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| 1 | α→β Transformation characteristics revealed by pulsed laser-induced non-equilibrium microstructures in duplex-phase Zr alloy显示文摘Microstructures of a duplex-phase Zr-2.5Nb alloy treated by pulsed laser were characterized by electron backscatter diffraction(EBSD) and electron channeling contrast(ECC) imaging techniques.Major attention has been paid to non-equilibrium hybrid microstructure consisting of both prior a and β phases,and a plates transformed from new β phases to probe α→β transformation characteristics in the alloy.The origin of the hybrid microstructure is attributed to the specific thermodynamic conditions induced by the pulsed laser treatment.ECC observation shows that newly formed β phases during laser heating prefer to nucleate and grow at the expense of edges of prior a grains rather than their interiors.EBSD analyses further reveal that orientations of the new βphases are not determined by the prior a grains according to the Burgers relationship but maintain those of the prior β phases in an epitaxial growth way. | CHAI LinJiang WANG Shu Yan WU Hao GUO Ning PAN HuCheng CHEN Liang Yu MURTY K.L. SONG Bo | 2017 | Science China(Technological Sciences)2017，60，8： | 5 |
| 2 | Mechanical stress distribution and risk assessment of 110 kV GIS insulator considering Al_(2)O_(3)settlement显示文摘The growing application of gas insulated switchgear(GIS)in electric power system asks for higher reliability of epoxy(EP)insulators,thus it is important to seek effective methods to improve the operating reliability of GIS insulators.On the basis of the 110 kV GIS insulator,this study studied the aluminium oxide(Al_(2)O_(3))settlement in the curing process and the stress distribution of the horizontally laid GIS.Besides,the risk coefficient was defined to evaluate the operating reliability of insulators laid by different methods(I-V).Some conclusions are shown below:the Al_(2)O_(3)settlement in the curing process causes the insulator density to have a large variation from 2.13 to 2.32 g/cm^(3).The Al_(2)O_(3)content has a great influence on the mechanical performances of EP/Al_(2)O_(3)system.The first principle stress is localised on the upper interface between the insulator and the conductor,which is the main threat to the mechanical damage of insulator.The laying method V appears to be optimal with a pretty low risk coefficient of 31.5.In actual application,for the horizontally laid GIS,the insulator should be laid with the mould gate downward to improve its mechanical reliability. | Hucheng Liang Boxue Du Jin Li Zehua Wang | 2019 | High Voltage2019，4，1： | 5 |
| 3 | Promising functional graded materials for compact gaseous insulated switchgears/pipelines显示文摘The electric field distributions along gas-solid interfaces determine the reliability,lifetimes and sizes of gaseous insulated switchgears/pipelines(GIS/GIL),which also affect the reliability of power systems.In this study,the characteristics of steady and transient electric field distributions were first introduced,followed by the concept of functionally graded materials(FGMs).The development histories of FGM applied in electrical engineering and the related optimisation methods were described in detail.The field regulation effect and fabrication technology of different FGM insulators were also compared.To overcome the limitations of traditional FGM insulators,the design of surface FGM(SFGM)was proposed,together with their preparation methods and electrical performance.Furthermore,the future development prospects of FGM and SFGM insulators for compact GIS/GIL were summarised. | Jin Li Hucheng Liang Yun Chen Boxue Du | 2020 | High Voltage2020，5，3： | 5 |
| 4 | Aggregation Behavior of Imidazolium-Based Ionic Liquids in Water显示文摘 | Hucheng Zhang Huijun Liang Jianji Wang Kun Li | 2007 | Zeitschrift für Physikalische Chemie2007，，8： | 1 |
| 5 | Phytochemical properties and antioxidant capacities of commercial raspberry varieties显示文摘 | Liang Chen Xiulan Xin Hucheng Zhang Qipeng Yuan | 2012 | Journal of Functional Foods2012，，： | 1 |
| 6 | Phytochemicalproperties and antioxidant capacities of commercial raspberryvarieties显示文摘 | CHEN Liang XIU Lanxin ZHANG Hucheng | 2013 | Journal of Functional Foods2013，5，1： | 1 |
| 7 | Electric field control by permittivity functionally graded and superficially non-linear conductivity materials for DC-GIS spacer显示文摘This paper offers a simulation study on the application of a novel approach to control the electric field around a basin-type spacer by combining permittivity functionally graded materials(ε-FGM)and superficially non-linear conductivity materials(SNCM),namely multi-dimensional functional materials(MDFM).The permittivity distribution of theε-FGM spacer is designed by the iteration optimization algorithm,and the epoxy/SiC composites with 30 and 60 phr doping contents are assigned as the coating materials of two SNCM spacers,namely SNCM30 and SNCM60.The MDFM spacer combinesε-FGM in its bulk and SNCM60 on its surface.The electric field regulation effect of each functional spacer is investigated under variable conditions,that is,DC steady state(DC-steady),DC turn-on state(DC-on),DC polarity reversal(DC-PR),and DC superimposed with switching impulse voltage(DC-SI).Results show that the applicability ofε-FGM and SNCM is limited to transient and stationary conditions,respectively.The MDFM spacer combines the advantages ofε-FGM and SNCM for adaptively relaxing the electric field under all the above conditions.It is hoped that this research will be beneficial to the development and application of spacers for the direct current gas-insulated switchgear(DC-GIS). | Boxue Du Jianan Dong Hucheng Liang | 2022 | High Voltage2022，7，5： | 1 |
| 8 | Structural Elucidation and Total Synthesis of Trichodermotin A,A Natural α-Glucosidase Inhibitor from Trichoderma asperellum显示文摘A pair of alkaloid enantiomers possessing a novel 1-oxaspiro[4.4]non-3-ene-2,7-dione skeleton,trichodermotin A(1),was obtained from the fungus Trichoderma asperellum.Spectroscopic data,X-ray diffraction,and ECD calculations were used to establish its structure and absolute configuration.(−)-1 showed significantα-glucosidase inhibitory activity(IC_(50)=10.1μmol/L vs.60.1μmol/L of positive control).A plausible biosynthetic pathway originating from L-β-phenylalanine was proposed,and a facile total synthesis was further accomplished.The key reaction of our synthetic strategy was a domino aza-Michael/lactonization in one pot,leading to the pivotal 4-amino-oxaspiro[4.4]octane scaffold. | Muyuan Yu Fengqing Wang Si Yao Yi Zang Chong Dai Yu Liang Mi Zhang Lianghu Gu Hucheng Zhu Yonghui Zhang | 2022 | Chinese Journal of Chemistry2022，40，18： | 0 |
| 9 | Improved space charge transport model in bilayer dielectrics—considering carrier dynamic equilibrium显示文摘The Maxwell–Wagner model and bipolar charge transport model both aim at describing the charge transport behaviours in dielectrics.The Maxwell–Wagner model performs well in calculating the polarisation current and electric field distribution,but it is too macroscopic to describe the microscopic behaviours of space charges.The bipolar charge transport model can well simulate the space charge accumulation,but it cannot quantitatively relate the microscopic transport behaviours with the macroscopic conductivities of dielectrics.Considering the shortages of the above two models,an improved charge transport model,named carrier dynamic equilibrium model,was proposed in this study to simulate the polarisation process of the low-density polyethylene/ethylene propylene diene monomer bi-layer dielectric by introducing a source term of carrier dynamic equilibrium.Effects of carrier mobility and non-equilibrium carrier lifetime on the simulation results were explored,and a comparison among the results of measurement and different models was also made.Compared with the Maxwell–Wagner model and bipolar charge transport model,the improved model has the best coincidence with measurements,which can provide an accurate reference for the design of high-voltage direct current insulation systems. | Hucheng Liang Boxue Du Jin Li Hang Yao Zehua Wang | 2020 | High Voltage2020，5，2： | 0 |
| 10 | Study on non-uniformity and dynamic fracture characteristics of GIL tri-post insulators considering Al_(2)O_(3) sedimentation显示文摘Tri-post insulators in gas-insulated transmission line(GIL)are usually fabricated with high mass fraction of micron aluminum oxide(Al_(2)O_(3)),which will unavoidably settle under the action of gravity during the preparation process and seriously affect the uniformity.A model of filler sedimentation in epoxy resin composite materials was proposed based on the particle size analysis and Stokes'Law.Some scaled tri-post insulators were prepared and tested by slicing.It is determined that the position of density concentration is the lower side of the two lower posts and the upper interface between the insulator and the conductor.The density ranges from 2.144 to 2.346 g/cm^(3).The dynamic fracture simulation model of insulator was established and it is found that the insulator fracture occurs at the interface of upper post/insert under radial load,which is verified by experiments.By comparing the influence of sprue position on the density distribution,it is found that the uniformity of insulators is increased by 13.7% by forward pouring compared with reverse pouring.This research develops an accurate method for simulating the filler sedimentation and the fracture process in epoxy-based insulators,which is helpful for the improvement of mechanical reliability of GIL. | Jin Li Songtao Liu Hucheng Liang Liucheng Hao Yaxiang Wang Boxue Du | 2023 | High Voltage2023，8，4： | 0 |
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