A5101513113- Advanced Sensor and Energy Harvesting Materials
- Dielectric materials and actuators
- NMR spectroscopy and applications
- Hydrocarbon exploration and reservoir analysis
- Electromagnetic wave absorption materials
- Magnetic and Electromagnetic Effects
- Ultrasonics and Acoustic Wave Propagation
- Hydraulic Fracturing and Reservoir Analysis
- Perovskite Materials and Applications
- Petroleum Processing and Analysis
- Infrastructure Maintenance and Monitoring
- Ferroelectric and Piezoelectric Materials
- Gas Sensing Nanomaterials and Sensors
- Advanced DC-DC Converters
- Advancements in Solid Oxide Fuel Cells
- ZnO doping and properties
- Ga2O3 and related materials
- Spectroscopy and Quantum Chemical Studies
- 2D Materials and Applications
- Enhanced Oil Recovery Techniques
- Acoustic Wave Resonator Technologies
- Methane Hydrates and Related Phenomena
- Advanced MEMS and NEMS Technologies
- Mechanical Behavior of Composites
- Adhesion, Friction, and Surface Interactions
China University of Petroleum, East China
2023-2025
Beihang University
2014-2025
Liaocheng University
2020-2023
Shenyang Institute of Engineering
2018
ABSTRACT In this paper, the damage mechanisms and residual strength prediction models of unidirectional glass‐fiber reinforced polymers are investigated by acoustic emission (AE) technique. The material exhibits three modes: matrix cracking, fiber fracture, interface damage. A novel AE descriptor, amplitude/centroid frequency (ACF), is introduced to differentiate from other modes. Moreover, clustering analysis results used as a training set for K‐nearest neighbor (KNN) support vector machine...
Three-dimensional BaTiO3 (3D BT)/polyvinylidene fluoride (PVDF) composite dielectrics were fabricated by inversely introducing PVDF solution into a continuous 3D BT network, which was simply constructed via the sol-gel method using cleanroom wiper as template. The effect of microstructure and content on dielectric energy storage properties composites explored. results showed that with well-connected network moderate grain sizes could be easily obtained calcining barium source containing...
Abstract This paper presents the design and fabrication of double-ended tuning fork (DETF) resonator based on quartz. DETF was designed with two tines structure, due to this configuration has advantage providing dynamic balance. Both surface side electrode were in order enhance piezoelectric effect. fabricated from a quartz substrate by chemical wet etching photolithography processes, key feature is create Cr/Au metal films, which should be strong enough withstand aggressive etchant,...
Boundary layer formed by crude oil on the shale nanopores surface hinders fluidity of and leads to a decline in recovery. CO2 injection has been considered as an effective method enhance However, impact disruption boundary layers within extraction mechanisms during recovery process remains unclear. In this work, molecular dynamics simulation was employed investigate using scCO2 extract from nanopore surface. During extraction, polar molecules have capability reduce diffusion coefficient,...
In this paper, the damage mechanisms and residual strength prediction models of unidirectional glass-fiber reinforced polymers are investigated by acoustic emission(AE) technique. The material exhibits three modes: matrix cracking, fiber fracture, interface damage. A novel AE descriptor, amplitude/centroid frequency (ACF), is introduced to differentiate from other modes. Moreover, signal types exhibit a strong clustering effect when correlated with ACF average frequency. Microscopic samples...
(FePt)1−xCux (x = 0, 7·9, 16·0, 22·9 at-%) films 140 nm thick were deposited on glass substrates by cosputtering of FePt target and Cu chips. The content was adjusted changing the number Microstructures studied XRD cross-sectional TEM observations. thin annealed at various temperatures for 20 min characterised nanoscale column-like granular structure with a height ∼140 lateral size 5–10 nm. Each granule presented polycrystalline low angle grain boundaries, being much different from...
The two-dimensional (2D) monolayer butylammonium (BA)-based halide perovskites are applied for perovskite solar cells (PSCs) due to ultra-stable and highly crystalline. However, the systematic analysis has not been well conducted 2D (BA)2BX4 (B = Pb, Sn; X I, Br, Cl) perovskites. Here we systematically investigated photoelectric mechanical properties using density functional theory (DFT), further revealing effect mechanism of direct doping-modulated strain induced by external strain(stress)...
Abstract Three-dimensional (3D) ceramic network has advantages over conventional nanoparticles in achieving high-performance flexible polymer dielectrics. However, the energy storage capacity cannot be substantially improved due to relatively large dielectric loss and low breakdown strength. In this study, hierarchical 3DBT/EP-GO (GEBT) hybrid composites with greatly permittivity density were obtained by reversely introducing mixed graphene oxide (GO)/epoxy (EP) solution into...