bluuebunny/crossref_metadata_2025_split huggingface dataset:
Rheological Properties of Desulfurized Crumb Rubber Modified Warm Mix Asphalt
Authors: Yuan Zhaodi , Sun Qirun , Huang Junrui , Zhang Zhaojie , Zhang Huan , Li Xian 
Published: August 2023

Abstract
In order to study the rheological properties of warm mix asphalt modified by desulfurized rubber powder with different meshes, the desulfurized rubber powder was mixed with matrix asphalt at the best content. Dynamic shear rheological test (DSR) was used to study the high temperature rheological properties of asphalt modified by waste rubber powder. Multi-stress creep test (MSCR) was used to study the high temperature deformation resistance of asphalt modified with waste rubber powder. The low temperature rheological properties of Sasobit and crumb rubber modified asphalt with different mesh numbers were evaluated by bending beam rheological test (BBR). The test results show that compared with the base asphalt, the complex modulus and rutting factor of CRMA 60 are significantly improved, and the effect is more obvious than that of CRMA 40 and CRMA 80. With the addition of Sasobit, the high temperature performance of WCRMA first increased and then decreased. With the addition of Sasobit, the creep stiffness modulus of WCRMA decreases, the creep rate increases, and the low-temperature properties first increase and then decrease. From the atomic force microscope (AFM), it can be seen that Sasobit promotes the compatibility between rubber powder and asphalt, and the performance of asphalt modified by 60 mesh rubber powder is best. When the mass fraction of Sasobit is 2.5%, WCRMA has the best comprehensive performance.
Optimization of Grain Boundary Character Distribution of Fe-19Cr-10Mn-1Ni-0.53N High Nitrogen Austenitic Stainless Steel
Authors: Shi Feng , Fan Chengxue , Guan Xianjun , Liu Chunming , Li Xiaowu 
Published: August 2023

Abstract
High nitrogen austenitic stainless steel (HNASS) has outstanding mechanical properties, but in its hot working, welding, and high-temperature use, there will be a precipitation phase, especially nitride precipitation that reduces its intergranular corrosion, stress corrosion, corrosion fatigue, and other grain boundary-related properties. At present, the traditional methods of suppressing precipitation phase precipitation, such as solution treatment and alloying, have drawbacks. Grain boundary character distribution (GBCD) optimization of Fe-19Cr-10Mn-1Ni-0.53N HNASS was characterized by electron backscatter diffraction (EBSD) in this work. This study reveals that after grain boundary engineering (GBE) treatment, the percentage of low Σ coincidence site lattice (CSL) boundaries of the solid solution treated sample rises from 53.94% to 82.41%, because the sample was cold-rolled (CR) by 5%, followed by annealing at 1423 K for 10 min, and the twin related domains (TRD) size increases from 23.99 μm to 169.82 μm and ν (the ratio of TRD size to grain size) raises from 1.74 to 7.52. The connectivity of the random high-angle grain boundary (RHAGB) web is interrupted and the GBCD of the experimental steel is remarkably optimized.
Blending Compatibility Simulation of UV-thermal Curing Solution with Epoxy Resin
Authors: Chen Fengjun , Liu Fan , Du Xiaogang 
Published: August 2023

AbstractTo make a UV-thermal curing solution based on bisphenol A, epoxy acrylate (EA) and epoxy resin of diglycidyl ether of bisphenol A (DGEBA) were uniformly mixed. The Blends module in the Materials Studio software was used to carry out molecular dynamics simulation of blending compatibility and evaluate the rationality to achieve UV-thermal curing through interaction parameters, binding energy, and phase diagram. The binding energy distribution of DGEBA and EA is not consistent at 298 K, and the interaction parameter is 6.4335. When the temperature rises to 365 K, the interaction parameter diminishes to 3.5795. The compatibility of the UV thermal curing solution is improved by changing the molar ratio of DGEBA and EA to 0.45 and raising the temperature to 340 K. The results can be used to guide and predict the UV-thermal curing process and properties of epoxy resin.
Preparation technology and experiments of textile lattice sandwich composites
Authors: Hu Wei , An Xiyue 
Published: August 2023

Abstract
Textile lattice sandwich composite (TLSC) with excellent debonding resistance has been widely investigated. In this paper, the preparation technology of TLSC was improved by foam filling technology, namely hand lay-up and vacuum infusion process, and the flexural properties were studied. The microscope images of TLSC specimens were observed. The structure and resin distribution of TLSC specimens prepared by the above technology was compared. Three-point bending experiments studied the bending properties of foam-filled specimens. The results show that the TLSC specimen prepared by the vacuum infusion process has more resin distribution and high-quality structural form. The obvious resin-rich region appears on the TLSC specimen prepared by hand lay-up. The foam-filling technology can significantly enhance the strength and stiffness of the structure.
Design Technique of the Test Static for Large Curvature Composite Radome
Authors: Hu Botao , Cheng Linan , Sun Xiaobo , Deng Fanchen 
Published: August 2023

Abstract
The radome is an important component that maintains the aerodynamic shape of the aircraft, makes the electrical property stable, and ensures flight safety. Composite is used in most aircraft radome in the world to reduce the weight of the aircraft. For the sake of safety, a static strength test was usually conducted on the radome to verify whether its strength and stiffness meet the requirements. In this paper, the load was treated equivalently, and a lever loading system of nonparallel force was put forward considering the characteristics of the large curvature of the radome structure and that it was difficult to apply load. All test cases were completed successfully, and the test results indicate that the test system works stably and reliably, and the strength and stiffness of the radome meet the design requirements.
Study on the Effect of Free-edge Conditions on Bending Properties of Composite Materials
Authors: Lou Chen 
Published: August 2023

Abstract
The glass fiber is selected as the reinforcement, and the structural design of the composite is carried out to enhance the continuity of the edge fiber of the laminate. The influence of the width of the edge fiber on the bending mechanical properties is discussed. It is found that when the edge fiber of the laminate is continuous, the failure mode of the laminate bending can be changed to a certain extent, and the strength of the reinforcement and the matrix bonding is strengthened. The width of the laminate is not the influence factor in improving the bending strength.
Glass-forming ability and properties of Hf-Cu-Ni-Al-Ag bulk metallic glasses
Authors: Zhou Bingwen , Sun Qianya , Zhu MengQi , Meng Linggang , Bin Ya , Zhang Xingguo 
Published: August 2023

Abstract
A new Hf-based Hf-Cu-Ni-Al-Ag glassy alloy was synthesized to be formed by copper mold casting. The influence of Ag addition on the properties of Hf48Cu29.25Ni9.75Al13-xAgx (x=0-5at%) glassy alloys was studied by differential scanning calorimeter, X-ray diffractometer, quasi-static compression, and electrochemical corrosion test. The experimental results show that adding Ag can improve the thermal stability and glass-forming ability of glassy alloys. The Hf48Cu29.25Ni9.75Al12Ag1 exhibits the best glass-forming ability with a critical diameter of 12 mm and the highest compressive strength (2363 MPa) among glassy Hf48Cu29.25Ni9.75Al13-xAgx (x=0-5at%). The total plastic deformation of Hf48Cu29.25Ni9.75Al12Ag1 before fracture approaches 4%. In addition, there is a passivation interval of about 3 V for Hf48Cu29.25Ni9.75Al12Ag1 glassy alloy in 1 mol/L H2SO4 solution, which makes the passivation film more stable and increases the corrosion resistance. In 1 mol/L KOH solution, the corrosion tendency and rate decreased with the addition of Ag content, leading to increased corrosion resistance.
Introduction study on the influence of residual stress on contact stiffness of joint surface
Authors: Chen Shun 
Published: August 2023

Abstract
The effects of residual stress on material properties can be divided into two main categories: its influence on material strength, such as fatigue, and its influence on harmful deformation, such as dimension deviation during or after processing. To investigate the effects of residual stress on the mechanical properties of material components, we select a simple structure that underwent loading and unloading cycles. In our finite element numerical simulation, we establish both a macroscopic solid model and an asperity model. Three different models are chosen, and load-displacement curves are obtained. The effects of residual stress on the stiffness of the contact surface are analyzed. Our results show that residual stress has a significant impact on the stiffness of the joint surface, from macroscopic to microscopic perspectives. Specifically, stiffness increases with residual stress when it is tensile stress.
Study on surface nitriding treatment of the sintered SUS430 ferritic stainless steel
Authors: Wang Yuanxin , Li Mengyong , Zhang Dongxu , Xia Ming 
Published: August 2023

Abstract
Ferritic stainless steels with the advantages of high thermal conductivity, low expansion coefficient, excellent oxidation resistance, resistance to stress corrosion capacity, and low cost are widely applied. The parts are prepared by powder metallurgy with SUS430 ferritic stainless steel. Under an H2 protective atmosphere, the compactions are sintered at 1300 °C, and the density of the as-sintered sample achieves 7.4 g/cm3. Then, high-temperature solid solution nitriding treatment is carried out at 1110 °C under an N2/H2 mixed atmosphere. The nitride layers are formed on the surface of the samples. The thickness of nitride layers is about 130–150 μm, and its microhardness is 490 HV. Moreover, it suggests that gas nitriding treatment can effectively improve surface hardness and wear resistance. Still, the core matrix with ferritic microstructure maintains good plasticities and ductilities, and its hardness is about 126 HV.
Cause Analysis of Leakage Failure of Seamless Steel Pipe during Pipeline Pressure Test
Authors: Xu Yan , Nie Xianghui , Feng Zhenjun , Li Liang , Chang Yonggang , Bai Qiang , Yang Fengping 
Published: August 2023

Abstract
By means of chemical analysis, tensile test, metallographic analysis, and energy spectrum analysis, the leakage causes of seamless steel pipe in the process of pipeline pressure test were analyzed. The analysis shows that the crack of steel pipe appears before rolling, and the non-metallic inclusions near the crack are the crack source or preferred path of steel pipe cracking. The leakage of steel pipe defects in the subsequent eddy current and ultrasonic inspection is one of the main reasons the unqualified steel pipe flows into the construction site and leads to the leakage of the pressure test.
Effects of Surface/Dislocation/Phase Transition on Fracture Energy in Nanoporous Metal
Authors: Ren Siyu , Ru Yan , Wang Ruru , Ma Qiaoyan 
Published: August 2023

Abstract
The internal ligament will undergo severe deformation and fracture when the nanoporous metal is loaded. Molecular dynamics simulates the uniaxial tensile fracture of a single ligament model of nanoporous copper at the atomic level. The side effect of the fracture energy of nanoporous metal ligaments and the relationship between the porosity of nanoporous metal and the fracture energy are explored. On this basis, the fracture toughness of nanoporous metal was obtained. The results show that phase transition is ligament tensile fracture’s main energy consumption mode. And the average proportion of phase transition energy in fracture energy is 61%. The fracture energy of nanoporous metal ligaments has an obvious size effect. Last, the fracture toughness of nanoporous metal with different porosity is given.
Wrinkle Prediction of Membrane Structures under Uniform Normal Tensions
Authors: Liu Mingjun , Zhang Weiliang , Shi Xiaofeng , Li Meng 
Published: August 2023

Abstract
Wrinkles always produce to counteract the compressive stress in the thin membrane structures, which has become a popular topic. In this paper, for the inhomogeneous membrane structure with depth-dependent Young’s modulus, a power-law index is introduced. The effect of inhomogeneity on the displacement and stress fields is analyzed. On this foundation, the membrane structures with uniform normal tension loadings are studied to be accorded with practical cases of engineering application. The stress fields are derived by the superposition of the concentrated tension solution based on the Airy stress superposition theory. Compressive stress generally leads to wrinkling, then the wrinkle regions under different tension conditions are predicted accurately. The proposed stress model is simple, and the computation complexity is reduced without using a finite element solution.
Finite element analysis of ultimate bending bearing capacity for a multi-span extradosed bridge based on Willam-Warnke yield criteria
Authors: Hu Shixiang , Zhu Yuqin , Cong Ling , Ma Wengang 
Published: August 2023

Abstract
To investigate the load-carrying capacities at failure and failure modes of a five-span extradosed bridge with four towers, a solid element model was established using ANSYS. The model utilized the five-parameter Willam-Warnke yield criteria and was compared to calculations provided by the current specifications highway reinforced concrete, prestressed concrete bridge culverts (JTG3362-2018). The entire range of loads was analyzed, and the results were analyzed for accuracy. The average error in ultimate load between the finite element model and the bridge code was 6.5%, with a maximum error of 8.6%. Two methods were used to evaluate the ultimate load-carrying capacity of the bridge, both of which produced comparable results. It was discovered that the load-bearing capacity of the bridge was at a minimum when the load was placed on the midspan, with a surplus capacity factor of 2.14. Although the bridge meets the safety requirements of the current bridge code, it is important to consider this loading condition during operation and maintenance.
Design of a Biaxially Stretchable Microstrip Antenna Enabled by Buckled Au Thin Film on an Elastomeric Substrate
Authors: Zhou Honglei 
Published: August 2023

Abstract
Wearable wireless biomedical electronics enable monitoring and wireless transmission of patient physiological and pathological signals to provide remote guidance for appropriate diagnosis and treatment. As a core component, the antenna must be flexible and stretchable to adapt to the complex mechanical deformations (e.g., stretching, bending, and twisting) induced by human motions. This work proposes a biaxially stretchable microstrip antenna based on buckled gold thin films bonded on an elastomeric substrate. A simplified analytic model validated by simulations and experiments is established to investigate the biaxial buckling behaviors of the thin films within 10% tensile strains. The properties, including resonance frequency, bandwidth, and radiation pattern of the fabricated biaxially stretchable microstrip antenna under various stretched states, are studied by combining experiments and finite element analysis. The effects of biaxial tensile deformations on the resonance frequency, bandwidth, and radiation properties are discussed. Results show that the designed microstrip antenna has a relatively stable performance under both natural and deformed states within 10% of uniaxial and biaxial tensile strains, which enables the designed antenna to have broad application prospects in wearable wireless medical devices for stable transmission of signals between body-worn sensors and terminals, especially for situations accompanied with complex deformations.
Self-centering Aseismic Device Based on Shape Memory Alloy
Authors: Ren Hongmei , Zhang Fuwen , Peng Gongsheng 
Published: August 2023

Abstract
The seismic performance and quick resilience to build structures after an earthquake are paid more and more attention. The traditional seismic design of structures often adopts increasing the ductility of structures to meet the requirements of stronger earthquakes, but it may cause excessive residual deformation of structures after earthquakes, which leads to the difficulty of post-earthquake repair. The resilient structure can improve the seismic performance of the structure, and at the same time, the damage is concentrated on the dissipative components that can be quickly repaired. This requires the improvement of the seismic performance of the dissipative support, while effectively reducing the residual deformation of the components and enhancing the self-centering ability of the components. In this paper, a shape memory alloy (SMA) self-centering device suitable for rocking wall structure is developed from the aspects of SMA heat treatment, material properties, conceptual design, structural design, and mechanical properties test, so as to achieve a more efficient shock-proof structure with resilient functions.
Succinonitrile Plastic Crystal Polymer Electrolyte for Lithium Metal Battery
Authors: Su Yuefeng , Bai Youxiang , Lu Yun 
Published: August 2023

Abstract
Polymer electrolyte has attracted wide attention due to the advantages of easy fabrication, lightweight, and good mechanical flexibility. However, polymer electrolyte exhibits limited ionic conductivity at room temperature, so the batteries can only be used above room temperature. Here, a succinonitrile plastic crystal polymer composite electrolyte (SCPE) with high content of succinonitrile (SN) was fabricated by in-situ polymerization. SCPE exhibits high ionic conductivity, which can be used at room temperature. In addition, SCPE exhibits excellent stability to lithium and can stable cycle over 1500 h without short circuits. Furthermore, LFP|SCPE|Li can achieve 150 stable cycles, presenting excellent cyclic stability performance. This research provides a feasible method for high room temperature ionic conductivity plastic crystal polymer electrolyte.
Preparation of poly (m-phenylene isophthalamide)-ZIF-8 nanofiltration membranes with enhanced filter performance
Authors: Wu Wenwen , Li Na , Yu Junrong , Hu Zuming 
Published: August 2023

Abstract
Poly (m-phenylene isophthalamide) (PMIA) membranes are prepared via evaporating part solvent of the casting solution before its nonsolvent-induced phase separation. Zeolite imidazolate framework-8 (ZIF-8) is added into the PMIA solution as an inorganic filler to improve the filtration capability of the PMIA membrane. The structure of composite membranes is characterized by scanning electron microscopy (SEM), Zeta-potential analyzer (ζ-potential) and X-ray diffractometer (XRD). The filtering capabilities of the membranes for dyes and inorganic salts were deeply evaluated, in order to study the membrane separation performance. The PMIA-ZIF-8 membranes have excellent filtration properties for Congo red dye with a rejection rate of above 99.3%. The PMIA-ZIF-8 composite membranes have excellent properties that point to the possibility of using nanofiltration in commercial applications.
Thermochemical Cyclization Forms Core-Shell Structured Rutile TiO2@C-PAN as an Advanced Anode for Lithium-Ion Batteries
Authors: Hao Shuang , Zhang Kai , Tan Guoqiang , Wang Jing 
Published: August 2023

Abstract
Rutile TiO2 is a prospective lithium-ion anode material, which has the advantages of small volume change and excellent cycling performance. The low theoretical capacity and poor conductivity, however, prevent further application. In this work, we proposed a thermochemical cyclization coating strategy and successfully prepared rutile titanium dioxide anode material coated with conductive polymer Polyacrylonitrile (PAN). The coated material has an initial capacity of 246.5 mAh/g and a stable capacity of 125.5 mAh/g after 100 cycles. It is worth noting that this simple and effective coating method will contribute to the further application of rutile TiO2 materials.
Synthesis of High-capacity and High-rate Intergrown Cathodes for Lithium-ion Batteries
Authors: Wang Yihong , Li Ning , Cao Duanyun , Su Yuefeng , Wu Feng 
Published: August 2023

Abstract
Nowadays, general energy storage and electric vehicles urgently need to develop advanced lithium-ion batteries (LIB) with high specific energy and low cost, and one of the great challenges is to invent cheap cathode materials. Manganese-based cathode materials have been widely studied due to the low prices and high reserves of precursors, such as lithium-rich manganese-based (LMR) and Mn-based disordered rock-salt (DRX) cathodes. Inspired by the concept of layered-layered intergrown structure in LMR, we design a spinel-rock salt intergrown nano-composite. The as-developed cathode (Li1.7Ni0.12Mn1.48O4) shows a partially intergrown structure of spinel- and DRX-phases. Most importantly, the material enables the combination of the structural and electrochemical merits of the individual spinel and rock-salt phases, and it yields ultrahigh-capacity in comparison with the LMR or DRX and displays outstanding rate performance. It is hoped this novel intergrown cathode with low cost can inspire the design of advanced cathode for LIB.
Monoatomic Fe and Pt-Co alloys on NC/Ti4O7 for efficient and durable oxygen reduction
Authors: Luo Yangjun , Wang Youyuan , Zhang Huijuan , Wang Yu 
Published: August 2023

Abstract
The combination of metal monoatomic with alloys on carbon support facilitates the promising activity in oxygen reduction. However, the alloys still suffer from the degradation of catalyst stability due to carbon corrosion. Herein, the NC/Ti4O7 support was loaded with both monoatomic Fe and Pt-Co alloys using a one-step calcination method. The results indicate that chelation of Fe3+ with α-D-glucose, physical segregation of excess α-D-glucose and binding to N species at high temperatures are essential to increase the loading of monatomic Fe in Fe1/PtCo-NC/Ti4O7. Fe1/PtCo-NC/Ti4O7 demonstrates a half-wave potential of 0.941 V and a mass activity of 3.16 A mgPt
-1. This mass activity is as high as 6.87 times that of Fe/PtCo-NC/Ti4O7 (without α-D-glucose during the synthesis, 0.46 A mgPt
-1). Meanwhile, Fe1/PtCo-NC/Ti4O7 exhibits a peak power density of 210.5 mW cm-2 and a specific capacity of 771.1 mAh gZn
-1 in a zinc-air battery. This dual-substrate strategy provides a new perspective on the multilevel construction of catalysts.
Grid black start-up scheme based on the large-scale new energy grid
Authors: Liu Jin , Li Tong , Hu Yuanting , Hao Wenbo , Lei Xueting , Song Zhi 
Published: August 2023

Abstract
The uncertainty and intermittent characteristics of the output of new energy power sources make the output of grid-connected power sources change frequently. The self-excitation problem may occur in the process of black-start, which is one of the key factors to decide whether the black-start restoration scheme is feasible or not. Through theoretical research and simulation analysis, this paper discusses the criterion of hydropower self-excitation in the local power grid, and studies the effect of self-excitation on the system when different black-start schemes are formulated.