A5026502429- Nuclear Materials and Properties
- Semiconductor materials and devices
- Fusion materials and technologies
- Boron and Carbon Nanomaterials Research
- Advanced ceramic materials synthesis
- Nuclear materials and radiation effects
- Hydrogen Storage and Materials
- High-Temperature Coating Behaviors
- Metal and Thin Film Mechanics
- Gas Sensing Nanomaterials and Sensors
- Nanowire Synthesis and Applications
- Graphene research and applications
- Catalytic Processes in Materials Science
- Magnesium Oxide Properties and Applications
- Advancements in Solid Oxide Fuel Cells
- Electronic and Structural Properties of Oxides
- Diamond and Carbon-based Materials Research
- Hydrogen embrittlement and corrosion behaviors in metals
- High-pressure geophysics and materials
- ZnO doping and properties
- Plasma Diagnostics and Applications
- Advanced materials and composites
Huazhong University of Science and Technology
2021-2025
Ceramic coatings that can effectively prevent hydrogen permeation have a wide range of applications in energy and nuclear fusion reactors. In this study, for the first time, internal stress Er2O3 was found to be key factor could determine their resistance lifespan. The controlled by designing layered coatings. increased with an increasing number layers. When layers below 15, did not adversely affect coating performance might help increase its resistance. Although overall thickness 15-layer...
Abstract Hydrogen embrittlement in metals seriously threatens the safe and durable operation of hydrogen energy. Developing efficient robust barriers is a viable solution to solve this issue but remains significant challenge. An amorphous (ErAlCrZrTi)O high‐entropy nanofilm successfully fabricated via sol‐gel on steel identified as highly barrier. At 270 nm thickness, achieves ultra‐low permeability 1.35 × 10 −15 mol m −1 s Pa −0.5 , enhancing resistance by 2738 times at 500 °C compared with...
Abstract Hydrogen isotope permeation through structural materials is a key issue for developing nuclear fusion energy, which will cause fuel loss and radioactive pollution. Developing ceramic coatings with high thermal shock hydrogen resistance an effective strategy to solve this issue. In work, layer-structured Cr/Cr x N coating was successfully fabricated by facile electroplating-based nitridation technique, easy, facile, applicable complex-shaped substrates. The coating, composed of...
Abstract Hydrogen isotope permeation in structural steels can cause severe issues, including steel brittleness, fuel loss, and radioactive pollution fusion reactors. To tackle this issue, we report a simple synthesis of α‐Al 2 O 3 /AlPO 4 composite coating by the thermochemical reaction method to serve as an effective barrier hampering hydrogen permeation. This was formed at 500°C composed AlPO phases. A relatively uniform compact structure with thickness ∼35 μm made its corrosion resistance...
Abstract The trade-off between ultrahigh speed and low operating voltage is a major challenge in the continuous improvement of modern electronics. Although micro/nano plasma devices have demonstrated potential picosecond switching high output power, surpassing traditional electronic devices, versatile methods for optimizing are highly desired. Here, an optimization scheme based on work function electrode materials reported, which reduces improves speed. Compared with methods, such as...
Abstract In this study, a Cr 2 O 3 nanosheet (Cr NS) inserted Cr-Zr-O coating was developed as hydrogen isotope permeation barrier. The NSs, fabricated by rapid heat treatment, were amorphous with thickness of only several nanometers. These NSs then incorporated into multi-metal oxide composite via dip-coating method to form coating. effect the NS concentration on morphology, microstructure and deuterium resistance studied. With addition 1.0 g l −1 compared without reduction factor resultant...