A5103000173- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Microwave Dielectric Ceramics Synthesis
- Advanced ceramic materials synthesis
- Orthodontics and Dentofacial Orthopedics
- Magnetic and transport properties of perovskites and related materials
- Dental Implant Techniques and Outcomes
- Dielectric materials and actuators
- Cutaneous Melanoma Detection and Management
- Quantum Dots Synthesis And Properties
- Cancer and Skin Lesions
- Acoustic Wave Resonator Technologies
- Dental Radiography and Imaging
- Ga2O3 and related materials
- Mitochondrial Function and Pathology
- Facial Trauma and Fracture Management
- Bone Tissue Engineering Materials
- Facial Nerve Paralysis Treatment and Research
- Dental materials and restorations
- Aluminum Alloys Composites Properties
- ZnO doping and properties
- Orthopaedic implants and arthroplasty
- Insurance and Financial Risk Management
- Ear and Head Tumors
- Dupuytren's Contracture and Treatments
Guangzhou University of Chinese Medicine
2025
Xiamen University
2024
Air Force Medical University
2007-2024
Xijing Hospital
2021-2024
Hohai University
2020-2024
State Council of the People's Republic of China
2019-2022
Shanghai Sixth People's Hospital
2013-2022
Shanghai Jiao Tong University
2021-2022
Guangdong Institute of New Materials
2021
Guangdong Academy of Sciences
2021
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 .
Dielectric materials with high energy density have attracted much attention due to their potential applications in modern electronics and electrical power systems. In this work, a large storage of 3.2 J/cm3 was achieved La/Mn codoped AgNbO3 antiferroelectric ceramics through enhancing the ferroelectric-antiferroelectric backward transition field reducing remnant polarization simultaneously. Moreover, coexistence Mn2+/Mn3+ at A-site disrupts randomly disordered Nb5+ temperature, leading...
The purpose of this study was to compare the shaping ability ProTaper Universal (PTU; Dentsply Maillefer, Ballaigues, Switzerland), WaveOne (WO; Maillefer) and Next (PTN; in simulated L-shaped S-shaped root canals respectively.30 30 resin blocks were employed randomly divided into 3 groups (n = 10), respectively. prepared a tip size 25 using PTU, WO or PTN: PTU F2 (taper 0.08 over first mm from apical tip), Primary PTN X2 0.06 tip). Photos taken pre- postinstrumentation. 2 layers...
BiFeO3-BaTiO3 ceramics possess both high electromechanical properties and a Curie temperature, which are promising temperature lead-free piezoactuator materials. However, the poor thermal stability of electrostrain limits their practical exploration. Here, we report stable 0.18% at 6 kV/mm, with variation 13% from 25 °C to 175 for (1-x)(0.67BiFeO3-0.33BaTiO3)-xSr0.8Bi0.1◻0.1TiO2.95 solid solutions x = 0.04. The addition relaxor ferroelectric Sr0.8Bi0.1◻0.1TiO2.95 (SBT) breaks long range...
A clamping domain structure is proposed to improve the amount of non-180° switching in BaTiO3 based piezoelectric ceramics. Experimental results show a large unipolar strain 0.23% at 5 kV/mm aged 0.5 mol. % Mn doped ceramics with structures, and normalized (d33* = Smax/Emax) reaches 600 pm/V low electric fields 2 or 3 kV/mm. In contrast, pure structures exhibit no clear polarization constriction enhancement Electron paramagnetic resonance spectra verify existence titanium vacancies, Mn2+...
The pursuit of electronic materials and devices with high dielectric breakdown strength (DBS), the clarification mechanism are great importance to scientific research industry applications.
Metal matrix composites (MMCs) have attracted extensive attention due to their excellent mechanical properties. However, the Portevin–Le Chatelier (PLC) behavior of MMCs considering interaction reinforced particles and dislocations is rarely reported. In present study, influence TiB2 ceramic on PLC systematically investigated in a TiB2/AlMg composite. It found that decrease critical strain at high rate (>0.01 s−1) compared with AlMg alloy, but difference becomes small rate. The dual effects...
This paper reports an optimized end-bonding magnetoelectric (ME) heterostructure FeCuNbSiB-PZT-FeCuNbSiB (FPF) for sensitive magnetic field sensor. The is made by attaching magnetostrictive Fe73.5Cu1Nb3Si13.5B9 (FeCuNbSiB) foils at the free ends of piezoelectric Pb(Zr1-x,Tix)O3 (PZT) plates. Due to structural advantages, FPF has ∼3.12 times larger resonance voltage coefficient (αME,r) than traditional FeCuNbSiB/PZT laminate. And compared with Metglas-PZT-Metglas heterostructure, stronger ME...
We demonstrate a three-axis vector magnetometer based on ensembles of negatively charged nitrogen vacancy centers in single-crystal diamond. A diamond with C3v symmetry was used to establish the coordinate system for magnetic field sensing. control external static Helmholtz coils. Four pairs resonance peaks were obtained, which calculate three Cartesian components sensitivity ~ 5 nT √Hz each component, free interaxis error. The is suitable single-chip manufacturing.
Abstract The field‐controlled phase transition is a promising concept for the design of novel multiferroic materials. Rare‐earth samarium‐modified bismuth ferrite (Bi 1− x Sm FeO 3 ) possesses morphotropic boundary (MPB) that has similar free energies between polar and nonpolar phases, making it an exceptional candidate. In this study, we investigated electric field cycling‐dependent behavior ferroelectricity in Bi ceramics near MPB. During cycling, significantly enhanced remanent...
In order to ensure the reliability of high heat-flux electronic devices, vapor chambers with double-sided uniform radial micro-grooved wicks (DURM) are developed. The driving force model working liquid inside DURM chamber is established. To enhance liquid, condensation micro-grooves and evaporation fabricated using an ultraviolet laser infrared laser, respectively. addition, startup characteristics temperature uniformity effect depth–width ratio radiation angle filling on its thermal...
4H-SiC-based metal-insulator-semiconductor (MIS) ultraviolet (UV) photodetectors with thermally grown SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> and evaporated Al O xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> /SiO (A/S) films are fabricated demonstrated as normally-off normally-on mode devices, respectively. Ultralow dark currents of 3.25 × 10 <sup xmlns:xlink="http://www.w3.org/1999/xlink">-10</sup> 9.75...
To illustrate the microstructural and histomorphological characteristics of osteophytes in human knee osteoarthritis (OA). Tibial plateau specimens, including subchondral trabecular bone (STB) from weight-bearing non-weight-bearing regions, were obtained 81 patients with OA after total arthroplasty surgery. All had varus deformity knee. Micro-CT was applied to evaluate microstructure tibial plateau, which segmented into 6 regions interest (ROIs). After micro-CT scanning, decalcified...
The purpose of this study was to evaluate the effect dental heat pressing on microstructure a glass–ceramic located in SiO 2 –K O–B O 3 –MgO–F system. DTA, SEM and XRD techniques mechanical testing methods were used. results confirmed that could be successfully pressed with commercial equipment. observation revealed crystals aligned along direction pressing. property higher than heat‐treated controls. It concluded heat‐pressing procedure led an anisotropic structure, which improve...