• Complex
  • Title
  • Author
  • Keyword
  • Abstract
  • Scholars
High Impact Results & Cited Count Trend for Year Keyword Cloud and Partner Relationship

Query:

学者姓名:李盛涛

Refining:

Source

Submit Unfold

Co-Author

Submit Unfold

Language

Submit

Clean All

Export Sort by:
Default
  • Default
  • Title
  • Year
  • WOS Cited Count
  • Impact factor
  • Ascending
  • Descending
< Page ,Total 39 >
High-k polymer nanocomposites with 1D filler for dielectric and energy storage applications EI Scopus SCIE
期刊论文 | 2019 , 100 , 187-225 | Progress in Materials Science
Abstract&Keyword Cite

Abstract :

© 2018 Elsevier Ltd High-k polymer nanocomposites have received increased research interest by virtue of integrating high dielectric constant nanofiller with high breakdown strength, flexibility, and ease of processing of a matrix. With outstanding anisotropy, high-aspect-ratio nanofillers have proved to be much more efficient enhancers of the dielectric properties of nanocomposites when compared with traditional zero-dimensional (0D) fillers, leading to many dielectric and energy storage applications. This review summarizes the latest research on one-dimensional (1D) and quasi-1D fillers based high-k polymer nanocomposites with the focus on the superiority of 1D or quasi-1D high-k fillers in enhancing the dielectric properties and energy storage capability of polymer nanocomposites. Dielectric anisotropy, which plays a critical role in determining the dielectric properties and energy storage capability of polymer nanocomposites, was highlighted and the experimental methodologies for achieving anisotropic dielectric polymer nanocomposites were reviewed. The fundamental electrical parameters, such as dielectric constant, dielectric nonlinearity, dielectric loss and electrical conduction, and breakdown strength of dielectric polymer composites, are also discussed. Given the recent progress, guidelines for the future development of high-k polymer nanocomposites with dielectric and energy storage applications were proposed.

Keyword :

1D filler Dielectrics Energy storage Flexibility High-k Nanocomposites

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Huang, Xingyi , Sun, Bin , Zhu, Yingke et al. High-k polymer nanocomposites with 1D filler for dielectric and energy storage applications [J]. | Progress in Materials Science , 2019 , 100 : 187-225 .
MLA Huang, Xingyi et al. "High-k polymer nanocomposites with 1D filler for dielectric and energy storage applications" . | Progress in Materials Science 100 (2019) : 187-225 .
APA Huang, Xingyi , Sun, Bin , Zhu, Yingke , Li, Shengtao , Jiang, Pingkai . High-k polymer nanocomposites with 1D filler for dielectric and energy storage applications . | Progress in Materials Science , 2019 , 100 , 187-225 .
Export to NoteExpress RIS BibTex
Review of electrical properties for polypropylene based nanocomposite Scopus
期刊论文 | 2018 , 10 , 221-225 | Composites Communications
Abstract&Keyword Cite

Abstract :

© 2018 Polypropylene (PP), is one of the most widely used dielectric materials in electrical industry, especially in power capacitors and power cables. The requirement of higher electrical properties of PP by the rapid development of power system made the nanocomposite to be a promising solution to modify PP based dielectrics. In this review, we focused on the electrical properties and systematically gave an overview of PP based nanocomposite researches for power equipment application in recent years. We categorized the electrical properties into breakdown strength, dielectric permittivity, and long-term electrical performance, and summarized the correlations between enhanced properties and nanofiller types both experimentally and theoretically. Based on the achieved approaches, prospects for the future research on PP based nanocomposite was proposed, which may provide a worth-considering direction for the future work.

Keyword :

Dielectric Nanocomposite Polypropylene

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Liu, Wenfeng , Cheng, Lu , Li, Shengtao . Review of electrical properties for polypropylene based nanocomposite [J]. | Composites Communications , 2018 , 10 : 221-225 .
MLA Liu, Wenfeng et al. "Review of electrical properties for polypropylene based nanocomposite" . | Composites Communications 10 (2018) : 221-225 .
APA Liu, Wenfeng , Cheng, Lu , Li, Shengtao . Review of electrical properties for polypropylene based nanocomposite . | Composites Communications , 2018 , 10 , 221-225 .
Export to NoteExpress RIS BibTex
An effective principal component regression method for transformer life management based on indirect parameters EI
会议论文 | 2018 | 7th International Conference on Condition Monitoring and Diagnosis, CMD 2018
Abstract&Keyword Cite

Abstract :

Transformer life management has gained remarkable recognition due to its crucial role for safe operation of the power grid. Since transformer life is dominated by insulating state of its oil-paper insulation, the DP value has been traditionally regarded as the primary indicator. However, the DP sampling procedure is destructible and inconvenient. In this paper, we present an effective principal component regression method to assess the insulating state of oil-paper through indirectly estimating the degree of polymerization based on the aging characteristic parameter in oil. Thermal aging experiments were firstly conducted on palm oil and mineral oil impregnated paper, respectively. After aging experiments, aging characteristic parameters of oil were tested, including moisture, acidity, 2-furan, surface tension, dissolved gas-in-oil analysis, methanol, and ethanol. Principal component regression method was then performed to find the principal component and build a relationship between the degree of polymerization and the aging characteristic parameters of oil. After computation, the estimation of degree of polymerization value can be obtained with a high goodness of fitting, which is 0.92 and 0.78 for mineral oil and palm oil impregnated paper respectively. The estimation could be improved by data processing. © 2018 IEEE.

Keyword :

Aging characteristics Degree of polymerization Dissolved gas in oil analysis Oil impregnated papers Oil paper insulation Principal component regression Principal Components Transformer life management

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Li, Shiiun , Yang, Liuqing , Yan, Wei et al. An effective principal component regression method for transformer life management based on indirect parameters [C] . 2018 .
MLA Li, Shiiun et al. "An effective principal component regression method for transformer life management based on indirect parameters" . (2018) .
APA Li, Shiiun , Yang, Liuqing , Yan, Wei , Cui, Huize , Ge, Zhao , Li, Shengtao . An effective principal component regression method for transformer life management based on indirect parameters . (2018) .
Export to NoteExpress RIS BibTex
Research Progress and Path Analysis of Insulating Materials Used in HVDC Cable EI Scopus CSCD PKU
期刊论文 | 2018 , 44 (5) , 1399-1411 | Gaodianya Jishu/High Voltage Engineering
Abstract&Keyword Cite

Abstract :

DC power transmission has become more and more important in power grid construction, and the HVDC cable is one of the most important power devices. However, due to long-time monopoly by foreign firms, China has no enough ability in mass production of stable and reliable HVDC cable insulating materials and shielding materials at present, thus it is urgently needed to develop new cable materials with independent intellectual property rights in our country. From the aspect of technical requirements, we review the research path and future development, research progress and path analysis of HVDC cable materials. Firstly, we discuss the technical requirements including dielectric strength, electric field distribution, and space charge transport. Then, we analyze the present situation, advantages and disadvantages, trap characteristics, and the development direction of cable materials including high purity cable materials, nanocomposite cable materials, blended composite cable materials, grafting cable materials, and shielding materials. Finally, we forecast the future development. The co-relationship between DC insulation characteristics is established using the charge trap theory. The effect of charge trap behavior on DC insulation characteristics is obtained. The trap characteristics and adjusting methods for various paths are summarized. This research can provide a theoretical support for the development of new DC cable materials. © 2018, High Voltage Engineering Editorial Department of CEPRI. All right reserved.

Keyword :

Charge trap DC cables Graft modification Insulation performance Nanocomposite dielectrics Polymer blending Shielding layer

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Li, Shengtao , Wang, Shihang , Li, Jianying . Research Progress and Path Analysis of Insulating Materials Used in HVDC Cable [J]. | Gaodianya Jishu/High Voltage Engineering , 2018 , 44 (5) : 1399-1411 .
MLA Li, Shengtao et al. "Research Progress and Path Analysis of Insulating Materials Used in HVDC Cable" . | Gaodianya Jishu/High Voltage Engineering 44 . 5 (2018) : 1399-1411 .
APA Li, Shengtao , Wang, Shihang , Li, Jianying . Research Progress and Path Analysis of Insulating Materials Used in HVDC Cable . | Gaodianya Jishu/High Voltage Engineering , 2018 , 44 (5) , 1399-1411 .
Export to NoteExpress RIS BibTex
Trap Energy Distribution in Polymeric Insulating Materials through Surface Potential Decay Method EI SCIE Scopus
期刊论文 | 2018 , 25 (2) , 639-648 | IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
SCOPUS Cited Count: 1
Abstract&Keyword Cite

Abstract :

A model based on surface potential decay (SPD) measurement was developed to study the trap energy distribution of hole-type and electron -type traps in materials by considering two distinct energy levels (i.e., shallow and deep traps) and the detrapping process. An approximated Dirac function delta((E-E-m)/kT) was also introduced to obtain a consistent unit of trap density. Besides, the space charge distributions (such as uniform, linear and exponent distribution) in positively and negatively charged materials were also taken into account. In order to verify our proposed model, the different SPD curves of low density polyethylene (LDPE), LDPE/zinc oxide (ZnO) microcomposite and nanocomposite were analyzed. The results show that the proposed model is effective to obtain the trap energy distribution in materials. The SPD curves in positively and negatively charged samples show a fast decay followed by a slow decay, which is agreed with our assumption of shallow and deep traps. Two peaks are clearly observed from the trap energy distribution. The trap energy distributions of hole -type and electron -type traps in these materials are distinct from each other. This implies some essential nature of hole -type and electron-type traps (i.e., intra-chain character for hole -type traps and inter-chain character for electron-type traps). In addition, compared to LDPE and LDPE/ZnO microcompoiste, the decreasing energy level and the increasing trap density of shallow traps as well as the decreasing trap density of deep traps in LDPE/ZnO nanocomposite may be attributed to the effect of the interaction zone surrounding nanoparticles.

Keyword :

morphology LDPE nanocomposite surface potential decay trap energy distribution

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Han, Yongsen , Li, Shengtao , Min, Daomin . Trap Energy Distribution in Polymeric Insulating Materials through Surface Potential Decay Method [J]. | IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION , 2018 , 25 (2) : 639-648 .
MLA Han, Yongsen et al. "Trap Energy Distribution in Polymeric Insulating Materials through Surface Potential Decay Method" . | IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION 25 . 2 (2018) : 639-648 .
APA Han, Yongsen , Li, Shengtao , Min, Daomin . Trap Energy Distribution in Polymeric Insulating Materials through Surface Potential Decay Method . | IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION , 2018 , 25 (2) , 639-648 .
Export to NoteExpress RIS BibTex
Surface Flashover Properties of Epoxy Based Nanocomposites Containing Functionalized Nano-TiO2 EI SCIE Scopus
期刊论文 | 2018 , 25 (4) , 1567-1576 | IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
Abstract&Keyword Cite

Abstract :

Surface flashover properties should meet stringent requirements for the use in electrical equipment under high voltage DC environments. With the aim of enhancing surface flashover properties and understanding the mechanisms involved at ambient conditions, epoxy nanocomposites with different weight proportions of nano-TiO2 were prepared. A silane coupling agent was selected to functionalize the TiO2, the effect of which on nanoparticles dispersion and distribution was perused through scanning electron microscopy and infrared spectroscopy. DC surface flashover measurements in five normally used ambient conditions (N-2, air, CO2, SF6 and vacuum) were conducted and results were analyzed relating to loading content, gas parameters, surface trap parameters as well as electrical conductivity of nanocomposites. Outcomes indicate that with low content of nanoparticles, the density of deep traps was increased, showing a positive effect on inhibiting surface flashover. When the nanoparticle content is higher than 1 wt%, the overlapped transitional region reduced the energy level of traps, resulting in a poor display of surface flashover voltages. It was found that the nanoparticle content had a greater influence on surface flashover in vacuum. Electron negativity, ionization coefficient and mean free path of gases were taken into account to explain why surface flashover in SF6 appeared to be the highest, whereas in N-2, it was the lowest. At last, effects of gas-solid interactions on surface flashover combining surface-trap characteristics, secondary electron-emission contributions and gas molecule impact-ionization characteristics were analyzed.

Keyword :

trap parameters polymer nanocomposite surface flashover epoxy insulation gas parameters electrical conductivity

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Yu, Shihu , Li, Shengtao , Wang, Shihang et al. Surface Flashover Properties of Epoxy Based Nanocomposites Containing Functionalized Nano-TiO2 [J]. | IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION , 2018 , 25 (4) : 1567-1576 .
MLA Yu, Shihu et al. "Surface Flashover Properties of Epoxy Based Nanocomposites Containing Functionalized Nano-TiO2" . | IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION 25 . 4 (2018) : 1567-1576 .
APA Yu, Shihu , Li, Shengtao , Wang, Shihang , Huang, Yin , Nazir, M. Tariq , Phung, B. T. . Surface Flashover Properties of Epoxy Based Nanocomposites Containing Functionalized Nano-TiO2 . | IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION , 2018 , 25 (4) , 1567-1576 .
Export to NoteExpress RIS BibTex
A Transition of Interface Characteristics in LDPE/Al2O3 Nanocomposites by Permittivity Simulation EI SCIE Scopus
期刊论文 | 2018 , 25 (1) , 2-12 | IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
Abstract&Keyword Cite

Abstract :

This paper reveals an interface transition characteristics in LDPE/Al2O3 nanocomposites. A nonlinear variation of dielectric permittivity in nanocomposites is closely related to the interface characteristics, such as the effective thickness, the volume fraction, and the relative permittivity. The interface with a low relative permittivity is defined as a phase between nanoparticle and polymer matrix. After that, the effective permittivities of the nanocomposites are calculated by the three-phase models. The linear model which considers the interface volume by Monte Carlo calculation indicated a significant increase of interface volume fraction at low loadings, which decreased the permittivity. However, it failed to fit the permittivity at high loadings. The interface power law (IPL) model considering the interface overlap and the shape and orientation of particle is difficult to fit the measured data, particularly at low loadings. It seems that neither of the models can well fit the measured data. However, through comparison of the two models, the permittivity behaviors in low and high loading regions can be understood. The improved model with power law relation is likely useful for explaining the reduced permittivity at low loadings, while a revised IPL model could locally agree with the increased permittivity at high loadings. In light of the comparisons, it can be inferred that the reduction of epsilon(r) at low loadings is ascribed to the large interface volume (low permittivity), and the enhancement of epsilon(r) at high loadings is caused by the nanoparticles. A transition of interface characteristics is summarized, which is responsible for the change of dielectric properties.

Keyword :

Nanocomposites interface relative permittivity transition three phase model

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Wang, Weiwang , Li, Shengtao . A Transition of Interface Characteristics in LDPE/Al2O3 Nanocomposites by Permittivity Simulation [J]. | IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION , 2018 , 25 (1) : 2-12 .
MLA Wang, Weiwang et al. "A Transition of Interface Characteristics in LDPE/Al2O3 Nanocomposites by Permittivity Simulation" . | IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION 25 . 1 (2018) : 2-12 .
APA Wang, Weiwang , Li, Shengtao . A Transition of Interface Characteristics in LDPE/Al2O3 Nanocomposites by Permittivity Simulation . | IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION , 2018 , 25 (1) , 2-12 .
Export to NoteExpress RIS BibTex
Reverse manipulation of intrinsic point defects in ZnO-based varistor ceramics through Zr-stabilized high ionic conducting beta(III)-Bi2O3 intergranular phase EI SCIE Scopus
期刊论文 | 2018 , 38 (4) , 1614-1620 | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
SCOPUS Cited Count: 1
Abstract&Keyword Cite

Abstract :

Intrinsic point defect structure plays a crucial role in functional ceramics with a grain-grain boundary microstructure. In the present study, a novel method of reversely manipulating 'intrinsic point defects (oxygen vacancy, V-o and zinc interstitial, Zn-i) in ZnO-based varistor ceramics is proposed, which makes use of Zr-stabilized high ionic conducting beta(III)-Bi2O3 intergranular phase. It is found that Zr-doping not only modifies the grain growth by the formation of secondary Zr-rich phase, but also influences the intrinsic point defect structure via the stabilized beta(III)-Bi2O3 phase, resulting in reduced Vo density but increased Zni density. The reverse manipulation is unambiguously demonstrated by broadband dielectric spectroscopy and further confirmed by the accelerated ageing experiment. The proposed intrinsic point defect dynamics unveil an important but usually neglected function of the dopant that has little solid solubility in ZnO grains, which opens up a promising way to tailor the material property.

Keyword :

Reverse manipulation ZnO-based varistor ceramics Zr-doping Dielectric spectroscopy Intrinsic point defect structure

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 He, Jinqiang , Li, Shengtao , Lin, Jiajun et al. Reverse manipulation of intrinsic point defects in ZnO-based varistor ceramics through Zr-stabilized high ionic conducting beta(III)-Bi2O3 intergranular phase [J]. | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY , 2018 , 38 (4) : 1614-1620 .
MLA He, Jinqiang et al. "Reverse manipulation of intrinsic point defects in ZnO-based varistor ceramics through Zr-stabilized high ionic conducting beta(III)-Bi2O3 intergranular phase" . | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 38 . 4 (2018) : 1614-1620 .
APA He, Jinqiang , Li, Shengtao , Lin, Jiajun , Zhang, Le , Feng, Kai , Zhang, Lei et al. Reverse manipulation of intrinsic point defects in ZnO-based varistor ceramics through Zr-stabilized high ionic conducting beta(III)-Bi2O3 intergranular phase . | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY , 2018 , 38 (4) , 1614-1620 .
Export to NoteExpress RIS BibTex
Characterization of Polypropylene Modified by Blending Elastomer and Nano-Silica EI SCIE PubMed Scopus
期刊论文 | 2018 , 11 (8) | MATERIALS
WoS CC Cited Count: 1
Abstract&Keyword Cite

Abstract :

Polypropylene (PP) contains promising application prospects in thermoplastic cables for high voltage direct current (HVDC) power transmission because of its outstanding thermal and dielectric properties. However, the problem of poor toughness and space charge has restricted the application of pure PP in HVDC cables. In this paper, polyolefin elastomer (POE) and nano-silica were blended thoroughly and added into a PP mixture by a melting method. Scanning electron microscopy (SEM) was employed to observe the dispersion of POE and nanoparticles. Thermal properties were characterized by differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). Mechanical properties were evaluated by tensile tests. The elastomeric properties of composites were improved as the dispersed POE could transfer and homogenize external mechanical forces. DC breakdown results showed that the fail strength of composite with 10 phr POE and 1 phr nano-silica was obviously enhanced. The pulsed electro-acoustic (PEA) results showed that the injection and accumulation of space charge was increased by the introduction of POE, while it was restrained by the collective effect caused by nano-silica filling. X-ray diffraction (XRD) spectrograms showed that secondary ordered structures existed in the composites of PP, POE, and nano-silica, and that the ordered structure around the nanoparticles contributed to the enhancement of breakdown strength. The mechanical and dielectric properties were modified synergistically, which made the modified PP a propitious insulation material for HVDC cables.

Keyword :

PP-based dielectric elastomer blending nano-silica filling dielectric properties mechanical properties

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Chi, Xiaohong , Cheng, Lu , Liu, Wenfeng et al. Characterization of Polypropylene Modified by Blending Elastomer and Nano-Silica [J]. | MATERIALS , 2018 , 11 (8) .
MLA Chi, Xiaohong et al. "Characterization of Polypropylene Modified by Blending Elastomer and Nano-Silica" . | MATERIALS 11 . 8 (2018) .
APA Chi, Xiaohong , Cheng, Lu , Liu, Wenfeng , Zhang, Xiaohong , Li, Shengtao . Characterization of Polypropylene Modified by Blending Elastomer and Nano-Silica . | MATERIALS , 2018 , 11 (8) .
Export to NoteExpress RIS BibTex
Space Charge Modulated Electrical Breakdown of Oil Impregnated Paper Insulation Subjected to AC-DC Combined Voltages EI SCIE Scopus
期刊论文 | 2018 , 11 (6) | ENERGIES
Abstract&Keyword Cite

Abstract :

Based on the existing acknowledgment that space charge modulates AC and DC breakdown of insulating materials, this investigation promotes the related investigation into the situations of more complex electrical stress, i.e., AC-DC combined voltages. Experimentally, the AC-DC breakdown characteristics of oil impregnated paper insulation were systematically investigated. The effects of pre-applied voltage waveform, AC component ratio, and sample thickness on AC-DC breakdown characteristics were analyzed. After that, based on an improved bipolar charge transport model, the space charge profiles and the space charge induced electric field distortion during AC-DC breakdown were numerically simulated to explain the differences in breakdown characteristics between the pre-applied AC and pre-applied DC methods under AC-DC combined voltages. It is concluded that large amounts of homo-charges are accumulated during AC-DC breakdown, which results in significantly distorted inner electric field, leading to variations of breakdown characteristics of oil impregnated paper insulation. Therefore, space charges under AC-DC combined voltages must be considered in the design of converter transformers. In addition, this investigation could provide supporting breakdown data for insulation design of converter transformers and could promote better understanding on the breakdown mechanism of insulating materials subjected to AC-DC combined voltages.

Keyword :

breakdown oil impregnated paper insulation space charge combined voltage

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Zhu, Yuanwei , Li, Shengtao , Min, Daomin et al. Space Charge Modulated Electrical Breakdown of Oil Impregnated Paper Insulation Subjected to AC-DC Combined Voltages [J]. | ENERGIES , 2018 , 11 (6) .
MLA Zhu, Yuanwei et al. "Space Charge Modulated Electrical Breakdown of Oil Impregnated Paper Insulation Subjected to AC-DC Combined Voltages" . | ENERGIES 11 . 6 (2018) .
APA Zhu, Yuanwei , Li, Shengtao , Min, Daomin , Li, Shijun , Cui, Huize , Chen, George . Space Charge Modulated Electrical Breakdown of Oil Impregnated Paper Insulation Subjected to AC-DC Combined Voltages . | ENERGIES , 2018 , 11 (6) .
Export to NoteExpress RIS BibTex
10| 20| 50 per page
< Page ,Total 39 >

Export

Results:

Selected

to

Format:
FAQ| About| Online/Total:2224/51351334
Address:XI'AN JIAOTONG UNIVERSITY LIBRARY(No.28, Xianning West Road, Xi'an, Shaanxi Post Code:710049) Contact Us:029-82667865
Copyright:XI'AN JIAOTONG UNIVERSITY LIBRARY Technical Support:Beijing Aegean Software Co., Ltd.