A5030442532- Nuclear Physics and Applications
- Advanced Battery Materials and Technologies
- Atomic and Subatomic Physics Research
- High Entropy Alloys Studies
- Advancements in Battery Materials
- Additive Manufacturing Materials and Processes
- High-Temperature Coating Behaviors
- High-pressure geophysics and materials
- Multiferroics and related materials
- X-ray Diffraction in Crystallography
- Thermal Expansion and Ionic Conductivity
- Radiation Detection and Scintillator Technologies
- Aluminum Alloy Microstructure Properties
- Non-Destructive Testing Techniques
- Welding Techniques and Residual Stresses
- Ferroelectric and Piezoelectric Materials
- Advanced Condensed Matter Physics
- Shape Memory Alloy Transformations
- Magnetic and transport properties of perovskites and related materials
- Solar and Space Plasma Dynamics
- Advanced NMR Techniques and Applications
- Transition Metal Oxide Nanomaterials
- Geological and Geophysical Studies
- Intermetallics and Advanced Alloy Properties
- Advanced MRI Techniques and Applications
Institute of High Energy Physics
2017-2024
China Spallation Neutron Source
2017-2024
Chinese Academy of Sciences
2016-2024
University of Science and Technology Beijing
2020-2024
Institute of Solid State Physics
2016
The electronic entropy enhanced giant barocaloric effect along with high thermal conductivity in hexagonal Ni<sub>1−x</sub>Fe<sub>x</sub>S.
Clarifying the effects of atomization gases on mechanical properties and their interactions with scanning strategies is vital importance in additively manufactured materials. In present work, two batches 304L specimens, i.e., N2-specimens Ar-specimens, were produced by laser powder bed fusion using stainless steel powders atomized argon (Ar-powder) or nitrogen (N2-powder), respectively. The Ar-specimens have similar microstructures finer grains, which do not change strategies, while...
The general purpose powder diffractometer (GPPD) is the first at China Spallation Neutron Source (CSNS). Its aim to provide a high-resolution, good-intensity instrument for users study crystallographic and magnetic structures. best resolution will be better than 0.2% high-angle detector bank. neutron flux sample position order of 107 n/s/cm2. joint beam commissioning among accelerators, target station instruments started in CSNS on November 1, 2017. shutter was opened time. Initial...
Neutron diffraction has become a well-established technique for the determination of residual stresses in various structural materials and bulk industrial products because unique deep penetration, three-dimensional mapping capability, volume averaged measurements characteristic scattering neutron beam. To conduct experiments this research area, stress measurement system was established on general purpose powder diffractometer (GPPD) at China Spallation Source (CSNS), which now combines both...
The neutron Bragg-edge imaging is expected to be a new non-destructive energy-resolved technique for quantitatively two-dimensional or three-dimensional visualizing crystallographic information in bulk material, which could benefited from pulsed source. Here we build system on the General Purpose Powder Diffractometer at China Spallation Neutron Source. residual strain mapping of bent Q235 ferrite steel sample has been achieved with spectral resolution 0.15% by time-of-flight this system....
We report results from a study of the crystal and magnetic structures strontium-doped BiFeO3using neutron powder diffraction Rietveld method. Measurements were obtained over wide range temperatures 300-800 K for compositions between 10%-16% replacement bismuth by strontium. The show clear variation two main structural deformations-symmetry-breaking rotations FeO6octahedra polar ionic displacements that give ferroelectricity-with chemical composition, but relatively little with temperature....
Hierarchical microstructures spanning from micro-sized eutectic structure to nano-sized precipitates are promisingly engineered in lightweight Al alloys improve the high-temperature creep resistance that is increasingly required for rapid industrial development. However, intrinsically-brittle phase ready fracture upon applied loading, which, dramatically reducing room-temperature ductility and toughness, greatly hampers practical applications of creep-resistant alloys. Here, through...
Strain engineering is an alternative to chemical modification in manipulating functionalities of materials. Here, we report the lattice strain could relax abrupt phase transition (Ni1−xFex)1−δS and lead excellent negative thermal expansion (NTE) effect. The high-resolution scanning transmission electron microscope extended x-ray absorption fine structure unambiguously demonstrate that parallel Ni3S4-type nanosheets be introduced into matrix by increasing δ value. By forming Ni(Fe)-S-Ni(Fe)...
Ring artifacts will happen mostly when the detector has inconsistent response among channels, and characteristic produced rings centered in iso-center reconstructed slices inevitably affect recognition analysis of corresponding sample structures neutron computed tomography (CT). In this work, a ring correction method based on projection-field (RCP) is proposed, it pre-processing provides corrected projection data directly, which also conducive to efficient storage other algorithmic...
In layered LiNixMnyCozO2 cathode material for lithium-ion batteries, the spins of transition metal (TM) ions construct a two-dimensional triangular networks, which can be considered as simple case geometrical frustration. By performing neutron powder diffraction experiments and magnetization measurements, we find that long-range magnetic order cannot established in even at low temperature 3 K. Remarkably, frustration parameters these compounds are estimated to larger than 30, indicating...