检索结果-南通市图书馆

Enhanced piezoelectricity in Na and Ce co-doped CaBi_(4)Ti_(4)O_(15) ceramics for high-temperature applications

Journal of Advanced Ceramics 2023年第7期12卷 1331-1344页

作者： Zimeng Hu vladimir koval Hangfeng Zhang Kan Chen Yajun Yue Dou Zhang Haixue Yan School of Engineering and Materials Science Queen Mary University of LondonLondon E14NSUK Institute of Materials Research Slovak Academy of SciencesKosice 04001Slovakia Spallation Neutron Source Science Center Dongguan 523803China Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083China

The sodium(Na)and Ce co-doped calcium bismuth titanate(CBT;CaBi_(4)Ti_(4)O_(15))Aurivillius ceramics in a Ca_(1-x)(Na_(0.5)Ce_(0.5)),Bi_(4)Ti_(4)O_(15)(CNCBT;doping content(x)=0,0.03,0.05,0.08 and 0.12)system were synthesized by the conventional solid-state sintering *** compositions show a single-phase orthorhombic(space group:A2jam)structure at room *** shift of the Curie point(T_(c))towards lower temperatures(T)on doping results from the increased tolerance factor(t).The substitution-enhanced ferroelectric performance with large maximum polarization(P_(m))and facilitated domain switching is evidenced by the developed electrical polarization-electric field(P-E)and electrical current-electric field(I-E)hysteresis *** piezoelectric coefficient(d_(33)=20.5±0.1 pC/N)of the x=0.12 sample is about four times larger than that of pure *** improved piezoelectric properties can be attributed to the high remanent polarization(P_(r))and relatively high dielectric permittivity(ε′).In addition,multi-sized(micron and sub-micron)domain structures were observed in the CNCBT ceramics by the piezoresponse force microscope(PFM).The multiple-sized ferroelectric domain structure with smaller domains is beneficial to the easy domain switching,enhanced ferroelectric performance,and improved piezoelectric properties of the CNCBT *** designed Aurivillius-phase ferroelectric ceramics with the T_(c) around 765℃and high piezoelectric coefficient(d_(33))are suitable for high-temperature piezoelectric applications.

关键词： Aurivillius-phase ceramics high Curie point domain switching,piezoelectric properties

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

Dynamical anisotropic magnetoelectric effects at ferroelectric/ferromagnetic insulator interfaces

引用

Chinese Physics B 2019年第9期28卷 57-61页

作者： Yaojin Li Chenglong Jia Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education Lanzhou UniversityLanzhou 730000China Electronic Materials Research Laboratory International Center for Dielectric Research Xi’an Jiaotong UniversityXi’an 710049China Institute of Materials Research Slovak Academy of Sciences Watsonova 4704001 KosiceSlovakia

The interfacial magnetoelectric interaction originating from multi-orbital hopping processes with ferroelectricassociated vector potential is theoretically investigated for complex-oxide composite *** mismatch in the electrical permittivity of the ferroelectric and ferromagnetic materials gives rise to giant anisotropic magnetoelectric effects at their *** study reveals a strong linear dynamic magnetoelectric coupling which genuinely results in electric control of magnetic *** constitutive conditions for negative refractive index of multiferroic composites are determined by the analysis of light propagation.

关键词： interfacial magnetoelectric effect ferromagnetic insulator magnetic susceptibility refractive index

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

Magnetoelectric coupling at microwave frequencies observed in bismuth ferrite-based multiferroics at room temperature

引用

Journal of Materials Science & Technology 2023年第6期137卷 100-103页

作者： Man Zhang vladimir koval Yu Shi Yajun Yue Chenglong Jia Jiagang Wu Giuseppe Viola Haixue Yan School of Engineering and Materials Science Queen Mary University of LondonMile End RoadLondon E14NSUK Institute of Materials Research Slovak Academy of SciencesWatsonova 47Kosice 04001Slovakia Key Laboratory for Magnetism and Magnetic Materials of MOE Lanzhou UniversityLanzhou 730000China Department of Chemistry Queen Mary University of LondonMile End RoadLondon E14NSUK Department of Materials Science Sichuan UniversityChengdu 610064China

***,In the search for advanced multifunctional materials for next generation sensors and logic devices,magnetoelectric multifer-roics exhibiting simultaneously ferromagnetism and ferroelectric-ity within the same phas... 详细信息

关键词： microwave coupling ferroelectric

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

Temperature-dependent deformation in silver-particle-covered copper nanowires by molecular dynamics simulation

引用

Journal of Materiomics 2022年第1期8卷 68-78页

作者： Pengtao Li Y.Q.Yang vladimir koval Xian Luo Jianxin Chen Wei Zhang E.Emily Lin Bowen Wang Haixue Yan State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi'an710072China Institute of Materials Research Slovak Academy of SciencesKosice04001Slovakia School of Chemistry and Chemical Engineering Northwestern Polytechnical UniversityXi'an71072China Northwest Institute for Nonferrous Metal Research Xi'an710016China School of Engineering&Material Science Queen Mary University of LondonMile End RoadE14NSLondonUnited Kingdom

Cu nanowires covered by Ag particles is studied for potential applications in the next-generation *** date,the deformation mechanism in the Cu-Ag core-particle is not ***,molecular dynamics simulation is used to describe the Cu-Ag core-particle *** results show that the equilibrium structure of Ag particles is reconstructed,when the particle≤1.0 *** low temperature(1 K)indicate that three different deformation processes take part in the core-particle structure,depending on the size of Ag *** the particle diameter≤2.0 nm,the prevailing deformation mechanism is the emission of dislocations from the Cu *** the particle diameters ranging from 3.0 to 6.0 nm,the emission of misfit dislocations from the Ag-Cu interface is the dominant deformation *** the Ag particle≥6.0 nm,the deformation mechanism can be characterized by the slip band,consisting of the dislocations and amorphous *** elevated temperatures(2-400 K),the mechanical properties of the Ag-Cu core-shell system are nearly independent of temperature,whereas the structure with particles larger than 2.0 nm showed a strong dependence of its mechanical properties on *** on the results,the diameter-temperature plastic deformation map is proposed.

关键词： Nanowires Deformation Cu-Ag Nano particle Dislocation

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

Pediatric GNAO1 encephalopathies:from molecular etiology of the disease to drug discovery

引用

Neural Regeneration Research 2023年第10期18卷 2188-2189页

作者： vladimir L.Katanaev Jana Valnohova Denis N.Silachev Yonika A.Larasati Alexey koval Translational Research Centre in Oncohaematology Department of Cell Physiology and MetabolismFaculty of MedicineUniversity of GenevaGenevaSwitzerland Institute of Life Sciences and Biomedicine Far Eastern Federal UniversityVladivostokRussia Department of Functional Biochemistry of Biopolymers A.N.Belozersky Research Institute of Physico-Chemical BiologyMoscow State UniversityMoscowRussia

Gao is the major G protein in neurons,where it transduces signals from numerous G proteincoupled receptors(GPCRs)such as D2 dopamine,μ-opioid,M2 muscarinic,or α2-adrenergic *** 2013,the first mutations in GNAO1,the gene encoding Gao,were described in pediatric patients with encephalopathies(Nakamura et al.,2013),suffering from movementdisorders,epileptic seizures。

关键词： encephalo opioid

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

Effects of Substrate Pulse Bias Duty Cycle on the Microstructure and Mechanical Properties of Ti–Cu–N Films Deposited by Magnetic Field-Enhanced Arc Ion Plating

引用

Acta Metallurgica Sinica(English Letters) 2017年第2期30卷 176-184页

作者： Sheng-Sheng Zhao Yan-Hui Zhao Lv-Sha Cheng vladimir Viktorovich Denisov Nikolay Nikolaevich koval Bao-Hai Yu Hai-Juan Mei School of Mechanical and Electrical Engineering Shenzhen Polytechnic Institute of Metal Research Chinese Academy of Sciences Institute of High Current Electronics Siberian BranchRussian Academy of Sciences

Ti–Cu–N films were deposited on 316 L stainless steel substrates by magnetic field-enhanced arc ion *** effect of substrate pulse bias duty cycle on the chemical composition,microstructure,surface morphology,mechanical and tribological properties of the films was systemically *** results showed that,with increasing the duty cycle,Cu content decreases from 3.3 to 0.58 at.%.XRD results showed that only Ti N phase is observed for all the deposited films and the preferred orientation transformed from Ti N（200） to Ti N（111） plane with the increase in duty *** surface roughness and deposition rate showed monotonous decrease with increasing the duty *** residual stress and hardness firstly increase and then decrease afterwards with the increase in duty cycle,while the variation of critical load shows reverse *** for the film with duty cycle of 10%,others perform the better wear resistance.

关键词： Magnetic field Arc ion plating Ti-Cu-N film Residual stress Hardness

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

LOW-ENERGY,HIGH-CURRENT ELECTRON BEAM TRANSPORTATION THROUGH A PLASMA CHANNEL IN A GUIDE MAGNETIC FIELD

LOW-ENERGY,HIGH-CURRENT ELECTRON BEAM TRANSPORTATION THROUGH...

引用

The 17th International Conference on High-Power Particle Beams

作者： Grigory E.Ozur vladimir P.Grigoriev Tamara V.koval Evgeny V.Nefyodtsev Institute of High Current Electronics Siberian BranchRussian Academy of Sciences 2/3Academichesky Ave.Tomsk634055Russia Institute Cybernetic Centre Tomsk Polytechnic University84Sovetskaya Str.634034Russia Institute of High Current Electronics Siberian BranchRussian Academy of Sciences 2/3Academichesky Ave.Tomsk634055Russia

＜正＞The process of high-current,low-energy electron beam transportation through a plasma channel in a guide magnetic field has been studied experimentally and by the use of computer *** has been shown that the decrease of the beam current amplitude with the length of the drift channel as well as the transformation of the beam energy distribution via its cross section may be explained by incomplete neutralization of the beam space charge at the stage of beam current rising.

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

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

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

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：