dielectric materials using a rectangular waveguide. The measurement configuration is based on a multilayer structure in which the powder sample is enclosed between two
Talmoudi Omaima, Ait Benali Lahcen, Terhzaz Jaouad, Tribak Abdelwahed, Ibañez Tomas Fernandez   +4 more
doaj   +1 more source

A Thermodynamic Model of Antiferroelectics and Its Application to Electric Field Induced Antiferroelectric‐Ferroelectric Transition in PbZrO3

Advanced Functional Materials, EarlyView.
A thermodynamic model that incorporates ferroelectric, antiferroelectric, and antiferrodistortive orders of PbZrO3${\rm PbZrO}_3$ is established and parameterized based on experimental measurements and first‐principles calculations. We derive a Clapeyron‐like equation for describing the temperature‐dependence of critical electric fields for the ...
Zhiyang Wang, Guodong Zhao, Aiden Ross, Long‐Qing Chen   +3 more
wiley   +1 more source

Complex permittivity determination only with reflection coefficient in partially filled waveguides [PDF]

, 2018
In this study, dielectric measurement of homogeneous materials partially loaded in rectangular waveguides is presented utilizing multi-frequency reflection coefficient (Gamma(M)) data measured via a vector network analyser.
AYDOĞAN, AHMET
core   +1 more source

Ferroelectric Polarization Enabled Threshold Voltage Modulation in High Electron Mobility Transistor

Advanced Functional Materials, EarlyView.
A comprehensive model is developed to capture the coupled electrostatics of a ferroelectric capacitor and a metal‐insulator‐semiconductor high electron mobility transistor (MISHEMT) connected in ferroelectric‐metal high electron mobility transistor (FeMHEMT) configuration.
Wentian Gao, Andre Wachowiak, Thomas Mikolajick, Uwe Schroeder, Roberto Guido   +4 more
wiley   +1 more source

Measurement of complex permittivity of composite materials using waveguide method [PDF]

, 2011
Complex dielectric permittivity of 4 different composite materials has been measured using the transmissionline method. A waveguide fixture in L, S, C and X band was used for the measurements.
Buesink, F.J.K., Tereshchenko, O.V., Leferink, F.B.J.; id_orcid   +2 more
core   +1 more source