A5101831719- High-Temperature Coating Behaviors
- Nuclear Materials and Properties
- Nuclear materials and radiation effects
- Advanced ceramic materials synthesis
- Magnetic properties of thin films
- ZnO doping and properties
- Solar and Space Plasma Dynamics
- Astro and Planetary Science
- Microwave Dielectric Ceramics Synthesis
- Catalytic Processes in Materials Science
- Semiconductor materials and devices
- Surfactants and Colloidal Systems
- Hydrogen Storage and Materials
- Catalysts for Methane Reforming
- Advanced Polymer Synthesis and Characterization
- Innovative Microfluidic and Catalytic Techniques Innovation
- Electrocatalysts for Energy Conversion
- Electromagnetic Launch and Propulsion Technology
- Ionosphere and magnetosphere dynamics
- X-ray Diffraction in Crystallography
- Advanced materials and composites
- Stellar, planetary, and galactic studies
- Particle Dynamics in Fluid Flows
- Advanced Sensor and Control Systems
- 3D Printing in Biomedical Research
Xi'an Jiaotong University
2017-2024
Chinese Academy of Sciences
2008-2023
University of Chinese Academy of Sciences
2013-2023
Wuhan Institute of Physics and Mathematics
2022
State Key Laboratory of New Ceramics and Fine Processing
2013-2021
Tsinghua University
2012-2021
Sun Yat-sen University
2021
Capital University
2021
Capital Medical University
2021
Tianjin Medical University Cancer Institute and Hospital
2021
In the pursuit of low thermal conductivity materials for management, one always tries to increase material entropy by increasing number components in scatter heat-carrying phonons. However, it also drastically increases technological complexity synthesize with target complex composition. Here, a family is presented simple composition Ln3 NbO7 , which only contains binary oxides Ln2 O3 (Ln = Dy, Er, Y, Yb) and Nb2 O5 . The conductivities approach theoretical minimum limit, where large...
Hydrogel microparticles are important in materials engineering, but their applications remain limited owing to the difficulties associated with manipulation. Herein, we report self-orientation of crescent-shaped hydrogel and elucidate its mechanism. Additionally, were used, for first time, as micro-buckets carry living cells. In aqueous solution, spontaneously rotated a preferred orientation cavity facing up. We developed geometric model that explains self-orienting behavior particles by...
Abstract Rare earth niobate (RE 3 NbO 7 , RE = Dy, Y, Er, Yb) ceramics have shown extremely low thermal conductivity but remain questionable in high temperature barrier coating (TBC) applications with thermal, mechanical, and chemical loads. Herein, we comprehensively characterize the properties of rare niobates, including mechanical properties, oxygen stability, etc. It is found that conductivities niobates are three orders magnitude lower than 7wt.% yttria‐stabilized zirconia (YSZ),...
TiO 2 ‐doped Y O 3 ‐stabilized ZrO compounds with low thermal conductivity have been considered as a promising barrier coating material. In the present research, series of synthesized and investigated. Lattice distortion disordering caused by doping were observed their effects on mechanical properties, such fracture toughness, elastic modulus, coefficient expansion (CTE), also enhanced ferroelastic toughening whereas variation in modulus CTE is due to lattice disordering. The combination...
Dense monoliths of rare‐earth zirconate‐stannate solid solutions (Yb 2 Zr O 7 ) 1− x (Ln Sn = Nd, Sm) were prepared by solid‐state reaction. Characterized XRD, Raman, SEM, and TEM, a double‐phase structure Yb ‐rich fluorite Nd pyrochlore was observed in the specimens 0.4 0.5 (Nd series while complete formed within whole composition range (Sm series. Except for defect phonon scattering, lattice softening caused order–disorder phase transformation between structures also plays an important...
Rapid magnetic changes in the course of X7.1 solar flare on 2005 January 20 at photosphere host active region (AR), NOAA AR 10720, are diagnosed. The database for this study consists Huairou vector magnetograms, Transition Region and Coronal Explorer (TRACE) white light UV/EUV images, RHESSI hard X-ray, Solar Heliospheric Observatory EUV observations. For such an event that is close to but not west limb (N12 W58), projection effects observed magnetograms untangled by combining intuitive...
Considering the phonon scattering effect and stability of t′ zirconia, Sn 4+ ion is recognized as an appropriate dopant to achieve best combination thermal insulating capability durability yttria‐stabilized zirconia barrier coatings (TBCs). In this research, unusual lattice expansion strong structural disordering were observed in a series SnO 2 ‐doped Y O 3 ‐stabilized ZrO compounds, which are caused by tetragonal distortion oxygen coordination. Phonon due rather than point defects...
Abstract Yttria‐stabilized zirconia (YSZ) has been considered as state‐of‐the‐art material for high‐temperature thermal barrier coatings, which provide insulation to the superalloy components in gas turbines and jet engines. Oxygen vacancies induced by yttria substitutions are believed be mainly responsible low conductivity of YSZ due their phonon scattering effect. However, high mobility oxygen leads a rapid diffusion at temperatures, therefore accelerates failure coatings grain coarsening,...
Abstract Hydrogel microparticles are important in materials engineering, but their applications remain limited owing to the difficulties associated with manipulation. Herein, we report self‐orientation of crescent‐shaped hydrogel and elucidate its mechanism. Additionally, were used, for first time, as micro‐buckets carry living cells. In aqueous solution, spontaneously rotated a preferred orientation cavity facing up. We developed geometric model that explains self‐orienting behavior...
Finding an energy-efficient way of switching magnetization is crucial in spintronic devices, such as memories. Usually, spins are manipulated by spin-polarized currents or voltages various ferromagnetic heterostructures; however, their energy consumption relatively large. Here, a sunlight control perpendicular magnetic anisotropy (PMA) Pt (0.8 nm)/Co (0.65 nm)/Pt (2.5 nm)/PN Si heterojunction manner proposed. The coercive field (HC ) altered from 261 to 95 Oe (64% variation) under...
Observations of the quiet Sun from Solar Optical Telescope/Spectro-Polarimeter aboard Hinode spacecraft reveal magnetic characteristics solar photosphere. By making use deep-mode observations three regions, we have statistically studied vector fields granulation. More than 2000 normal granules are manually selected to form a sample. It is recognized that some even darker mean photosphere in intensity, and there linear correlation between intensity Doppler velocity granules. The distributions...