A5055273736- Advanced Sensor and Energy Harvesting Materials
- Dielectric materials and actuators
- Vibration Control and Rheological Fluids
- Advanced Materials and Mechanics
- Ferroelectric and Piezoelectric Materials
- Soft Robotics and Applications
- Modular Robots and Swarm Intelligence
- Micro and Nano Robotics
- Piezoelectric Actuators and Control
- Acoustic Wave Resonator Technologies
- Conducting polymers and applications
- Tactile and Sensory Interactions
- Structural Analysis and Optimization
- Advanced MEMS and NEMS Technologies
- Photonic Crystals and Applications
- Magnesium Alloys: Properties and Applications
- Advanced Battery Materials and Technologies
- Electrowetting and Microfluidic Technologies
- Aluminum Alloys Composites Properties
- Force Microscopy Techniques and Applications
- Hydraulic and Pneumatic Systems
- Polydiacetylene-based materials and applications
- Hepatitis C virus research
- Innovative Energy Harvesting Technologies
- Adhesion, Friction, and Surface Interactions
Xi'an Jiaotong University
2015-2024
China Academy of Space Technology
2022-2024
Changchun University of Science and Technology
2018-2024
Genertec Shenyang Machine Tool Co., Ltd. (China)
2024
China Academy of Engineering Physics
2023
Northwestern Polytechnical University
2016-2023
University of Chinese Academy of Sciences
2023
National Center for Nanoscience and Technology
2023
Zhengzhou University of Aeronautics
2022
State Key Laboratory of Multiphase Flow in Power Engineering
2022
Abstract Over the past few decades, flexible sensors have been developed from “electronic” level to “iontronic” level, and gradually “ionic” level. Ionic (IFS) are one kind of advanced that based on concept ion migration. Compared conventional electronic sensors, IFS can not only replicate topological structures human skin, but also capable achieving tactile perception functions similar which provide effective tools methods for narrowing gap between electronics biological interfaces. In this...
Piezoresistive composite-based flexible pressure sensors often suffer from a trade-off between the sensitivity and measurement range. Moreover, or range is theoretically limited owing to negative piezoresistive coefficient, resulting in resistance variation below 100%. Here, were fabricated using three-dimensional (3D) printing technique improve both sensing through positive effect. With addition of carbon nanotubes (CNTs) fumed silica nanoparticles (SiNPs) as conductive filler rheology...
A dielectric elastomer is capable of giant electromechanical actuation but fails at breakdown due to instability under certain conditions with a small deformation. By applying mechanical pre-stretch, one obtains stabilized large actuation. In this paper, we measured the constant and critical voltage polyacrylic subjected both equal unequal biaxial stretch, modelled its by employing Gent strain energy function microscopic view characterize nonlinear stiffening behaviour electrostrictive...
This paper proposes a free energy model to study the dynamic characteristics of dielectric elastomer membrane undergoing in-plane deformation, subject combined loads mechanical press and an electric field. The natural frequency small-amplitude perturbation around state equilibrium is calculated with focus on damping effects resonance phenomenon. numerical results, such as oscillation, phase diagrams Poincare maps, are presented show influence nonlinear elastomer. results indicate that...
A light-inspired hydroxyapatite (Hap)/nitrogen-doped carbon dots (NCDs) modified graphene oxide (GO) heterojunction film is developed, which shows a promoted separation of interfacial electrons and holes an inhibited recombination efficiency via hole depletion. The metabolism bacteria on this significantly under light irradiation, due to the enhanced photocatalytic photothermal effects. In addition, electron transfer from plasmonic membrane GO/NCD/Hap further inhibits adenosine triphosphate...
Abstract The prospects of endowing artificial robotics or devices with increasingly complex and emergent life‐like behaviors have attracted growing interest in the soft functional materials that mimic versatile motions living creatures iridescent nature. However, despite flourishing achievements so far, actuators capable sensitive multi‐stimulus responses self‐sustainable movements, been extensively pursued to reduce control complexity yet remains a challenging target. Here, through...
Miniature robots show great potential in exploring narrow and confined spaces to perform various tasks, but many applications are limited by the dependence of these on electrical or pneumatic tethers power supplies outboard. Developing an onboard actuator that is small size powerful enough carry all components a major challenge eliminate need for tether. Bistability can trigger dramatic energy release during switching between 2 stable states, thus providing promising way overcome intrinsic...
The dielectric constant of elastomeric material is an essential physical parameter, whose value may affect the electromechanical deformation a elastomer actuator. Since influenced by several external factors as reported before, and no certain has been confirmed to our knowledge, in present paper, on basis systematical comparison recent past literature, we conducted extensive works measurement properties VHB films, involving five influencing factors: prestretch (both equal unequal biaxial),...
A novel bilayer coating (HT24h) was fabricated on magnesium using microarc oxidation (MAO) and hydrothermal treatment (HT). The comprises an outer layer of narrow interrod spaced hydroxyapatite (HA) nanorods inner MgO containing Mg(OH)2/HA-sealing-pores. formation mechanism HA MAO-formed explored. Also, evolution structure bonding integrity HT24h with immersion in physiological saline (PS) for 0–90 days, corrosion resistance cytocompatibility the were investigated, together...
Microarc oxidation (MAO) has been regarded as one of the most effective techniques to suspend corrosion rate Mg-based alloys. In this research, MAO coating was successfully constructed on surface high-purity Zn for biomedical purpose. The microstructure, composition, behavior, and biocompatibility MAO-coated samples were investigated. It found that micro/nano pores homogeneously distributed after treatment in electrolyte containing calcium phosphorus components with pore size ranging from...
Despite the tremendous efforts dedicated to developing various wearable piezoresistive sensors with sufficient stretchability and high sensitivity, challenges remain pertaining fabrication scalability, cost, efficiency. In this study, a facile, scalable, low-cost coaxial printing strategy is employed fabricate stretchable flexible fibers core-sheath structure for strain sensors. The highly viscous silica-modified silicone elastomer solution used print insulating sheath layer, solutions...
Cables are critical in engineering structures for load‐bearing, electronic connection, and mechanical transmission. Various cable‐crawling robots (CCRs) have been developed to perform scheduled inspection or convey supplies. Most existing CCRs often actuated by motors used large‐scaled structures. The heavy bodies of these can cause damage even casualties once slippage drop occurs. A small lightweight CCR that crawl on thin cables is highly demanded safety narrow confined inner spaces...
A dielectric elastomer is capable of large voltage-induced deformation, particularly when the voltage applied on verge snap-through instability. model described which shows that instability markedly affected by both extension limit polymer chains and polarization saturation dipoles. The may guide search for high-performance transducers.
Subject to a mechanical load or voltage, membrane of dielectric elastomer deforms. As for the deformation mode, dynamic performance and stability are strongly affected by how forces applied. In current study, using Euler-Lagrange equation, an analytical model is developed characterize homogeneously deformed viscoelastic under conditions equal-biaxial force, uniaxial pure shear state, respectively. Numerical results shown describe electromechanical stability. It observed that resonant...
As an organic sulfur pollutant generated in blast furnace gas, carbonyl sulfide (COS) has attracted more attention due to its negative effects on the environment and economy. The TiO2-Al2O3 composite metal oxide (Ti0.5Al) with uniformly dispersed particles was prepared by co-precipitation method. And this basis, a series of Na/K-doped catalysts were separately. activity evaluation results showed that introduction Na/K significantly improved low-temperature COS hydrolysis activity, which...