35 Result(s)
within
Yu-Qing **a
Metallic Materials
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Article
Two-dimensional metallic CoTe2 flakes for electrocatalytic hydrogen evolution
Two-dimensional (2D) metallic 1T-CoTe2 has attracted considerable attention due to its fascinating physical properties and promising applications in electronics and catalysis. However, the production of high-qual...
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Analysis of destructive effect of Zn on carbon brick and way of Zn into carbon brick
The service life of a blast furnace depends largely on the degree of damage to the carbon brick in the hearth. Carbon brick and ramming material in the hearth of a 1780 m3 blast furnace after shutdown were sample...
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Amorphous Sb/C composite with isotropic expansion property as an ultra-stable and high-rate anode for lithium-ion batteries
Antimony (Sb) is an intriguing anode material for Li-ion batteries (LIBs) owing to its high theoretical capacity of 660 mAh·g−1 and appropriate working potential of ~ 0.8 V (vs. Li+/Li). However, just like all al...
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A lithium–tin fluoride anode enabled by ionic/electronic conductive paths for garnet-based solid-state lithium metal batteries
The high energy density and stability of solid-state lithium metal batteries (SSLMBs) have garnered great attention. Garnet-type oxides, especially Li6.4La3Zr1.4Ta0.6O12 (LLZTO), with high ionic conductivity, wid...
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Article
2022 roadmap on hydrogen energy from production to utilizations
Hydrogen has been always the hot topic, which drives a lot of researchers to study and explore hydrogen-related projects and fields. The first subfield is hydrogen production with green and cost-effective mean...
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Microstructure Evolution and Recrystallization Behavior of Friction Stir Welded Thick Al–Mg–Zn–Cu alloys: Influence of Pin Centerline Deviation
Four tools with different pin centerline deviations were fabricated to friction stir weld (FSW) thick plates of Al–Mg–Zn–Cu alloys. The results show that, compared with the pin without pin centerline deviation...
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Analysis model for deformation mechanism of strip foundation of building: Considering shear effect of down-crossing tunnel under excavation
When the tunnel underpasses through the building, it will cause deformation and even damage to the buildings above, and the deformation of building foundation is the key to building safety. Based on the engine...
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Machine learning (ML)-assisted optimization do** of KI in MAPbI3 solar cells
Perovskite solar cells have drawn extensive attention in the photovoltaic (PV) field due to their rapidly increasing efficiency. Recently, additives have become necessary for the fabrication of highly efficien...
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Origin of low coercivity of high La–Ce-containing Nd–Fe–B sintered magnets
The origin of low coercivity of high La–Ce-containing Nd–Fe–B sintered magnets was analyzed based on characterization of the microstructure, magnetic domain structure, and magnetization reversal process. It ca...
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Ultrathin porous graphitic carbon nanosheets activated by alkali metal salts for high power density lithium-ion capacitors
Graphitic carbons with reasonable pore volume and appropriate graphitization degree can provide efficient Li+/electrolyte-transfer channels and ameliorate the sluggish dynamic behavior of battery-type carbon nega...
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Effect of adhesive on laser-arc hybrid welding of aluminum alloy to high-strength steel joint
Aluminum alloy 6061 and high-strength steel Q460 were joined by laser-arc-adhesive hybrid welding technology successfully. A Cu alloy interlayer was added between Al alloy and high-strength steel. The effect o...
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Article
Settlement characteristics of bridge approach embankment based on scale model test
In order to analyze the effects of backfill materials, geometries and slab setting on the settlement of bridge approach embankment, scale model was built based on the structural characteristics of bridge appro...
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Article
Numerical simulation of intelligent compaction for subgrade construction
During the compaction of a road subgrade, the mechanical parameters of the soil mass change in real time, but current research assumes that these parameters remain unchanged. In order to address this discrepan...
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Swelling characteristics of East-Africa black cotton soil based on computer molecular simulation
Black cotton soil in East Africa is not a stable engineering material for highway and railroad projects. Its strong swelling potential when it absorbs water causes distresses in subgrade of highway and railroa...
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Effect of cushion and cover on moisture distribution in clay embankments in southern China
To achieve durability of the embankment in southern China, a method to control the change of moisture content with the cushion and cover was proposed. A finite element model of cushion and cover considering di...
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Mechanical properties of fiber and cement reinforced heavy metal-contaminated soils as roadbed filling
The treatment of contaminated soil is a crucial issue in geotechnical and environmental engineering. This study proposes to incorporate appropriate polypropylene fibers and cements as an effective method to tr...
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Article
Stability analysis of cohesive soil embankment slope based on discrete element method
In order to study the safety factor and instability process of cohesive soil slope, the discrete element method(DEM) was applied. DEM software PFC2D was used to simulate the triaxial test to study the influenc...
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Structure and magnetic properties of nanocrystalline dysprosium powders
In this current study, nanocrystalline Dy powders were prepared by melt-spinning and subsequent high-energy ball-milling. The effect of ball-milling time on the structure and magnetic properties of the powders...
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Structure and intrinsic magnetic properties of Sm1−x Pr x Co5 (x = 0–0.6) compounds
In this work, the effects of Pr content on the structure and intrinsic magnetic properties of Sm1−x Pr x Co5 (x = 0–0.6) compounds prepared by indu...
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Observation on Formation of Fresh Martensite from the Reversed Austenite During Water-Quenching Process in Fe-0.2C-5Mn Steel
Phase transformation behavior during intercritical annealing in Fe-0.2C-5Mn was studied. Austenite lath formed and transformed at martensite lath during annealing. XRD revealed that retained austenite amount d...
