A5100718775- Metallic Glasses and Amorphous Alloys
- Theoretical and Computational Physics
- Glass properties and applications
- Material Dynamics and Properties
- Magnetic properties of thin films
- Phase-change materials and chalcogenides
- Magnetic Properties of Alloys
- Magnetic and transport properties of perovskites and related materials
- High-Temperature Coating Behaviors
- Magnetic Properties and Applications
- Electromagnetic wave absorption materials
- Magnetic Properties and Synthesis of Ferrites
- Non-Destructive Testing Techniques
- Advanced materials and composites
- Hydrogen embrittlement and corrosion behaviors in metals
- Diamond and Carbon-based Materials Research
- Corrosion Behavior and Inhibition
- Silicon Carbide Semiconductor Technologies
- Surface Roughness and Optical Measurements
- Microstructure and Mechanical Properties of Steels
- Semiconductor materials and interfaces
- Thermodynamic and Structural Properties of Metals and Alloys
- Multilevel Inverters and Converters
- Intermetallics and Advanced Alloy Properties
- Complex Systems and Time Series Analysis
Southeast University
2019-2024
Sichuan Provincial Hospital of Traditional Chinese Medicine
2024
China National Petroleum Corporation (China)
2023
Tongji University
2012-2020
Zhejiang University
2019-2020
Guizhou Electric Power Design and Research Institute
2020
Northwestern Polytechnical University
2017
Leibniz Institute for Solid State and Materials Research
2010-2013
TU Dresden
2013
Institute of Physics
2005-2010
Stress annealing is utilized for enhancing the magnetic softness of Fe83–xCoxB10Si3C3P1 (x = 0–16) amorphous alloys with saturation polarization up to 1.75 T. All stress-annealed exhibit improved soft-magnetic properties, including low coercivity 1.8–2.2 A/m, core loss 0.09–0.11 W/kg at 1.0 T and 50 Hz, high permeability 27,000–33,200 5 A/m 1 kHz. induces longitudinal anisotropy facilitates annihilation free volume, leading pinning-free domain wall motion, thus enhanced softness. The induced...
Annealing usually induces structural relaxation and reduction of liquid-like regions, leading to embrittlement in bulk metallic glasses (BMGs). Here, we find that the short-term high-temperature thermal cycling (HTC) annealed Zr41.2Ti13.8Cu12.5Ni10Be22.5 (Vit1) BMG shows an improved plasticity without sacrificing their yield strength. And only behavior with increased hardness is observed after HTC, which different from rejuvenation effect cryogenic (CTC). We revealed this reversal attributed...
The polyamorphsim in amorphous materials is one of the most fascinating topics condensed matter physics. In metals, nature polyamorphic transformation poorly understood. Here we investigate structural evolution a Ce-based metallic glass (MG) with pressure at room temperature (RT) and near transition by synchrotron X-ray diffraction, uncovering novel behaviours. MG shows hierarchical densification processes both temperatures, arising from hierarchy interatomic interactions. contrast...
Secondary (slow β) relaxation and structural heterogeneity are crucial in several critical unresolved issues metallic glasses (MGs). However, their intrinsic correlations composition dependence not established despite extensive work for decades. In this work, we modulated the secondary of Dy-based bulk MGs by microalloying different metalloids (B, C, N, Si) demonstrated atomic-scale mechanism. We shed light on effects enthalpy mixing, degree elastic micrometer scale, intensity interaction,...
The nature of the magnetic state strong random anisotropy (RMA) remains elusive. It is unclear whether RMA and Ising spin glass systems belong to same class or not. Here, we demonstrate, by investigations static, critical, slow dynamic properties a Dy-base bulk metallic (BMG), can be classified universal different from glass. results have implication for understanding connection between subtle role in transition disorder frustrated systems. On other hand, our study has significance...
We study the effects of amorphous structure and random anisotropy on magnetic entropy change in a series Tb-based alloys. The broadens peak facilitates adjustment properties. above spin freezing temperature first depends average moment approximately linearly second exchange interaction anisotropy. Large broad reversible negative changes are observed giant positive irreversible which associate with internal production obtained well below.
Rapid annealing (RA), or the application of a high temperature for short duration, is an efficient strategy to promote nano-crystallization Fe-based amorphous alloys and improve their soft magnetic properties. Herein, ternary Fe-Co-B alloy investigated as typical system reveal effect RA on crystallization behavior It found that large superheating generated during significantly increases homogenous nucleation rate nanocrystals, while duration greatly inhibits growth kinetics, yielding fine...
Enhanced oil recovery draws increasingly interests from the research and development phases to oilfield implementation worldwide. Due complexity of developed reservoirs requirement carbon footprint reduction, new innovations are urgently needed increase enhanced efficiency and/or reduce emissions simultane- ously. This paper presents strategies improve performance dioxide flooding, polymer flooding imbibition in complex reservoirs. Field trials conducted at Mahu demonstrated potential...
A series of new families heavy rare-earth (RE) based bulk metallic glasses (BMGs) with excellent glass-forming ability and high thermal stability have been obtained by a copper mold casting method. Compared the light RE-based BMGs, BMGs much higher glass transition crystallization temperatures elastic moduli. It is found that closely correlated constants in BMGs. The correlations are useful for guiding BMG-forming alloy design to enhance stability.