A5100382660- Advanced ceramic materials synthesis
- Advanced materials and composites
- Aluminum Alloys Composites Properties
- Molten salt chemistry and electrochemical processes
- High Temperature Alloys and Creep
- Boron and Carbon Nanomaterials Research
- Diamond and Carbon-based Materials Research
- Metallurgical Processes and Thermodynamics
- Fusion materials and technologies
- Graphite, nuclear technology, radiation studies
- Silicon Carbide Semiconductor Technologies
- Nuclear Materials and Properties
- Phase Change Materials Research
- Recycling and utilization of industrial and municipal waste in materials production
- Silicone and Siloxane Chemistry
- Surface Modification and Superhydrophobicity
- Intermetallics and Advanced Alloy Properties
- High-Temperature Coating Behaviors
- Magnesium Oxide Properties and Applications
- Ferroelectric and Piezoelectric Materials
- Bone Tissue Engineering Materials
- Graphene research and applications
- Additive Manufacturing and 3D Printing Technologies
- Aerogels and thermal insulation
Central South University
2021-2023
Shanghai Institute of Applied Physics
2020-2023
Chinese Academy of Sciences
2020-2023
University of Chinese Academy of Sciences
2021-2023
Innovation Research Center
2021-2022
Chaohu University
2013-2022
Anhui University
2013
Zhejiang University
2012
Fabricating SiC matrix with controllable Si/C ratio for C/C-SiC composites via precursor infiltration and pyrolysis is difficult to realize due the absence of suitable precursors. Here, precursors Si-rich (Si/C=1.23), near-stoichimetric (Si/C=1.01) C-rich (Si/C=0.88) pyrolyzed ceramics at 1200 °C were successfully synthesized by novel modification polymethysilane. The structure ceramization studied, similar in also fabricated. results revealed that defects Young's modulus thermal residual...
In this work, a silane coupling agent was used for surface modification of native nano-sized silicon nitride (Si3N4) powder. According to the spectra FT-IR and TGA, it can be inferred that covalently bonds on nano-Si3N4 particles an organic coating layer formed. The free energy experiments showed hydrophobic property modified with improved obviously. Analysis nanoparticle size TEM revealed possessed good dispersibility average diameter less than 100 nm.
In this work, based on the sol–gel and titration technology, an innovative method to prepare yttria stabilized ZrO2–Al2O3 composite beads which can greatly improve bead properties is proposed. Using method, samples with different proportion of alumina component were prepared tested. The density results show that ceramic very close theoretical value, implies new high compactness without containing pores. Vickers hardness higher than zirconia alumina. SEM analyses average grain size about 180...
The corrosion behavior of pressureless-sintered SiC in a molten NaCl-KCl-MgCl2 salt at 700 °C was investigated. Results indicate that it is prior for and sintering aid B around grain boundaries to be corroded. MgCl2 · xH2O (x = 4, 6) the plays an important role SiC. hydrolyzed HCl, H2O, MgO, which react with form C, SiO2, SiCl4, B2O3, Mg2SiO4. depth concentrations elements Si increase time, are fitted well Fick’s law diffusion.
In this work, based on the sol–gel titration technology, method to prepare composite beads with different diameters which range from 0.1 0.8 mm is researched. The detail studies preparation conditions include sol viscosity, specific gravity and size of discharge needle are proposed. relationships between final diameter prepared obtained. Scanning Electron Microscope (SEM) test results show that have uniform good sphericity. surface grains basically similar cross-section grains. No obvious...
Abstract In this work, based on the wet titration technology, an innovative method to prepare ZrO 2 -Al O 3 composite beads which can greatly improve bead properties is proposed. Using process, samples with different proportions of alumina component were prepared and tested. The bulk density test results show that new high compactness without containing pores. hardness higher than zirconia adding alumina. SEM analyses average grain size about 180 nm, much smaller by conventional rolling...