A5103121454- Metallic Glasses and Amorphous Alloys
- Aluminum Alloy Microstructure Properties
- Material Dynamics and Properties
- Theoretical and Computational Physics
- Glass properties and applications
- Metal and Thin Film Mechanics
- Microstructure and mechanical properties
- High-Temperature Coating Behaviors
- Magnetic properties of thin films
- Natural Language Processing Techniques
- Aluminum Alloys Composites Properties
- Magnesium Alloys: Properties and Applications
- Pharmacological Effects and Assays
- Analytical Chemistry and Chromatography
- Fault Detection and Control Systems
- Topic Modeling
- Boron and Carbon Nanomaterials Research
- Domain Adaptation and Few-Shot Learning
- Copper Interconnects and Reliability
- Grey System Theory Applications
- Phase-change materials and chalcogenides
- Energy, Environment, Economic Growth
- Magnetic Properties and Synthesis of Ferrites
- Hydrogen embrittlement and corrosion behaviors in metals
- Advanced Text Analysis Techniques
Central South University
2023-2024
Air Force Engineering University
2023
Center for High Pressure Science and Technology Advanced Research
2018-2022
Xi'an Medical University
2018
Northwest Normal University
2014
Abstract Metallic glasses are expected to have quite tunable structures in their configuration space, without the strict constraints of a well-defined crystalline symmetry and large energy barriers separating different states crystals. However, effectively modulating structure metallic is rather difficult. Here, using complementary situ synchrotron x-ray techniques, we reveal thermal-driven structural ordering Ce 65 Al 10 Co 25 glass, reverse disordering process via pressure-induced...
Recently, an irreversible polymorphic transition from face-centered cubic to hexagonal close-packing was surprisingly observed under high pressure in the prototype CoCrFeMnNi high-entropy alloys (HEAs) by various research groups. This unexpected phase brings new insights into stability of HEAs, and its irreversibility stimulates exploration for HEAs via high-pressure compression synthesis. However, onset reported fluctuate over a vast range ∼7 above 49 GPa experiments. The reason this...
The fundamental relationships between the structure and properties of liquids are far from being well understood. For instance, structural origins many liquid anomalies still remain unclear, but liquid-liquid transitions (LLT) believed to hold a key. However, experimental demonstrations LLTs have been rather challenging. Here, we report theoretical evidence second-order-like LLT in molten tin, one which favors percolating covalent bond network at high temperatures. observed transition...
Free volume is one of the key structural concepts widely used to describe various glass phenomena. However, free challenging be rigorously defined in structures and directly determined by experiments. Here, we employed metallic as a simple model system studied evolution an as-spun (hyperquenched) another thermally annealed with different amounts situ high-pressure synchrotron x-ray diffraction. Therefore, effect on compression behavior glasses can clarified comparing two samples at identical...
As a prototype refractory and hard transition-metal carbide, the stability of zirconium carbide (ZrC) under extreme conditions is critical for its applications. Despite extensive theoretical studies, few experimental results are available until now. In this work, we carried out comprehensive study ZrC in large unexplored pressure–temperature region (up to ∼150 GPa ∼2000 K) by combining situ high-pressure high-temperature synchrotron radiation X-ray diffraction with various ex...
Abstract An open‐tubular capillary electrochromatography method has been developed for the determination of binding constants between β 2 ‐adrenergic receptor ( ‐AR) and seven drugs . ‐AR was oriented immobilized onto one part inner surface via microwave‐assisted technical synthesis. According to linear relationship coating length apparent mobility analyte, constant K b ) can be obtained by related theories equations. The order values such as adrenaline hydrochloride, norepinephrine...
Freestanding metallic nanosheets (or 2D metals) have been attracting tremendous research interest because of their potential applications in numerous important fields, such as green energy, biomedical imaging, and nanodevices. However, thermal stability metals received much less attention remains an open issue to resolve. Here, we report the first synthesis large-area freestanding carbon-containing gold by polymer surface buckling-enabled exfoliation (PSBEE). Through a systematic study based...
Most unsupervised domain adaptation (UDA) methods align feature distributions across different domains through adversarial learning. However, many of them require introducing an auxiliary alignment model, which incurs additional computational costs. In addition, they generally focus on the global distribution and ignore fine-grained discrepancy, so target samples with significant shifts cannot be detected or processed for specific tasks. To solve these problems, a bi-discrepancy network is...
Spatial heterogeneity, as a crucial structural feature, has been intensively studied in metallic glasses (MGs) using various techniques, including two-dimensional nanoindentation mapping. However, the limiting spatial resolution of mapping on MGs remains unexplored. In this study, comprehensive study four representative with Berkovich indenter was carried out by considering influence normalized indentation spacing d/h (indentation spacing/maximum depth). It appeared to have no significant...
To address the problem that most deep learning-based aero-engine RUL prediction models only consider temporal feature extraction and ignore spatial extraction, GCN is introduced into LSTM, network information layered by designing main oblivious gate input gate. The features embedded in sensor data species are processed using GCN, whereas LSTM deals with apparent trends. hybrid layer simultaneously performs of spatio-temporal multi-sensor extracted. Finally, quantile regression utilized for...
The pressure effect on structures and properties of a Fe78Si9B13 metallic glass was investigated by in situ high-pressure synchrotron Fe Kβ x-ray emission spectroscopy diffraction, electrical resistivity measurements up to ∼51 GPa. study reveals reversible continuous pressure-induced high- low-spin crossover atoms an amorphous structure. changes the local spin moment can be scaled match its average atomic distance shrinkage very well during compression. electronic states resembles that...
Recently, solid-state amorphization through temperature-induced martensitic transition has been reported. The stability of the amorphous martensite phase, which co-exists with a crystalline counterpart, is intriguing but remains unclear. In this work, we studied structural Ti59.1Zr37Cu2.3Fe1.6 alloy by combining in situ high-pressure synchrotron x-ray diffraction ex transmission electron microscopy. During compression at room temperature, an irreversible pressure-induced crystallization...