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22nd International Conference on Composite Materials, ICCM 2019

作者： Weihua, Xie Fan, Yang Shuo, Han Songhe, Meng National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin China

Explosively formed debris at low earth orbit is one of the most severe hypervelocity impact loading threats to space shuttle. The collision induced crack or perforation would lead to an unzipping of the thermal protection system (TPS) of the impacted shuttle when the impact occurs in their re-entry stage. So far, SiC coated C/C composite (RCC as abbreviated) as a candidate material for TPS have not been studied sufficiently on their mechanical protection performance. The hypervelocity impact characteristics of RCC at temperatures of 25°C to 1400°C were analysed and discussed in this paper. The experimental test programs were implemented with a converted light gas gun system and results were presented with various impact factors being considered. Furthermore, corresponding simulations were carried out and the morphologies of perforated holes from numerical results were consistent with those observed from tests results. Additionally, a semi-empirical and semi-analytical model was developed and successfully used for predicting the residual velocity and trajectory of the projectiles during the impact. Eventually, comparisons of the ballistic impact response predictions with the experimental results were presented and discussed. © 2019 International Committee on Composite Materials. All rights reserved.

关键词： Space shuttles

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Annual research review of perovskite solar cells in 2023

材料展望（英文）

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材料展望（英文） 2024年第2期3卷 161-213页

作者： Qisen Zhou Xiaoxuan Liu Zonghao Liu Yanqing Zhu Jianfeng Lu Ziming Chen Canjie Li Jing Wang Qifan Xue Feifei He Jia Liang Hongyu Li Shenghao Wang Qidong Tai Yiqiang Zhang Jiehua Liu Chuantian Zuo Liming Ding Zhenghong Xiong Renhao Zheng Huimin Zhang Pengjun Zhao Xi Jin Pengfei Wu Fei Zhang Yan Jiang Huanping Zhou Jinsong Hu Yang Wang Yanlin Song Yaohua Mai Baomin Xu Shengzhong Liu Liyuan Han Wei Chen Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyLuoyu Road 1037Wuhan 430074People's Republic of China Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyLuoyu Road 1037Wuhan 430074People's Republic of China Optics Valley Laboratory Hubei 430074People's Republic of China State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070People's Republic of China State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and DevicesSchool of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510640People's Republic of China School of Materials and Energy Guangdong University of TechnologyGuangzhou 510006People's Republic of China Department of Materials Science State Key Laboratory of Photovoltaic Science and TechnologyFudan University220 Handan RoadShanghai 200433People's Republic of China Materials Genome Institute Shanghai UniversityShangda Rd.99Shanghai 200444People's Republic of China The Institute of Technological Sciences Wuhan UniversityWuhan 430072People's Republic of China College of Chemistry Zhengzhou UniversityZhengzhou 450001People's Republic of China Future Energy Laboratory School of Materials Science and EngineeringHefei University of TechnologyHefei 230009People's Republic of China Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190People's Republic of China School of Chemical Engineering Center for Antibonding Regulated CrystalsSungkyunkwan UniversitySuwon 16419Republic of Korea State Key Laboratory of Functional Materials and Devices for Special Environmental Conditions Xinjiang Key Laboratory of Electronic Information Materials and Devices Xinjiang Technical Institute of Physics & ChemistryCAS40-1 South Beijing RoadUrumqi 830011People's Republic of China S

Perovskite(PVK)solar cells(PSCs)have garnered considerable research interest owing to their cost-effectiveness and high efficiency.A systematic annual review of the research on PSCs is essential for gaining a comprehensive understanding of the current research ***,systematic analysis of the research papers on PSCs reporting key findings in 2023 was *** on the results,the papers were categorized into six classifications,including regular n-i-p PSCs,inverted p-i-n PSCs,PVK-based tandem solar cells,PVK solar modules,device stability,and lead toxicity and green ***,a detailed overview and summary of the annual research advancements within each classification were ***,this review serves as a valuable resource for guiding future research endeavors in the field of PSCs.

关键词： perovskite solar cells annual review systematic review

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Multiscale failure analysis of 3d braided composite structure by coupling FEM and FFT method 22

Multiscale failure analysis of 3d braided composite structur...

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22nd International Conference on Composite Materials, ICCM 2019

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

The progressive damage behavior of three dimensional (3D) braided composite beam is studied by using a more efficient multiscale coupling method including fast Fourier transformation (FFT)-based method and finite element (FE) method. FFT-based method with variational principle is used to overcome the poor convergence for composites with large jumps of material properties in mesoscale. The mechanical response of the braided composites is studied using finite element (FE) method in the macro-scale. The predicted strength and dominated failure modes of the braided composites structure obtained by the proposed method are in good agreement with the experimental results. The high computation efficiency is attractive for large structure with the nonlinear mechanical behavior. © 2019 International Committee on Composite Materials. All rights reserved.

关键词： Fast Fourier transforms

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Mechanical behavior and deformation mechanisms of 3D woven preforms under shear loading based on experimental and numerical approaches

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Thin-Walled Structures 2025年 215卷

作者： Tiantian Yang Li Zhang Jia Hu Zhixing Li Chenyang Song Tao Zheng Shidong Pan Licheng Guo Department of Astronautic Science and Mechanics Harbin Institute of Technology Harbin 150001 China Institute of Composite Materials and Structures Harbin Institute of Technology Harbin 150001 China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin 150001 China

In-plane shear is a dominant factor among the multiple causes of deformations in three-dimensional woven preforms (3DWPs), playing a vital role in determining the yarn distribution and the quality of final composite. However, the deformation mechanisms remain ambiguous due to the inherent complexity of woven architectures. To investigate the underlying mechanisms of shear deformation in 3DWPs, this study employs multi-scale analysis approaches to investigate their deformation behavior. At the macro-scale, picture frame experiments are performed to obtain full-field strain distributions. At the meso-scale, deformation features are captured and analyzed using high-resolution optical microscopy. Further, a digital element model is established to explore intricate micro-scale yarn deformation phenomena. The experimental results and simulation predictions exhibit strong agreement, evidenced by aligned load-displacement curve trend. This trend, together with the simulation results, suggests that the shear deformation process can be categorized into four distinct stages based on yarn motion: friction, rotation, compression, and locking. Specifically, initial yarn friction causes stress concentrations and linear shear force growth (stage I), followed by a plateau region resulting from dynamic equilibrium between internal yarn stresses and static friction forces (stage II). Subsequent yarn rotation and compression elevate internal stresses, inducing a secondary increase in shear force (stage III). Ultimately, yarn locking leads to a sharp, nonlinear increase in shear force (stage IV). The validated digital element model effectively elucidates critical 3DWPs deformation mechanisms, such as yarn morphology evolution, local compression and twisting of warp and binder yarns, and inter-yarn slippage.

关键词： 3D woven preform Deformation mechanisms Digital element Picture frame test Shear properties

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Preparation of Transparent Conductive Microstructures on Curved Substrates Via Laser-Assisted Transfer technology

SSRN

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SSRN 2025年

作者： Sun, Chunqiang Wang, Zhuochao Gao, Gang Cao, Wenxin Song, Zicheng Wang, Shandong Yuan, Kang Zhang, Zhibo Yang, Lei Zhu, Jiaqi Zhengzhou Research Institute Harbin Institute of Technology Zhengzhou450000 China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin150080 China Key Laboratory of Micro-Systems and Micro-Structures Manufacturing Ministry of Education Harbin Institute of Technology Harbin150080 China

The continuous progress of science and technology requires highly integrated optoelectronic devices, prompting the development of its core component, transparent conductive materials, towards surface patterning but facing difficulties such as poor compatibility and performance balance of high-precision surface patterning processes, resulting in great challenges. To address these issues, we propose a novel method based on laser-assisted transfer technology. Through a synergistic strategy of low-energy laser-induced transfer and high-energy UV laser curing, combined with the design of an ultra-thin transparent conductive UV-curable adhesive layer, the process achieves a balance between surface aptitude and optoelectronic performance through non-contact processing. The technology utilizes UV adhesive to penetrate the conductive network instead of hybrid coating, effectively avoiding nanowire damage and ensuring the continuity of conductivity between the microstructure and the curved substrate, with both high transmittance (>80%@550 nm) and low resistivity ( © 2025, The Authors. All rights reserved.

关键词： Phototubes

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Correction: Effect of MXene content on the electromagnetic wave absorption performance of MXene-based composites

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Journal of Materials science 2024年第36期59卷 17293-17293页

作者： An, Boyuan Zhang, Dongjie Liu, Yuyan Fan, Zhimin Tan, Huifeng Xie, Zhimin National Key Laboratory of Science and Technology On Advanced Composites in Special Environments Center for Composite Materials and Structures Harbin Institute of Technology Harbin China MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin China

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Formation and mechanism of carbon coating on carbon fibers through glucose-to-carbon conversion and its effect on the mechanical properties of C f /ZrB 2 -SiC composites

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Journal of the European Ceramic Society 2025年第15期45卷

作者： Huiyi Fang Zonghao Sheng Wenxia Wang Chuncheng Wei Shuang Li Xin Geng Xiaowei Li Nannan Zhu Guangwu Wen Shun Dong Peng Wang School of Materials Science and Engineering Shandong University of Technology Zibo 255000 China School of Resources and Environmental Engineering Shandong University of Technology Zibo 255000 China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin 150001 China Science and Technology on Advanced Ceramic Fibers and Composites Laboratory National University of Defense Technology Changsha 410073 China Shandong Industrial Ceramics Research & Design institute Co. Ltd Zibo 255000 China

The protection for carbon fibers is crucial for carbon fiber-reinforced materials. Carbon coatings were prepared on carbon fibers through gelation, hydrothermal caramelization and pyrolysis, with glucose as precursor of carbon. The glucose-to-carbon conversion mechanism was explored, as well as the effect of high pressure in hydrothermal reactor and the catalytic role of KCl. The high pressure suppressed gas escape and was beneficial to the formation of dense carbon coating. The KCl promoted the generation of 5-HMF, thereby accelerated the glucose-to-caramel conversion. C f /ZrB 2 -SiC composites were prepared by introducing ZrB 2 -SiC slurry into the carbon fiber preform and hot press sintering. The carbon coating protected the carbon fibers from damage during sintering at high temperature. The carbon coating significantly improved the flexural strength, fracture toughness, and fracture work of C f /ZrB 2 -SiC composites from 122 MPa, 3.24 MPa‧m 1/2 , and 231.6 J/m 2 to 321 MPa, 5.87 MPa‧m 1/2 , and 567.1 J/m 2 , respectively.

关键词： Carbon coating Cf/ZrB2-SiC composites Glucose-to-carbon conversion Hydrothermal method Mechanical properties

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Space Layout of Low-entropy Hydration Shells Guides Protein Binding

arXiv

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arXiv 2022年

作者： Yang, Lin Guo, Shuai Hou, Chengyu Liao, Chencheng Li, Jiacheng Shi, Liping Ma, Xiaoliang Jiang, Shenda Zheng, Bing Fang, Yi Ye, Lin He, Xiaodong National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Center for Composite Materials and Structures Harbin Institute of Technology Harbin150080 China School of Aerospace Mechanical and Mechatronic Engineering University of Sydney NSW2006 Australia School of Electronics and Information Engineering Harbin Institute of Technology Harbin150080 China Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education School of Chemistry and Materials Science Heilongjiang University Harbin150001 China Mathematical Science Institute The Australian National University CanberraACT0200 Australia Shenzhen STRONG Advanced Materials Research Institute Co. Ltd Shenzhen518035 China

Protein-protein binding enables orderly and lawful biological self-organization, and is therefore considered a miracle of nature. Protein-protein binding is steered by electrostatic forces, hydrogen bonding, van der Waals force, and hydrophobic interactions. Among these physical forces, only the hydrophobic interactions can be considered as long-range intermolecular attractions between proteins in intracellular and extracellular fluid. Low-entropy regions of hydration shells around proteins drive hydrophobic attraction among them that essentially coordinate protein-protein docking in rotational-conformational space of mutual orientations at the guidance stage of the binding. Here, an innovative method was developed for identifying the low-entropy regions of hydration shells of given proteins, and we discovered that the largest low-entropy regions of hydration shells on proteins typically cover the binding sites. According to an analysis of determined protein complex structures, shape matching between the largest low-entropy hydration shell region of a protein and that of its partner at the binding sites is revealed as a regular pattern. Protein-protein binding is thus found to be mainly guided by hydrophobic collapse between the shape-matched low-entropy hydration shells that is verified by bioinformatics analyses of hundreds of structures of protein complexes. A simple algorithm is developed to precisely predict protein binding sites. © 2022, CC BY.

关键词： Hydrophobicity

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Stimuli-Responsive MXene/PNIPAM Hydrogel WITH High-Performance and Tunable Electromagnetic Interference Shielding Performance

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advanced science (Weinheim, Baden-Wurttemberg, Germany) 2025年 e05551页

作者： Qian Yan Zonglin Liu Jinhua Xiong Huanxin Lian He Chen Teng Fei Yunxiang Chen Haowen Zheng Xu Zhao Liangliang Xu Fuhua Xue Yesheng Zhong Xiaoliang Ma Liping Shi 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 Harbin 150080 P. R. China. Suzhou Research Institute of HIT Suzhou 215104 China.

Smart electromagnetic interference (EMI) shielding materials capable of reversible EMI response hold great promise for application in flexible electromagnetic devices. Here, PPM hydrogels composed of poly (N-isopropylacrylamide) (PNIPAM) and MXene/PEDOT: PSS hybrid fillers are fabricated via ice-templated freeze-in-situ polymerization. The anisotropic structural design of the hydrogel enhances its mechanical properties, conductivity, and EMI shielding properties in a specific direction. Furthermore, it can rapidly adjust its internal water content under thermal and light stimulation. The EMI shielding performance of PPM hydrogels can transition from an EMI shielding status (EMI shielding on, >50 dB) to an EM-wave-transparent status (EMI shielding off, ≈2 dB) in the X-band with the dynamic change in water content. Notably, the EMI SE value of PPM hydrogel in the X-band can be quantitatively adjusted from ≈59.3 to 15.5 dB, demonstrating excellent repeatability and adjustability. A real-time electrical switching capability in the broad GHz frequency range (8.2-40 GHz) is achieved through dual stimuli-responsive (temperature-responsive and light-responsive) modulation. This study presents a new model for dynamically switchable EMI shielding and reveals the great application potential of smart on/off switchable hydrogel-based EMI shielding materials as next-generation multifunctional electronics.

关键词： MXene‐based hydrogel electromagnetic interference shielding smart materials stimuli response

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Performance Enhancement of Transparent and Flexible Triboelectric Nanogenerator Based on One-Dimensionally Hybridized Copper/Polydimethylsiloxane Film

SSRN

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SSRN 2022年

作者： Li, Gui-Zhong Cai, Ya-Wei Wang, Gui-Gen Sun, Na Li, Fei Zhou, Hai-Ling Zhang, Xiao-Nan Zhao, Hai-Xu Wang, Yuanhao Han, Jie-Cai Yang, Ya Shenzhen518055 China CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-nano Energy and Sensor Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing101400 China SUSTech Engineering Innovation Center School of Environmental Science and Engineering Southern University of Science and Technology Guangdong Shenzhen518055 China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin150080 China School of Nanoscience and Technology University of Chinese Academy of Sciences Beijing100049 China College of Mechanical and Electrical Engineering Wenzhou University Wenzhou325035 China

Wearable/portable devices are essential for the automation, intelligence and digitization of next-generation electronic products. However, it is still challenging to obtain a kind of flexible, transparent and lightweight power source for these. Here, these were fabricated by cost-effective and feasible methods for both TENG with dual-electrode mode (tribo-negative layer: poly-(dimethylsiloxane)/copper nanowires (PDMS/Cu NWs), trio-positive layer: PET), and TENG with single-electrode mode based on half-embedded Cu NWs electrode and PDMS/Cu NWs negative friction layer s. Respectively, these as-obtained TENGs show good flexibilities and transparency. Meanwhile, the two kinds of TENG exhibit high output voltages and power densities of 120 V and 2.0 W/m2, 45 V and 0.135 W/m2, respectively. The enhancements are ascribed to the increase of capacitance and electron flow in the tribo-electric layers caused by doping Cu NWs. The advantages of the PDMS/Cu NWs based TENG include the ease of fabrication, good biocompatibility, flexibility and transparency, empowering it as a promising sustainable method for obtaining daily environmental energy as a self-powered source to drive wearable/portable electronic devices. © 2022, The Authors. All rights reserved.

关键词： Nanogenerators

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