检索结果-南通市图书馆

Ultra‑Stable Sodium‑Ion Battery Enabled by All‑Solid‑State Ferroelectric‑Engineered Composite Electrolytes

Nano-Micro Letters 2024年第11期16卷 704-717页

作者： Yumei Wang Zhongting Wang Xiaoyu Xu Sam Jin An Oh Jianguo Sun Feng Zheng Xiao Lu Chaohe Xu binggong yan.guangsheng huang Li Lu College of Aerospace Engineering Chongqing UniversityChongqing 400044People’s Republic of China National University of Singapore(Chongqing)Research Institute Chongqing 401123People’s Republic of China College of Materials Science and Engineering Chongqing UniversityChongqing 400044People’s Republic of China Department of Mechanical Engineering National University of Singapore9 Engineering Drive 1Singapore 117575Singapore Fujian Key Laboratory of Special Energy Manufacturing Xiamen Key Laboratory of Digital Vision MeasurementHuaqiao UniversityXiamen 361021People’s Republic of China

Symmetric Na-ion cells using the NASICON-structured electrodes could simplify the manufacturing process,reduce the cost,facilitate the recycling post-process,and thus attractive in the field of large-scale stationary energy ***,the long-term cycling performance of such batteries is usually *** investigation reveals the unavoidable side reactions between the NASICON-type Na_(3)V_(2)(PO_(4))_(3)(NVP)anode and the commercial liquid electrolyte,leading to serious capacity fading in the symmetric NVP//NVP *** resolve this issue,an all-solid-state composite electrolyte is used to replace the liquid electrolyte so that to overcome the side reaction and achieve high anode/electrolyte interfacial *** ferroelectric engineering could further improve the interfacial ion conduction,effectively reducing the electrode/electrolyte interfacial *** NVP//NVP cell using the ferroelectric-engineered composite electrolyte can achieve a capacity retention of 86.4%after 650 ***,the electrolyte can also be used to match the Prussianblue cathode NaxFeyFe(CN)_(6−z)·nH_(2)O(NFFCN).Outstanding long-term cycling stability has been obtained in the all-solid-state NVP//NFFCN cell over 9000 cycles at a current density of 500 mA g^(-1),with a fading rate as low as 0.005%per cycle.

关键词： Sodium-ion battery NVP anode All-solid-state Cyclic stability Ferroelectric

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

In-situ investigation on the microstructure evolution of Mg-2Gd alloys during the V-bending tests

引用

Journal of Materials Science & Technology 2022年第36期131卷 167-176页

作者： Chao He Jianxin Zhou yan yang Bin Jiang Ming Yuan Zhihua Dong yanfu Chai Weijun He guangsheng huang Dingfei Zhang Fusheng Pan State Key Laboratory of Mechanical Transmissions College of Materials Science and EngineeringChongqing UniversitySha Zheng Street 174#Sha Ping Ba DistrictChongqing 400044China National Engineering Research Center for Magnesium Alloys Chongqing UniversityChongqing 400044China School of Mechanical and Electrical Engineering Shaoxing UniversityShaoxing 312000China School of Chemistry and Materials Science Hubei Engineering UniversityXiaogan 432000China

In this work,the in-situ observation of the microstructure in the Mg-2Gd(wt%)alloys during V-bending tests was *** microstructure and texture evolutions were characterized by the in-situ electron backscatter diffraction(EBSD),scanning electron microscopy(SEM)and the high-angle annular dark-field scanning transmission electron microscopy(HAADF-STEM)*** results revealed a unique microcracks nucleation mechanism in the Mg-Gd alloys compared with the traditional Mg alloy(AZ31 alloy).The microcrack was nucleated at the grain boundary for the Mg-2Gd alloy and in the intragranular for the AZ31 alloy during the bending *** difference mode between the Mg-Gd and the AZ31 alloys was mainly attributed to the more random topology of the grain boundary network,the lower grain boundary cohesion and the enhanced hinder ability for the dislocations due to the segregated Gd atoms in the Mg-Gd ***,the microcracks that had a large angleθwith the extruded direction(ED)in the Mg-Gd alloys were preferred nucleated since grain boundaries had the larger normal stress during the bending process.

关键词： Magnesium In-situ V-bending Microstructure Texture Microcracks

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Comparison of microstructures and mechanical properties of composite extruded AZ31 sheets

引用

Journal of Magnesium and Alloys 2019年第4期7卷 547-554页

作者： yanfu Chai yan Song Bin Jiang Jie Fu Zhongtao Jiang Qingshan yang Haoran Sheng guangsheng huang Dingfei Zhang Fusheng Pan State Key Laboratory of Mechanical Transmissions College of Materials Science and EngineeringChongqing UniversityChongqing 400044China Chongqing Academy of Science and Technology Chongqing 401123China Research Institute for New Materials Technology Chongqing University of Arts and SciencesChongqing 402160China Shanghai Aerospace Equipment Manufactory Shanghai 200245China

The microstructures and mechanical properties of the composite extruded AZ31/AZ31 and AZ31/4047 Al sheets were investigated and made a comparison to the conventional extruded AZ31 *** to the introduced intense shear deformation at the interface during the composite extrusion,grain refinement and tilted texture were detected in AZ31 layers of the AZ31/AZ31 and AZ31/4047 Al sheets,while the conventional extruded AZ31 sheet exhibited a relative coarse,inhomogeneous microstructure and strong basal *** compressiontension yield ratio was increased gradually from the AZ31 to the AZ31/AZ31 and AZ31/4047 Al ***,the AZ31/4047 Al sheet could successfully accomplish the whole bending forming process at room temperature,while the AZ31 and AZ31/AZ31 sheets were both bend-formed to failure with significant cracks in the outer tensile region under the identical bending ***,under the same bending strain,both the outward offset degree of strain neutral layer and the sheet thickening were more serious in the AZ31/4047 Al composite sheet than those of the AZ31 and AZ31/AZ31 *** foremost reason was the quite wide gap of material properties between Mg alloy AZ31 layer(tensile loading in the outer region)and Al 4047 layer(compressive loading in the inner region).

关键词： Mg alloy sheet Composite extrusion Tension-compression yield asymmetry Bendability

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Comparative study of helical CT with contrast-enhanced ultrasound of renal carcinoma

引用

The Chinese-German Journal of Clinical Oncology 2008年第2期7卷 93-97页

作者： yan Guo guangsheng Wan Yaqing Chen Mingjuan Liu Qian Peng Zhaomin huang Department of Radiology The First Affiliated Hospital of Sun Yet-sen University Guangzhou 510080 China Department of Ultrasound The First Affiliated Hospital of Sun Yet-sen University Guangzhou 510080 China

Objective: To investigate the efficiency of helical CT comparing with contrast-enhanced ultrasound, and to im- prove the diagnosis efficiency of renal cell carcinoma (RCC). Methods: Thirty RCCs confirmed pathologically were studied retrospectively. The un-enhanced CT scan and the triphasic enhanced helical CT scan were performed in all cases, the gray-scale US and angiosonography with SonoVue were performed in all cases meantime. Results: 22 cases (73.3%) were diagnosed correctly by helical CT alone before operation. 7 cases (23.3%) were suspected as RCC with helical CT. One case (3.3%) was misdiagnosed with helical CT. 25 cases (83.3%) were diagnosed correctly with contrast-enhanced ultrasound alone pre-operation. One case (3.3%) was suspected as RCC with angiosonography. Four cases (13.3%) were misdiagnosed with angiosonography alone. 29 cases (96.7%) were diagnosed correctly by helical CT combining with angiosonography before operation, one case (3.3%) was diagnosed as renal mass with both helical CT and angiosonography. Conclusion: Contrast-enhanced ultrasound is sensitive in detecting blood flow, it can detect the enhancement of the tumor which cannot be detected by helical CT. CT and angiosonography have strong complement each other in the diagnosis of RCC.

关键词： carcinoma, renal cell tomography, x-ray computed contrast-enhanced ultrasound

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

纳秒脉冲下固液交接面闪络特性研究进展

引用

高电压技术 2005年第9期31卷 50-52页

作者：黄文力孙广生严萍中国科学院电工研究所

为研究固液界面闪络特性,根据它与液体体击穿相似,介绍了当前最主要的液体体击穿机理:电子理论和气泡理论。在此基础上介绍两个窄脉冲下固液交接面闪络可能的模型并评述了窄脉冲闪络的独特性。

关键词：纳秒脉冲液体击穿固液沿面闪络

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Geological and Geochronlogical Constraints on the Formation of Jurassic Dayishan Tin-Polymetallic Ore Field, South China

Geological and Geochronlogical Constraints on the Formation ...

引用

第八届全国成矿理论与找矿方法学术讨论会

作者： Hairui SUN guangsheng yan Zheng ZHAO Zhicheng L Zhilong huang Xiaofei YU Development Research Center of China Geological Survey China Geological Survey Institute of Mineral Resources Chinese Academy of Geological Sciences State Key Laboratory of Ore Deposit Geochemistry Institute of Geochemistry Chinese Academy of Sciences

The Nanling region is the most important W-Sn metallogenic province in the *** the Nanling range,there are hundreds of W-Sn deposits associated with granitic plutons that vary in age from Late Triassic to Late Cretaceous(Mao et al.,2007).In the Dayishan district,located at the central part of the Nanling region,numerous

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

ns脉冲液体介质击穿实验研究综评

引用

高电压技术 2006年第4期32卷 73-77页

作者：黄文力孙广生严萍王珏中国科学院电工研究所

介绍了目前液体介质击穿研究的实验内容(电压极性、电压波形、外界静态压力等)、实验方法(电学与光学结合)、研究成果(经验公式、击穿机理);指出单次ns脉冲击穿的电压脉宽窄(ns级)、击穿电压幅值高,重频ns脉冲电压击穿下液体介质的电场... 详细信息

介绍了目前液体介质击穿研究的实验内容(电压极性、电压波形、外界静态压力等)、实验方法(电学与光学结合)、研究成果(经验公式、击穿机理);指出单次ns脉冲击穿的电压脉宽窄(ns级)、击穿电压幅值高,重频ns脉冲电压击穿下液体介质的电场累积效应(极化效应)显著,这些ns级液体介质击穿的特点有助于揭示液体介质击穿的本质特性。结合研究成果讨论了窄脉冲电压液体介质击穿的概率与击穿机理。

关键词： ns脉冲液体介质击穿特性实验研究综评

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

同轴电极内电极直径变化的边缘效应仿真研究

引用

电工技术学报 2006年第4期21卷 117-121页

作者：黄文力孙广生严萍任晋旗中国科学院电工研究所北京100080

应用ANSYS数值计算软件包对同轴结构电极同轴电场的边缘效应进行较详尽的仿真研究。当内电极直径变化,保持内外电极半径差值相等,分析内电极直径变化时同轴电场边缘效应的变化,指出边缘效应沿径向呈倒U形分布,随着内电极直径的增加,不... 详细信息

应用ANSYS数值计算软件包对同轴结构电极同轴电场的边缘效应进行较详尽的仿真研究。当内电极直径变化,保持内外电极半径差值相等,分析内电极直径变化时同轴电场边缘效应的变化,指出边缘效应沿径向呈倒U形分布,随着内电极直径的增加,不同电极空间相应位置上电场受边缘效应的影响减弱。这些结论对于固液体交接面闪络特性研究实验电极的设计具有重要的指导意义。

关键词：同轴电极边缘效应仿真研究

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

基于EDTA-Cu的柔性阴极制备试验与机理研究

引用

材料科学与工艺 2021年第4期29卷 39-44页

作者：乐其河黄晓狄宋轩颜丙功江开勇华侨大学机电及自动化学院福建厦门361021 福建省特种能场制造重点试验室(华侨大学) 福建厦门361021

为制备低成本和环保的柔性阴极,研究柔性电极的制备机理,本文以EDTA-Cu为活性材料,利用激光诱导化学镀铜工艺,制备了电解加工柔性阴极并进行了系统表征,对相关机理进行了探讨。试验结果表明,基于EDTA-Cu和改性聚氨酯的柔性阴极具有较好... 详细信息

为制备低成本和环保的柔性阴极,研究柔性电极的制备机理,本文以EDTA-Cu为活性材料,利用激光诱导化学镀铜工艺,制备了电解加工柔性阴极并进行了系统表征,对相关机理进行了探讨。试验结果表明,基于EDTA-Cu和改性聚氨酯的柔性阴极具有较好的激光诱导化学镀铜选择性,活性材料的成分和颗粒形貌、激光功率、扫描速度、激光波长、激光光斑尺寸和脉冲频率等是影响镀铜精度的主要因素,通过调整相关因素可以有效控制镀铜精度。此外,X射线能谱和俄歇电子能谱的测试结果表明,基于EDTA-Cu的柔性阴极经激光扫描后,扫描区域出现Cu^(0)和Cu^(+1),从而揭示出以EDTA-Cu为活性成分的柔性阴极的化学镀铜机理。经过验证,EDTA-Cu制备的柔性电极可以满足电解加工的要求,能够加工出边缘齐整的线条。

关键词：改性聚氨酯 EDTA-Cu 激光活化化学镀铜电解加工喷雾干燥

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

120kV下重频纳秒脉冲气体击穿特性研究

引用

电工技术学报 2005年第7期20卷 44-49,62页

作者：邵涛王珏黄文力孙广生严萍张适昌中国科学院电工研究所

在120kV的重复频率(10Hz,100Hz,500Hz,1000Hz)脉冲高压下,研究了干燥空气在平板间隙(5～15mm),气压(0.1～0.5MPa)下的击穿特性。得到了击穿时延、重复频率耐受时间、施加脉冲个数等与重复频率的关系,并观察到相关的发光现象。结果表明... 详细信息

在120kV的重复频率(10Hz,100Hz,500Hz,1000Hz)脉冲高压下,研究了干燥空气在平板间隙(5～15mm),气压(0.1～0.5MPa)下的击穿特性。得到了击穿时延、重复频率耐受时间、施加脉冲个数等与重复频率的关系,并观察到相关的发光现象。结果表明经典的流注击穿判据不符合重复频率脉冲下的击穿,高重复频率下的击穿与低重复频率下的击穿不同。重复频率的纳秒脉冲下的击穿需要考虑受激粒子、残余电荷等在放电过程的影响。亚稳态受激粒子、空间残余电荷的积累效应产生大量的初始电子,从而气体击穿是大量初始电子引燃,多弧道的击穿。

关键词：气体放电重复频率脉冲击穿特性

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：