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21st International Conference on composite Materials, ICCM 2017

作者： Hu, Jianqiang Li, Yanqi Dai, Fuhong National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin150080 China

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Error Compensation for 3D Digital Laser Scanning Data Based on the Surface of Aluminum Coated F-12 Aramid Plain Weave Fabric and a Test of Configuration for Large Balloon

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Journal of Physics: Conference Series 2019年第1期1215卷

作者： Yong Zheng Shen Guo Chang Lin Hui Feng Tan National Key Laboratory of Science and Technology for National Defence on Advanced Composites in Special Environments Harbin Institute of Technology Harbin 150001 China

The measurement of the configuration parameters for the large balloon is an important content, including volume, surface area and specific size under a certain internal pressure. Non-contact measurement techniques using laser scanning have the advantage of fast acquiring large numbers of points. However, compared to their contact-based counterparts, these techniques are known to be less accurate. Furthermore, this accuracy depends on different parameters such as materials properties, surface texture, product color, etc. The large balloon is made by aluminum coated F-12 aramid plain weave fabric pieces. The digitizing errors for high-speed 3D digital laser scanning data based on the surface of F12 fabric material are analyzed and characterized in this paper. With error characterisation, an empirical model is obtained relating the errors to the influencing factor. Establishing a reasonable test scheme and using the technology of laser scanning, the spatial information of the surface for large balloon can be obtained quickly. The empirical formula is used to compensate for 3D laser scanning data of large balloon. The problem of compensation for 3D laser scanning data for improved test accuracy is addressed. The more accurate parameters of the configuration for large balloon are quickly obtained. This provides a method for the rapid, high-efficiency and high-precision test of configuration for large balloon.

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Cover Feature: Defect Engineering in Metastable Phases of Transition‐Metal Dichalcogenides for Electrochemical Applications (Chem. Asian J. 23/2020)

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Chemistry – An Asian Journal 2020年第23期15卷 3914-3914页

作者： Ran Wang Prof. Jiecai Han Bo Yang Prof. Xianjie Wang Prof. Xinghong Zhang Prof. Bo Song National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin 150001 P. R. China China Institute of Marine Technology and Economy Beijing 100081 P. R. China Department of Physics Harbin Institute of Technology Harbin 150001 P. R. China

Metastable metallic phases of two‐dimensional (2D) transition metal dichalcogenide (TMD) nanomaterials have attracted great research interest and promoted the applications of sustainable energy storage and conversion sources. These TMD‐based nanomaterials exhibit an excellent electrochemical performance because of their abundant active sites and extraordinary physicochemical properties. This review provides deep insights into recent progress and highlights key challenges for defect engineering in the metastable phases of TMDs. More information can be found in the Minireview by Bo Song, Xinghong Zhang et al.

关键词： transition-metal dichalcogenides 1T phase defect engineering electrochemistry energy source

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A coupled FEM/PD based on substructure method for progressive damage analysis of composite laminate 21

A coupled FEM/PD based on substructure method for progressiv...

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21st International Conference on composite Materials, ICCM 2017

作者： Liu, Shuo Fang, Guodong Liang, Jun Wang, Bing Science and Technology on Advanced Composites in Special Environments Key Laboratory Harbin Institute of Technology Harbin150001 China Institute of Advanced Technology Beijing Institute of Technology Beijing China

A new method of coupling finite element method (FEM) and peridynamics (PD) is proposed to analyze the progressive damage of fiber reinforced composite laminate. The computational efficiency of FEM is higher than peridynamics. But peridynamics is good at calculating discontinuous solution. In order to exert the advantages of the above two methods, the solution is divided into three parts. In the dangerous region, peridynamics is adopted. And FEM is used in the non-dangerous region. The remaining region is the coupling FEM/PD region, where the peridynamics particles are interacted with neighboring finite element nodes each other. And the contribution stiffness of FEM and peridynamics particles can be written in the global stiffness matrix together. The substructure method is also used to reduce computational effort further. The progressive damage and failure modes of composite laminates under a tensile load can be successfully analyzed. It is shown that this proposed method had a great potential to analyze the mechanical behavior of composites. © 2017 International Committee on composite Materials. All rights reserved.

关键词： composite laminate Coupling Damage Failure mode Peridynamics

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Correction: Investigating the electroactivity of nitrogen species in MoC nanoparticles/N-doped carbon nanosheets for high-performance Na/Li-ion batteries

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Journal of Materials Chemistry A 2020年第42期8卷 22434-22434页

作者： Qing Wu Xiaofeng Li Xianjie Wang Tai Yao Ying Bai Jikang Jian Bo Song Department of Physics Harbin Institute of Technology Harbin 150001 China Interdisciplinary Science Research Center Harbin Institute of Technology Harbin 150001 China School of Physics & Electronics Henan University Kaifeng 475004 China School of Physics and Optoelectronic Engineering Guangdong University of Technology Guangzhou P. R. China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin 150001 China

Correction for ‘Investigating the electroactivity of nitrogen species in MoC nanoparticles/N-doped carbon nanosheets for high-performance Na/Li-ion batteries’ by Qing Wu et al., J. Mater. Chem. A, 2020, DOI: 10.1039...

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SUPERHIGH THERMAL CONDUCTIVITY OF THREE-DIMENSIONAL GRAPHENE-BASED NANOcomposite

SUPERHIGH THERMAL CONDUCTIVITY OF THREE-DIMENSIONAL GRAPHENE...

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第二十一届国际复合材料大会

作者： Yibin Li Xianxian Sun Fan Xu Zaishan Lin Qingyu Peng Xiaodong He National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Center for Composite Materials and Structures Harbin Institute of Technology

Graphene was discovered in 2004 and has been attracted more and more attention due to unique physical and mechanical *** unique physical properties, the thermal conductivity of graphene is highest among the materials known as far, which is most attractive in the thermal management ***, how to construct the single-layered graphene into three-dimensional macroscopic nanocomposite with superhigh thermal conductivity is still a *** we propose a novel method to assemble few-layered graphene with no defects into three-dimensional macroscopic graphene-based nanocomposite bulk with oriented graphene *** graphene-based nanocomposite has superhigh thermal conductivity of 1250 W/m.K, three times that of pure ***, the density of graphene-based nanocomposite is less than 2.0 g/cm, only two-ninth that of pure *** graphene-based nanocomposite is very promising in the thermal management, especially for the high-power-density devices.

关键词： Graphene-based nanocomposite Three-dimensional High thermal conductivity

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ULTRA-CONDUCTIVITY LOW THERMAL CONDUCTIVITY OF HIGHLY ORIENTED AND HOLLOW SPHERE-ATTACHING WALLED GRAPHENE/PI NANOcomposite FOAM

ULTRA-CONDUCTIVITY LOW THERMAL CONDUCTIVITY OF HIGHLY ORIENT...

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第二十一届国际复合材料大会

作者： Qingyu Peng Yuyang Qin Xiaodong He Yibin Li National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Center for Composite Materials and Structures Harbin Institute of Technology

Excellent thermal insulation applied at super low temperature is in increasing demand,where the thermal conductivity is expected as low as ***, how to get the ultralow thermal conductivity of thermally insulating materials is still a ***, we report lightweight, mechanically flexible, highly oriented and super-insulating graphene/polyimide nanocomposite foams with hollow graphene spherical *** nanocomposite foam has an ultra-low thermal conductivity of 0.01 W m K along radial *** is attributed to the highly oriented walls of graphene/polyimide driven by directional ice growth during the process of liquid nitrogen freezing and hollow graphene spherical structures which can strongly impede the heat transport and lead to a significant decrease of thermal conductivity in radial *** anisotropic nanocomposite foams may provide new insights into the improvement of energy efficiency and exhibit as an effective and promising insulating materials for thermal management.

关键词： composite foam Graphene foam Thermal insulation

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Polarization-sensitive and broadband photodetection based on a mixed-dimensionality TiS3/Si p-n junction

arXiv

引用

arXiv 2019年

作者： Niu, Yue Frisenda, Riccardo Flores, Eduardo Ares, Jose R. Jiao, Weicheng de Lara, David Perez Sanchez, Carlos Wang, Rongguo Ferrer, Isabel J. Castellanos-Gomez, Andres Science and Technology on Advanced Composites in Special Environments Laboratory Harbin Institute of Technology Harbin150080 China Ciudad Universitaria de Cantoblanco Calle Faraday 9 Madrid28049 Spain . Dpto. de Física de Materiales Universidad Autónoma de Madrid UAM Campus de Cantoblanco MadridE-28049 Spain Instituto Nicolás Cabrera Universidad Autónoma de Madrid UAM Campus de Cantoblanco MadridE-28049 Spain MadridE-28049 Spain

The capability to detect the polarization state of light is crucial in many day-life applications and scientific disciplines. Novel anisotropic two-dimensional materials such as TiS3 combine polarization sensitivity, given by the in-plane optical anisotropy, with excellent electrical properties. Here we demonstrate the fabrication of a monolithic polarization sensitive broadband photodetector based on a mixed-dimensionality TiS3/Si p-n junction. The fabricated devices show broadband responsivity up to 1050 nm, a strong sensitivity to linearly polarized illumination with difference between the two orthogonal polarization states up to 350 % and a good detectivity and fast response time. The discussed devices can be used as building blocks to fabricate more complex polarization sensitive systems such as polarimeters. Copyright © 2019, The Authors. All rights reserved.

关键词： Titanium compounds

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Catalytic properties of ZrB2–SiC–W ultra–high temperature ceramics at moderate temperatures

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IOP Conference Series: Materials science and Engineering 2019年第1期479卷

作者： N Li P Hu P F Xing B Ke Research Center of Laser Fusion China Academy of Engineering Physics Mianyang 621900 PR China National Key laboratory of Science and Technology on advanced composites in Special Environments Harbin Institute of Technology Harbin 150001 PR China

Catalytic behaviors related to recombination reactions of dissociated oxygen atoms on the surface of ZrB2–SiC–W ultra–high temperature ceramic was investigated quantitatively in the temperature ranges from room temperature to 1300 K, and recombination coefficient can be obtained by the photochemical method based on spectral diagnostic techniques using microwave–discharge plasma apparatus. Oxidation of specimens even at relatively low temperature during the experiment had a significant influence on the catalytic properties of ZrB2–SiC–W ultra–high temperature ceramics, and the results revealed the detectable dependence of the catalytic properties upon environment–induced surface modification. The relationship between catalytic properties of ZrB2–SiC–W ultra–high temperature ceramics and surface microstructure was also discussed in detail.

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MECHANICAL PROPERTIES OF NON-CRIMP FABRIC REINFORCED QUASI-ISOTROPIC LAMINATE LOADED IN BIAXIAL TENSION-COMPRESSION

MECHANICAL PROPERTIES OF NON-CRIMP FABRIC REINFORCED QUASI-I...

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第二十一届国际复合材料大会

作者： Songhe Meng Leying Song Chenghai Xu Xinxing Han Wei Wang Science and Technology on Advanced Composites in Special Environments Laboratory Harbin Institute of Technology

The non-crimp fabric reinforced quasi-isotropic composite finds fast growing application in primary structures for its excellent performance at low production costs. The non-crimp fabric prepreg shows significantly better mechanical properties along the fiber direction than the woven counterpart, due to practically straight fibers. It can be further designed into the non-crimp fabric reinforced quasiisotropic composite with good multi-directional in-plane properties. However, the detailed understanding of mechanical behaviors for this kind of composite should be described by experimental study, before it is efficiently used in design and the predictive models are developed. This paper will focus on the mechanical performance of the non-crimp fabric quasi-isotropic laminate under uniaxial tension, uniaxial compression and especially biaxial tension-compression with three different load ratios, which is defined as the ratio of tensile to compressive. Typical stress-strain curves with 1:1 load ratio, as shown in Fig. 1(a), exhibit near linear responses at the initial stage of load, followed by a sharp drop in stress along the compressive direction. It can be observed that the catastrophic failure occurs in compressive direction while the potential ability to withstand the continued tensile stress is also available in tensile direction. The corresponding curves under 3:1 load ratio are shown in Fig.1(b). Two curves present the linear trend at the early stage of load and exhibit sharp drop in stress simultaneously when the final failure occurs. The adopted one-way analysis of variance method indicates load ratio has a significant effect on tensile strength, but has relatively less significant effect on tensile modulus, compressive modulus and compressive strength. The failure analysis with the examinations on the fracture surface is also available to explain the failure modes.

关键词： Non-crimp fabric Biaxial tension-compression Failure analysis Variance analysis

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