Xi Wang

Beijing Jiaotong University

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Dmitri Golberg

National Institute for Materials Science

Yoshio Bando

King Saud University

Yijun Yang

Beijing Jiaotong University

Jiannian Yao

Chinese Academy of Sciences

Qiong Zhang

Clemson University

Paparao Palacharla

Fujitsu (United States)

Xianghuai Liu

Chinese Academy of Sciences

Yi Ding

Beijing Jiaotong University

Fei Lu

Yangzhou University

Qunhong Weng

Hunan University

Cooperative Institutions

Chinese Academy of Sciences

922

University of Chinese Academy of Sciences

471

Pontifical Catholic University of Rio de Janeiro

381

Universidade Estadual de Londrina

381

A. Alikhanyan National Laboratory

380

Beijing Normal University

372

Institute of High Energy Physics

339

Université Libre de Bruxelles

330

Federico Santa María Technical University

252

Tsinghua University

235

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Mechanical properties and microstructure evolution of Cu/Sn58Bi/Cu solder joint reinforced by B4C nanoparticles

Journal of Materials Research and Technology (2023)

Chen Chen Liang Zhang Xi Wang Xiao Lu Lili Gao

The mechanical mixed Sn58Bi solder reinforced by B4C nanoparticles for the interconnect of Cu/Cu same metal was studied. The hardness of solder alloy and shear strength of joints with Sn58Bi-xB4C (x = 0, 0.2, 0.4, 0.6, 0.8, 1.0 wt%) composite solder were tested. The feasibility of the solution was verified by the performance of melting characteristics, wettability, microstructure, and interfacial IMC structure. It is indicated that the proper amount of B4C nanoparticles can improve the mechanical properties of the solder joint, and the hardness of the solder alloy is decreased to 246.0 HV by 13.65% with the addition of 0.6 wt% B4C and the highest shear strength of the joint reaches 52.282 MPa, which is increased by 8.9%. The failure mode of fracture is mainly considered a brittle fracture. The preferred orientation of the β-Sn phase and Bi phase are (1 0 0) and (1 0 1), respectively, and the number of low-angle grain boundary and dislocation density are increased. The melting characteristics of the solder are less affected by B4C nanoparticles, which will not interfere with its normal use. When the amount of B4C is 0.6 wt%, the spreading area of the solder is increased by 35.44%. Besides, a moderate amount of B4C nanoparticles is able to refine the matrix structure of the solder and inhibit the growth of Cu6Sn5 IMC.

Shear Strength

Brittleness

10.1016/j.jmrt.2023.01.077

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Citations (28)

Constructing radially oriented macroporous spheres with central cavities as ultrastable lithium-ion battery anodes

Energy storage materials (2018)

Yu Zhang Yong Xu Yongjun Ji Xi Wang Jing Li

Nanorod

10.1016/j.ensm.2018.07.011

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Citations (27)

Enhanced electrochemical performance by polyaniline (PANI) on covalent organic framework - Carbon nanotube (COF-CNT) as cathode catalyst for microbial fuel cells

International Journal of Hydrogen Energy (2023)

Fengfei Sun Rui Li Xi Wang Xingjia Zheng Yuewei Yang

Covalent organic framework

Specific surface area

Interfacial polymerization

10.1016/j.ijhydene.2023.11.189

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Citations (11)

CCDC 952936: Experimental Crystal Structure Determination

The Cambridge Structural Database (2014)

Miao Du Min Chen Xiaogang Yang Jiong Wen Xi Wang

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/cc10zlwg

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Citations (0)

Experimental investigation of particulate matter structures under partially premixed combustion in a compression ignition engine

Fuel (2019)

Hanyu Chen Minfei Wang Xi Wang Deqiang Li Zhixiang Pan

Tortuosity

Dispersity

Particle (ecology)

10.1016/j.fuel.2019.116286

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Citations (18)

Anodic aluminium oxide rear passivated laser-doped selective-emitter solar cells

2017 IEEE 44th Photovoltaic Specialist Conference (PVSC) (2014)

Jie Cui Xi Wang Dong Lin Pei Hsuan Lu Alison Lennon

This paper presents a passivated emitter and rear cell (PERC) design featuring an anodic aluminium oxide (AAO) - thin SiO ₂ stack layer for rear surface passivation. Rear contacts were formed by laser-doping lines through the nano-porous AAO layer and then sintering aluminium through the lines to make electrical contact. Open circuit voltages as high as 660 mV were achieved which is comparable to voltages achieved from cells with plasma enhanced chemical vapor deposited Al ₂ O ₃ and a-SiN _x :H rear stack layers. High series resistance and a poor SiN _x antireflection coating limited the fill factor and short circuit current, respectively.

Passivation

Aluminium oxides

10.1109/pvsc.2014.6924989

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Citations (3)

Successful Orthotopic Liver Transplantation in Mice Utilizing Microcomputed Tomography Angiography

Journal of Visualized Experiments (2023)

Qiang Zeng Doug A. Gouchoe Mahboubeh Nabavinia Yong Gyu Lee Xi Wang

Microcomputed tomography (microCT) angiography is an invaluable resource to researchers. New advances in this technology have allowed for high-quality images to be obtained of micro-vasculature and are high-fidelity tools in the field of organ transplantation. In this model of orthotopic liver transplantation (OLT) in mice, microCT affords the opportunity to evaluate allograft anastomosis in real time and has the added benefit of not having to sacrifice study animals. The choice of contrast, as well as image acquisition settings, create a high-definition image, which gives researchers invaluable information. This allows for evaluation of the technical aspects of the procedure as well as potentially evaluating different therapeutics over an extended duration of time. In this protocol, we detail an OLT model in mice in a stepwise fashion and finally describe a microCT protocol that can give high-quality images, which aid researchers in in-depth analysis of solid organ transplantation. We provide a step-by-step guide for liver transplantation in a mouse, as well as briefly discuss a protocol for evaluating the patency of the graft through microCT angiography.

Computed Tomography Angiography

10.3791/65537

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Erosion characteristics and simulation charts of sand fracturing casing perforation

Petroleum Science (2023)

Shanzhi Shi Sisong Zhang Ning Cheng Gang Tian Dezhi Zeng

Large-scale sand fracturing is a necessary means in the efficient exploitation of shale gas/oil. However, in the process of fracturing operation, the sand carrying fluid and proppant easily causes scouring and wear to production strings, especially the casing perforation system, which damage the wellbore integrity and deformation to affect the subsequent fracturing. For this problem, taking the actual construction conditions and perforation technology of an oilfield in western China as an example, the structural parameters of the downhole string were measured and the wall thickness reduction model of casing perforation suitable for large-displacement sand fracturing in horizontal well section was established. With software ANSYS-FLUENT, the casing perforation erosion under the conditions of different displacements, sand content and perforation sand-passing quantity in the process of sand fracturing was simulated and calculated. The influences of three parameters on perforation erosion and expansion were analyzed and the prediction chart of the influences of three main control factors on perforation erosion and expansion was established. The perforation erosion images after fracturing construction were obtained with the downhole eagle perforation logging technology. The logging chart results were compared with the downhole eagle perforation data. The error between the established numerical simulation calculation charts and the real logging data was about 5%, indicating that the simulation charts were the valuable reference.

Perforation

10.1016/j.petsci.2023.06.001

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Citations (4)

Recent Developments in One‐Dimensional Inorganic Nanostructures for Photodetectors

Advanced Functional Materials (2010)

Tianyou Zhai Liang Li Xi Wang Xiaosheng Fang Yoshio Bando

Abstract With large surface‐to‐volume ratios and Debye length comparable to their small sizes, one‐dimensional inorganic nanostructures have extensively been investigated and widely used to fabricate high‐performance nanoscale electronic and optoelectronic devices. This feature article reviews the state‐of‐the‐art research activities that focus on the one‐dimensional inorganic nanostructures and their photodetector applications. It begins with a survey of one‐dimensional inorganic nanostructures and the fundamentals of photodetectors. Some remarkable photoresponse characteristics are then presented, which are organized into sections covering several kinds of important nanostructures, such as ZnO, V 2 O 5 , ZnS, In 2 Se 3 , InSe, CdS, CdSe, ZnSe, Sb 2 Se 3 , ZrS 2 , Ag 2 S, and Zn x Cd 1‐ x Se. Each section describes the corresponding photodetective properties in detail. Finally, the article concludes with some perspectives and outlook on the future developments in the field.

10.1002/adfm.201001259

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Citations (327)

High-Efficiency Synergetic Clustered Triazinylphosphinate Composite Flame Retardant System Enhance Fire Resistance, Smoke Suppression, and Resilience of Flexible Polyurethane Foams

Yi Zhang Xi Wang Lijun Qian Wei Tang Lijie Qu

Resilience

10.2139/ssrn.5119634

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Citations (0)