检索结果-南通市图书馆

Comparative Study of Bond Orientational Order and Pair Analysisin Describing Local Symmetry in liquid metals

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 1995年第5期11卷 363-368页

作者： CHEN, KY LIU, HB HU, ZQ Inst of Metal Research Chinese Acad of Sciences Shenyang China

The similarity and difference between the bond orientational order and pair analysis methods have been first identified with the help of molecular dynamics simulation and the steepest descent minimization of potentials techniques. The binary liquid K-Rb alloys are chosen as an example. Results show that the bond orientational order parameters may be a relevant direct measurement on the perfection of an icosahedron. The PA formula (1551 bonded pairs) is, however, responsible for the total number of various icosahedra. In addition, it is found that pair analysis approach is more sensible to local structure than that for bond orientational order.

关键词： liquid metals

Recent advances for liquid metals:Synthesis,modification and bio-applications

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2023年第12期143卷 153-168页

作者： Zhenhu Guo Xiaohan Gao Jingsong Lu Wanling Xu Jielin Ye Ying Li Wensheng Xie Lingyun Zhao Key Laboratory of Advanced Materials Ministry of Education of ChinaSchool of Materials Science and EngineeringTsinghua UniversityBeijing 100084China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China School of Medicine Tsinghua UniversityBeijing 100084China Department of Neurosurgery Yuquan HospitalSchool of Clinical MedicineTsinghua UniversityBeijing 100084China The Key Laboratory of Bioorganic Phosphorus Chemistry&Chemical Biology(Ministry of Education) Department of ChemistryTsinghua UniversityBeijing 100084China

Considering the application requirements for modern biomedicine,research into novel biomaterials with unusual functions is highly *** an alternative,liquid metals(LMs),a nontraditional family of metal materials,have piqued the interest of biomedical researchers and made significant advances in biomed-ical areas,owing to their shape transformability,self-healing capability,excellent electrical,and thermal *** particular,many functionalized strategies for the preparation and modification of LMs or LMs-based composites to achieve extended biomedical applications have been investigated in recent *** findings provided inspiring while constructive reference for the fabrication and engineering of novel LMs-based ***,in this topic review,we elaborate on the recent advances of LMs-based functional materials,with particular focuses on the synthesis,modification,and bio-applications,especially in antitumor therapy,antibacterial,contrast agent for imaging,bone repair,electronic skin sen-sor,and nerve connection *** on,the current challenges and future prospects of LMs-based composites are carefully discussed.

关键词： liquid metals Synthesis Composites Antitumor therapy Bio-application

Voltage-induced penetration effect in liquid metals at room temperature

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

National Science Review 2020年第2期7卷 366-372页

作者： Frank F Yun Zhenwei Yu Yahua He Lei Jiang Zhao Wang Haoshuang Gu Xiaolin Wang Institute for Superconducting and Electronic Materials Australian Institute for Innovative Materials University of Wollongong Laboratory of Bioinspired Smart Interfacial Science Technical Institute of Physics and Chemistry Chinese Academy of Sciences Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices Faculty of Physics and Electronic Sciences Hubei University ARC Centre of Excellence in Future Low-Energy Electronics Technologies University of Wollongong

Room-temperature liquid metal is discovered to be capable of penetrating through macro-and microporous materials by applying a voltage. The liquid metal penetration effects are demonstrated in various porous materials such as tissue paper, thick and fine sponges, fabrics, and meshes. The underlying mechanism is that the high surface tension of liquid metal can be significantly reduced to near-zero due to the voltage-induced oxidation of the liquid metal surface in a solution. It is the extremely low surface tension and gravity that cause the liquid metal to superwet the solid surface, leading to the penetration phenomena. These findings offer new opportunities for novel microfluidic applications and could promote further discovery of more exotic fluid states of liquid metals.

关键词： penetration effects liquid metals surface tension porous materials superwet

Universal Scaling Law for Atomic Diffusion and Viscosity in liquid metals

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics Letters 2004年第12期21卷 2489-2492页

作者：黎光旭刘长松朱震刚 KeyLaboratoryofMaterialsPhysics InstituteofSolidStatePhysicsChineseAcademyofSciencesPOBOX1129Hefei230031

The recently proposed scaling law relating the diffusion coefficient and the excess entropy of liquid [Samanta A et al. 2004 Phys. Rev. Lett. 92 145901; Dzugutov M 1996 Nature 381 137], and a quasi-universal relationship between the transport coefficients and excess entropy of dense fluids [Rosenfeld Y 1977 it Phys. Rev. A 15 2545], are tested for diverse liquid metals using molecular dynamics simulations. Interatomic potentials derived from the glue potential and second-moment approximation of tight-binding scheme are used to study liquid metals. Our simulation results give sound support to the above-mentioned universal scaling laws. Following Dzugutov, we have also reached a new universal scaling relationship between the viscosity coefficient and excess entropy. The simulation results suggest that the reduced transport coefficients can be expressed approximately in terms of the corresponding packing density.

关键词： liquid metals

A New Model for Microstructure of liquid metals

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics Letters 2004年第4期21卷 700-703页

作者：田学雷沈军孙剑飞李庆春 NationalKeyLaboratoryofPrecisionHotProcessingofmetals HarbinInstituteofTechnologyHarbin150001

A nanocrystalline model for microstructures of liquid metals is constructed. According to the nanocrystalline model, the intensity curves of x-ray diffraction (XRD) on liquid Cu, Al and Al65Cu20Fe15 alloy are derived by broadening the XRD peaks of these metals in some crystal structures. These broadening intensity curves are identical with the results measured by an x-ray diffractometer on these liquid metals. The present results indicate that the nanocrystal model may be helpful to understand the microstructures of liquid metals and that there is a close correlation between the short-range orders (SROs) of these liquid metals and some crystal lattice structures. That is, the SRO structures of liquid Cu, Al and Al65Cu20Fe15 alloy are fcc, bcc and icosahedron, respectively.

关键词： liquid metals

Molecular dynamics simulation of self-diffusion coefficients for liquid metals

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics B 2013年第8期22卷 365-368页

作者：巨圆圆张庆明龚自正姬广富 State Key Laboratory of Explosion Science and Technology Beijing Institute of Technology National Key Laboratory of Science and Technology on Reliability and Environment Engineering Beijing Institute of Spacecraft Environment Engineering Laboratory for Shock Wave and Detonation Physics Research Institute of Fluid Physics China Academy of Engineering Physics

The temperature-dependent coefficients of self-diffusion for liquid metals are simulated by molecular dynamics meth ods based on the embedded-atom-method （EAM） potential function. The simulated results show that a good inverse linear relation exists between the natural logarithm of self-diffusion coefficients and temperature, though the results in the litera ture vary somewhat, due to the employment of different potential functions. The estimated activation energy of liquid metals obtained by fitting the Arrhenius formula is close to the experimental data. The temperature-dependent shear-viscosities obtained from the Stokes-Einstein relation in conjunction with the results of molecular dynamics simulation are generally consistent with other values in the literature.

关键词： molecular dynamics self-diffusion coefficients shear-viscosity liquid metals

Growth of 2D MoP single crystals on liquid metals by chemical vapor deposition

在线全文

学校读者我要写书评

暂无评论

Science China Materials 2021年第5期64卷 1182-1188页

作者： Feifei Cao Shuting Zheng Jingjing Liang Zhi Li Bin Wei Yiran Ding Zhongchang Wang Mengqi Zeng Nan Xu Lei Fu Institute for Advanced Studies(IAS) Wuhan UniversityWuhan 430072China College of Chemistry and Molecular Sciences Wuhan UniversityWuhan 430072China MIIT Key Laboratory of Advanced Display Materials and Devices Ministry of Industry and Information TechnologyInstitute of Optoelectronics&NanomaterialsNanjing University of Science and TechnologyNanjing 210094China Department of Quantum and Energy Materials International Iberian Nanotechnology Laboratory(INL)4715-330 BragaPortugal

Two-dimensional(2 D) transition metal phosphides(TMPs) are predicted with many novel properties and various applications. As a member of TMPs family, molybdenum phosphide(MoP) exhibits many exotic physicochemical properties. However, the synthesis of high-quality2 D MoP single crystals is not reported due to the lack of reliable fabrication method, which limits the exploration of 2 D MoP. Here, we report the growth of high-quality ultrathin MoP single crystals with thickness down to 10 nm on liquid metals via chemical vapor deposition(CVD). The smooth surface of liquid Ga is regarded as a suitable growth substrate for producing 2 D MoP single crystals. The Mo source diffuses toward the Ga surface due to the high surface energy to react with phosphorus source, thus to fabricate ultrathin MoP single crystals. Then, we study the second harmonic generation(SHG) of 2 D MoP for the first time due to its intrinsic noncentrosymmetric structure. Our study provides an new approach to synthesize and explore other 2 D TMPs for future applications.

关键词： 2D materials transition metal phosphides molybdenum phosphides liquid metals chemical vapor deposition

liquid metal as an efficient protective layer for lithium metal anodes in all-solid-state batteries

在线全文

学校读者我要写书评

暂无评论

Carbon Energy 2024年第7期6卷 219-229页

作者： Shiqiang Zhou Mengrui Li Peike Wang Lukuan Cheng Lina Chen Yan Huang Boxuan Cao Suzhu Yu Qingju Liu Jun Wei Shenzhen Key Laboratory of Flexible Printed Electronics Technology Harbin Institute of TechnologyShenzhenChina School of Materials Science and Engineering Harbin Institute of TechnologyShenzhenChina State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyHarbinChina Yunnan Key Laboratory for Micro/Nano Materials and Technology School of Materials and EnergyYunnan UniversityKunmingChina

Lithium metal batteries with inorganic solid-state electrolytes have emerged as strong and attractive candidates for electrochemical energy storage devices because of their high-energy content and ***,inherent challenges of deleterious lithium dendrite growth and poor interfacial stability hinder their commercial ***,we report a liquid metal-coated lithium metal(LM@Li)anode strategy to improve the contact between lithium metal and a Li6PS5Cl inorganic *** LM@Li symmetric cell shows over 1000 h of stable lithium plating/stripping cycles at 2mA cm^(-2) and a significantly higher critical current density of 9.8 mAcm^(-2) at 25°*** addition,a full battery assembled with a high-capacity composite LiNbO3@-LiNi_(0.7)Co_(0.2)Mn_(0.1)O_(2)(LNO@NCM721)cathode shows stable cycling *** and computational results have demonstrated that dendrite growth tolerance and physical contact in solid-state batteries can be reinforced by using LM interlayers for interfacial modification.

关键词： all-solid-state batteries interface engineering liquid metals lithium metal anodes

liquid Metal Grid Patterned Thin Film Devices Toward Absorption‑Dominant and Strain‑Tunable Electromagnetic Interference Shielding

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2024年第11期16卷 541-553页

作者： Yuwen Wei Priyanuj Bhuyan Suk Jin Kwon Sihyun Kim Yejin Bae Mukesh Singh Duy Thanh Tran Minjeong Ha Kwang‑Un Jeong Xing Ma Byeongjin Park Sungjune Park Department of Polymer‑Nano Science and Technology Department of Nano Convergence EngineeringJeonbuk National UniversityJeonju 54896Republic of Korea School of Chemical Engineering Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea Composites Research Division Korea Institute of Materials ScienceChangwon 51508Republic of Korea School of Materials Science and Engineering Gwangju Institute of Science and TechnologyGwangju 61005Republic of Korea School of Materials Science and Engineering and Sauvage Laboratory for Smart MaterialsHarbin Institute of Technology(Shenzhen)ShenzhenGuangdong 518055People’s Republic of China

The demand of high-performance thin-film-shaped deformable electromagnetic interference(EMI)shielding devices is increasing for the next generation of wearable and miniaturized soft *** highly reflective conductive materials can effectively shield EMI,they prevent deformation of the devices owing to rigidity and generate secondary electromagnetic pollution ***,soft and stretchable EMI shielding thin film devices with absorption-dominant EMI shielding behavior is *** devices consist of liquid metal(LM)layer and LM grid-patterned layer separated by a thin elastomeric film,fabricated by leveraging superior adhesion of aerosol-deposited LM on *** devices demonstrate high electromagnetic shielding effectiveness(SE)(SE_(T) of up to 75 dB)with low reflectance(SER of 1.5 dB at the resonant frequency)owing to EMI absorption induced by multiple internal reflection generated in the LM grid ***,the excellent stretchability of the LM-based devices facilitates tunable EMI shielding abilities through grid space adjustment upon strain(resonant frequency shift from 81.3 to 71.3 GHz@33%strain)and is also capable of retaining shielding effectiveness even after multiple strain *** newly explored device presents an advanced paradigm for powerful EMI shielding performance for next-generation smart electronics.

关键词： Absorption-dominant electromagnetic interference shielding liquid metals Soft and stretchable electronics Thin film devices Tunable electromagnetic interference shielding