A5045004703- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advanced ceramic materials synthesis
- Luminescence Properties of Advanced Materials
- MXene and MAX Phase Materials
- Advanced materials and composites
- Crystallography and molecular interactions
- Glass properties and applications
- Solid State Laser Technologies
- Aluminum Alloys Composites Properties
- Thermal properties of materials
- Perovskite Materials and Applications
- Advanced Photocatalysis Techniques
- Semiconductor materials and devices
- Microwave Dielectric Ceramics Synthesis
- Nuclear materials and radiation effects
- Radiation Detection and Scintillator Technologies
- Catalytic Processes in Materials Science
- Boron and Carbon Nanomaterials Research
- Ammonia Synthesis and Nitrogen Reduction
- Gas Sensing Nanomaterials and Sensors
- GaN-based semiconductor devices and materials
- Ferroelectric and Piezoelectric Materials
- Bone Tissue Engineering Materials
- Analytical Chemistry and Sensors
China University of Mining and Technology
2025
Tsinghua University
2007-2024
Beijing University of Posts and Telecommunications
2011-2024
Tianjin University
2020-2024
Shanghai Institute of Technology
2024
State Key Laboratory of New Ceramics and Fine Processing
2017-2023
Tsinghua–Berkeley Shenzhen Institute
2022-2023
Zhengzhou Normal University
2022
Chongqing Technology and Business University
2022
Nanjing University
2022
Covalently bonded ceramics exhibit preeminent properties-including hardness, strength, chemical inertness, and resistance against heat corrosion-yet their wider application is challenging because of room-temperature brittleness. In contrast to the atoms in metals that can slide along slip planes accommodate strains, covalently require bond breaking strong directional characteristics covalent bonds. This eventually leads catastrophic failure on loading. We present an approach for designing...
The inherent brittleness of ceramics, primarily due to restricted atomic motions from rigid ionic or covalent bonded structures, is a persistent challenge. This characteristic hinders dislocation nucleation in thereby impeding the enhancement plasticity through dislocation-engineering strategy commonly used metals. Finding that continuously generates dislocations within ceramics may enhance plasticity. Here, we propose "borrowing-dislocations" uses tailored interfacial structure with...
We demonstrated that a new intermediate composition of Ba(1.55)Ca(0.45)SiO4 between the orthosilicates Ca2SiO4 and Ba2SiO4 yields best phosphor hosts, interesting luminescence properties can be found from Eu(2+) singly doped and/or Eu(2+)/Mn(2+) codoped phosphors. The phosphors excited by near-ultraviolet (nUV) light at wavelengths ranging 200 to 450 nm matching well with nUV light-emitting diode (LED) chips. As result fine-tuning activators different content couples ratios, tunable...
Multifunctional phosphors have significant application and scientific value are becoming a research hotspot in the field of luminescent materials. Herein, we report Mn4+-activated double-perovskite-type Sr2LuNbO6 multifunctional with excellent comprehensive properties fields optical temperature/pressure sensing w-LED lighting. The crystalline structure, elemental composition, optimal doping concentration, crystal-field strength, bandgap investigated detail, mechanisms concentration thermal...
The polyhedra distortion originating from the variation of [(Si,Al)O<sub>4</sub>] induced a red-shift Ce<sup>3+</sup> emission in CaSrSi<sub>1−x</sub>Al<sub>x</sub>O<sub>4</sub>:Ce<sup>3+</sup>,Li<sup>+</sup> phosphors.
Lithium-ion capacitors (LICs) have captured a lot of attention due to their ability meld the energy lithium-ion batteries (LIBs) with power supercapacitors (SCs). In this work, high performance LICs were fabricated by using core–shell MnO@C as anode and trisodium citrate-derived carbon (TSC) cathode. Half coin cells can deliver reversible specific capacity 973.14 mAh g–1 at 0.25 A after 200 cycles. The morphological structural evolution had been unveiled ex-situ characterizations. Electrode...
Abstract Highly dense α ‐silicon nitride (Si 3 N 4 ) ceramics were densified at a lower temperature of 1450°C under moderate mechanical pressure 50 MPa from commercial ‐Si powder and with conventional Al 2 O –Y sintering additives. The fabricated exhibited hardness 19 GPa, which is higher than that the β usually obtained. effect in liquid phase studied. role dissolution–reprecipitation process particle rearrangement during densification α‐Si discussed.
We fabricate transparent MgAl2O4 nano-ceramics, which are composed of 40 nm grains, by sintering under high pressure and low temperatures. Analysis the grain size, differential strains, yield strength porosity obtained from transmission electron microscopy x-ray diffraction indicates that pores at boundary triple junctions can retard migration thus prevent growth. It is found relatively density for nano-ceramics produced low-temperature attributed mainly to large energy in exteriors. The...
Structural and blue-green tunable luminescence properties of Ce<sup>3+</sup>/Li<sup>+</sup>,Eu<sup>2+</sup> singly doped Ce<sup>3+</sup>/Li<sup>+</sup>/Eu<sup>2+</sup>-co-doped CaSrAl<sub>2</sub>SiO<sub>7</sub> phosphors have been studied.