Results 121 to 130 of about 683,605 (337)

Dielectric Behavior of Stretchable Silicone Rubber–Barium Titanate Composites

Crystals
In this study, elastomer composites, including silicone rubber and barium titanate, were fabricated by mechanical mixing, a low-cost, fast, and easy technique to produce highly dielectric materials.
Argyri Drymiskianaki, Klytaimnistra Katsara, Alexandra Manousaki, Zacharias Viskadourakis, George Kenanakis   +4 more
doaj   +1 more source

Enhanced performance of porous silicone-based dielectric elastomeric composites by low filler content of Ag@SiO2 Core-Shell nanoparticles

Nanocomposites, 2018
In the present work, micropores and a low filler content of Ag@SiO2 nanoparticles (NPs) are synchronously introduced into polydimethylsiloxane (PDMS) film to obtain porous dielectric elastomeric composites.
Lian Xiong, Shaodi Zheng, Zewang Xu, Zhengying Liu, Wei Yang, Mingbo Yang   +5 more
doaj   +1 more source

Dielectric Electroactive Polymers with Chemical Pre-Strain: An Experimentally Validated Model

Actuators, 2018
Dielectric electroactive polymer materials represent a distinct group of smart materials that are capable of converting between electrical and mechanical energy.
Brittany Newell, Jose Garcia, Gary Krutz
doaj   +1 more source

Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes

Advanced Materials Technologies, EarlyView.
We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard, Thulasinath Raman Venkatesan, Michael Bauer, Valentin Razvan Lupu, Philipp Scheidegger, Francesco Taddei, Frank A. Nüesch, Dorina M. Opris   +7 more
wiley   +1 more source

Dielectric Elastomer Actuators with Carbon Nanotube Electrodes Painted with a Soft Brush

Actuators, 2018
We propose a simple methodology to paint carbon nanotube (CNT) powder with a soft brush onto an elastomer. A large deformation of dielectric elastomer actuator (DEA) occurs according to the small constraint of the electrodes. Uniform painting with a soft
Hiroki Shigemune, Shigeki Sugano, Jun Nishitani, Masayuki Yamauchi, Naoki Hosoya, Shuji Hashimoto, Shingo Maeda   +6 more
doaj   +1 more source

Ageing of Natural Rubber under Stress

, 2000
We report a dynamical-mechanical study of stress relaxation at small deformation in a natural (polyisoprene) rubber well above its glass transition temperature Tg. We find that an almost complete relaxation of stress takes place over very long periods of
Clarke, S. M., Elias, F., Terentjev, E. M.   +2 more
core   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

Advanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani, Carlo Antonini, Teresa Gatti, Mengjiao Wang   +3 more
wiley   +1 more source

High-performance dielectric elastomers with transparent electrodes for wearable and portable technologies

Academia Materials Science
Dielectric elastomers offer several advantages such as low cost, high efficiency, high output, large deformations, light weight, and ease of stacking. Recently, it has become possible to lift a weight of 8 kg by more than 1 mm at a speed of 88
Seiki Chiba, Mikio Waki
doaj   +1 more source

Performance of soft dielectric laminated composites

, 2013
This paper contains a thorough investigation of the performance of electrically activated layered soft dielectric composite actuators under plane deformation. Noting that the activation can be induced controlling either the voltage or the surface charge,
Bortot, Eliana, Gei, Massimiliano, Springhetti, Roberta   +2 more
core   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source