A5103091033- Ferroelectric and Piezoelectric Materials
- Microwave Dielectric Ceramics Synthesis
- Dielectric materials and actuators
- Advanced ceramic materials synthesis
- Glass properties and applications
- Pulsed Power Technology Applications
- High voltage insulation and dielectric phenomena
- Electrostatic Discharge in Electronics
- Semiconductor materials and devices
- Gyrotron and Vacuum Electronics Research
- High-Temperature Coating Behaviors
- Recycling and utilization of industrial and municipal waste in materials production
- Electrical and Thermal Properties of Materials
- Optical Systems and Laser Technology
- Electromagnetic Launch and Propulsion Technology
- Structural Health Monitoring Techniques
- Multiferroics and related materials
- Geomechanics and Mining Engineering
- Advanced Measurement and Metrology Techniques
- Flame retardant materials and properties
- Additive Manufacturing and 3D Printing Technologies
- Gas Sensing Nanomaterials and Sensors
- Photorefractive and Nonlinear Optics
- Grouting, Rheology, and Soil Mechanics
- Advanced Sensor and Energy Harvesting Materials
Qilu Hospital of Shandong University
2025
Grinm Advanced Materials (China)
2024
State Key Laboratory of Advanced Materials for Smart Sensing
2024
General Research Institute for Nonferrous Metals (China)
2011-2024
Binzhou People's Hospital
2024
The energy storage density of a Ba 0.4 Sr 0.6 TiO 3 ceramic with the addition 5–20 vol% glass was investigated. results show that improvement in glass‐added samples arises due to two factors: one is breakdown strength notably improved decrease porosity and reduction grain size pore other remnant polarization decreased. containing 5 additive by factor 2.4 compared pure .
(100− x ) wt% Ba 0.4 Sr 0.6 TiO 3 − MgO composites (10≤ ≤30) were prepared using powder and nanosized (∼60 nm) by a solid‐state reaction. The energy storage density dielectric loss investigated for the purpose of potential application in pulse‐forming line. results show that /MgO exhibit notably enhanced low loss, compared with pure . enhancement is attributed to notable increase breakdown strength improvement constant stability regard electric field. In case =30, samples exhibited 33.1...
The structural and dielectric properties were investigated in the La 2 O 3 added glass‐ceramics based on complex niobates. With addition of , optimization microstructure was observed which resulted improvement breakdown strength for glass‐ceramics. Besides, constant drastically enhanced because doping effect 3+ A‐sites both crystallographic structures. Due to combined effects high polarization difference, maximum discharged energy density 1.2 J/cm achieved niobate with mol% suggesting this...
Discharged energy properties of PbO–SrO–Na 2 O–Nb O 5 –SiO glass‐ceramics with crystallization time from 1 to 1000 min were investigated by measuring their hysteresis loops (described as quasi‐static method) and pulse‐discharge current‐time curves dynamic method). The results show the same trend for both methods: With increment time, discharged density increases gradually, while efficiency decreases. highest efficiencies obtained in sample min, which are 96.3% 82.4%, corresponding...
Nanocomposite dielectrics in 6PbO-4BaO-20Na2O-40Nb2O5-30SiO2 system were prepared via melt-quenching followed by controlled crystallization. X-ray diffraction studies reveal that Pb2Nb2O7, Ba,NaNb5O15, NaNbO3 and PbNb2O6 phases are formed from the as-quenched glass annealed temperature range 700 degrees C to 850 C. Ba2NaNb5O15, Pb2Nb2O7 crystallizes at then disappears C, while Microstructural observation shows crystallized particles nanometer-sized randomly distributed with matrix being...
Solid dielectrics are attracting lots of interest in the compact, portable pulsed power system. In this paper, meander pulse forming line fabricated on glass ceramic is tested under tens kilo-volts. Experimental results show that substrate can hold off voltage higher than 20 kV. More importantly, distributions breakdown points have regularities, which present edge effects field enhancement at specialized areas. Simulation also indicate same phenomena, and a simplified model built to find...
Breakdown characteristics of ferroelectric glass-ceramic capacitors in the PbO-SrO-Na <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> O-Nb O xmlns:xlink="http://www.w3.org/1999/xlink">5</sub> -SiO system were studied, including under dc charging and pulse charging. Results revealed that capacitance before after was with no significant alternation. Relationship between dielectric constant electric field also explored. Meanwhile, a...
Compact, portable pulsed power technology is rapidly developed. Solid-state storage medium attracts strong interest, since it has been characterized a high density and good environmental adaptability. In this paper, we use glass-ceramic substrate, with the dimension of 250 mm×95 mm× 4 mm, to deliver high-voltage pulse duration longer than 120 ns. tests, both impedance are varying when changing dielectric from transformer oil or air propylene carbonate. A theoretical model used analyze...
Bulk Na2O–BaO–PbO–Nb2O5–SiO2 glass-ceramic dielectrics in considerable size (about 200×100×5mm3) were prepared via controlled-crystallization route. The dielectric properties (including the permittivity and loss tangent) of bulk investigated. results show that capability charge or energy storage is relatively lower than anticipation based on thinner smaller specimen, due to serious breakdown strength (BDS) drop dielectrics. Several electrode structures designed applied measurement circuit...
A new solid-state pulse forming module is described in this paper. The fabricated on a glass ceramic substrate, with the dimension of 250 mm × 95 4 mm. By changing copper strips used modules, duration obtained pulsed can range from 80 ns to 140 ns. Both simulation and tests show that has good ability. Under high voltage microsecond’s time, modules hold off up 25 kV higher than previous study. In addition, future optimization for field enhancement near thin electrode edge been proposed simulated.
Abstract Micro-lens arrays, due to their unique structure and outstanding optical performance, have been widely applied in advanced domains such as display technology, imaging, laser processing. Among the manufacturing techniques, embossing molding is considered an efficient precise method for fabricating micro-lens arrays. However, given intricate structural characteristics of these control over process becomes paramount. This study introduces a digital twin system array manufacturing,...
Abstract In the field of engineering, Finite Element Analysis (FEA) serves as a pivotal numerical simulation tool. Nevertheless, its inherent offline nature and dependency on real-time data pose limitations versatility. To confront this challenge, FEA approach centered surrogate modeling has been developed. This method enables instantaneous prediction critical performance parameters, thereby providing crucial support for decision-making process monitoring. context study, focus is glass...