Results 61 to 70 of about 2,636 (242)

Dimensional effect of SrTiO3 particles on functional performance optimization of polydimethylsiloxane-based composites for dielectric elastomer actuators

Materials Research Express, 2020
Dielectric elastomer materials have a great application potential in electromechanical sensing and energy-harvesting fields. However, the realization of high electro-actuation properties under a relatively low electric field is still a critical challenge.
Xin Wei, Shuyan Gao, Na Zhang, Hang Zhao
doaj   +1 more source

Nanolayer‐Encapsulated Stretchable Liquid‐Metal Sheets for Thermal Management

Advanced Functional Materials, EarlyView.
A stretchable liquid metal sheet with both high thermal conductivity and mechanical flexibility is developed. Its trilayer structure, comprising copper‐particle‐dispersed gallium liquid metal encapsulated by styrene‐butadiene‐styrene nanosheets, shows 40.4 W m−1 K−1 conductivity, elongation exceeding 200%, and retention of 96% of its initial ...
Daisuke Kuse, Yudai Kaneko, Ryohei Fujita, Tatsuhiro Horii, Daishi Shiojiri, Yuta Ozawa, Kyohei Nagatake, Tamami Takano, Yutaka Isoda, Aoi Koishikawa, Takashi Goto, Ai Ueno, Shoji Maruo, Kazuhide Ueno, Toshinori Fujie, Hosei Nagano, Hiroki Ota   +16 more
wiley   +1 more source

Dielectric elastomer generator with piezoelectric offset

AIP Advances, 2020
In the past studies, dielectric elastomer generators (DEGs) need a high voltage DC power supply to provide an offset voltage, which restricts the application of DEG technology in practical projects.
Jianbo Cao, Ge Xu, Shiju E, Tianfeng Zhao, Zhao Gao, Hanpin Luo   +5 more
doaj   +1 more source

External Reflection From Two‐Photon Laser‐Printed Micromirrors Enables Photomechanical Actuation at a 90° Incident Angle

Advanced Functional Materials, EarlyView.
Light reflectance increases along incidence angle and transmittance significantly drops around 90‐degree incidence angle. Here, we report two‐photon laser printed micro mirrors that redirect the skimming light beam into normal light absorption. Using this technique, light‐driven micro walkers and grippers are demonstrated by using grazing incidence ...
Leilei Song, Jianfeng Yang, Hao Zeng
wiley   +1 more source

Two‐Way Shape Memory Alloy and Polymer Composite Hybrid Smart Actuator With High Speed, Accuracy, and Reversible Deformation

Advanced Functional Materials, EarlyView.
Tailored thermo‐mechanical properties of shape memory polymer composites enable large reversible deformation as well as high actuation speed. Moreover, a structural design with curvature in the transverse direction achieves sub‐second actuation on heating and a larger recovery ratio on cooling. Finally, these newly developed smart two‐way actuators can
Dajeong Kang, Seong Yeon Park, Yitro Samuel Aditya, Ha Eun Lee, Wonvin Kim, Sangyoon Bae, Seong Su Kim   +6 more
wiley   +1 more source

Review of dielectric elastomers for actuators, generators and sensors

IET Nanodielectrics, 2020
Electroactive polymer (EAP) is a kind of smart material, which can change its shape under the stimulation of electric field. Dielectric elastomer (DE) is an important member of the EAP.
Yu Zhao, Li-Juan Yin, Shao-Long Zhong, Jun-Wei Zha, Zhi-Min Dang   +4 more
doaj   +1 more source

Novel Functional Materials via 3D Printing by Vat Photopolymerization

Advanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov, Patrick Fesser, Boris A. Bulgakov, Ulrich S. Schubert   +3 more
wiley   +1 more source

The Temperature and Voltage Resistance Performance of Phenyl‐Modified Silicone Elastomers for High‐Voltage and High‐Power Semiconductor Device Encapsulation

High Voltage
Silicon carbide (SiC) high‐voltage, high‐power semiconductor devices are essential for next‐generation power systems, yet conventional silicone elastomer encapsulation materials suffer from insulation degradation under extreme thermal and electrical ...
Dongxin He, Haochen Wang, Yuchao Li, Yue Wang, Qingfa Li, Qingquan Li   +5 more
doaj   +1 more source

Artificial intelligence artificial muscle of dielectric elastomers

Materials & Design
Artificial muscles (AMs), which encompass materials or devices capable of replicating the functions of natural muscles, have garnered significant attention in recent years, driven by the advent of various materials (advanced hydrogels, pneumatic AMs ...
Dongyang Huang, Jiaxuan Ma, Yubing Han, Chang Xue, Mengying Zhang, Weijia Wen, Sheng Sun, Jinbo Wu   +7 more
doaj   +1 more source

Energy harvesting performance of viscoelastic polyacrylic dielectric elastomers

International Journal of Smart and Nano Materials, 2015
Viscoelasticity dissipates the mechanical energy, leading to a reduction of energy conversion efficiency in both dielectric elastomer (DE) actuators and generators.
Junshi Zhang, Yongquan Wang, Hualing Chen, Bo Li   +3 more
doaj   +1 more source