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22nd International Conference on Composite Materials, ICCM 2019

作者： Han, Wenbo Zhou, Changling Wang, Chonghai Zhang, Yumin Zhang, Huayu Wang, Zhuju National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin China Shandong Industrial Ceramic Research and Design Institute Co. Ltd. Zibo China Shenzhen China

To overcome the poor oxidation resistance of C/C composites, anti-oxidation SiC and ZrB2-SiC ceramics were introduced into C/C composites by chemical vapor infiltration (CVI) and precursor infiltration-pyrolysis (PIP). The microstructure, mechanical properties and oxidation resistance of C/C-SiC-ZrB2 composites were investigated. The ZrB2-SiC ceramic exhibits uniform dispersion and distribution in C/C composite. The C/C-SiC-ZrB2 composites pyrolyzed at 1500°C has the highest flexural strength (315 MPa) and fracture toughness (10.87 MPam1/2). The flexural strength, tensile strength and compressive strength increased with temperature. The C/C-SiC-ZrB2 composites exhibited low ablation characteristics in plasma ablation experiments, and the linear ablation rate was 3.67×10-3 mm/s. The composite material, which exhibited synergistic effect between toughening and oxidation resistance, has potential application in the field of hypersonic vehicle. © 2019 International Committee on Composite Materials. All rights reserved.

关键词： Microstructure

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First-principles calculations on the optical physical properties of intrinsic and transition metal Mn, Fe doped point defects in hexagonal CsCdCl 3

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Materials Research Bulletin 2025年 192卷

作者： Qilin Wei Tongtong Kou Shuaigang Ge Liang Wang Ruosheng Zeng Zhenhong Dai Tong Chang Bingsuo Zou William W. Yu School of Chemistry and Chemical Engineering Ministry of Education Key Laboratory of Special Functional Aggregated Materials Shandong Key Laboratory of Advanced Organosilicon Materials and Technologies Shandong University Jinan 250100 China State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures School of Physical Science and Technology MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials and School of Resources Environment and Materials Guangxi University Nanning 530004 China School of Integrated Circuits Shandong University Jinan 250100 China Department of Physics Yantai University Yantai 264005 China

The ultra-wide bandgap CsCdCl 3 is widely used in experimental research in optoelectronics because of its superior doping matrix properties, but its photoelectric mechanisms remain inadequately explored. This study employs first-principles calculations to analyze the thermodynamics of crystal growth and electronic states associated with point defects induced by transition metal doping. Cs vacancies enhance n-type conductivity, while Cl vacancies reduce carrier lifetimes via recombination. Mn-Mn and Fe-Fe doping surpass single-ion doping, inducing magnetic coupling and polaronic excitons. For Mn-Mn pairs, ferromagnetic (FM) and antiferromagnetic (AFM) couplings stabilize high-spin states and radiative transitions, though AFM is rare. Fe-Fe pairs under FM coupling interact via d z 2 orbitals, enabling partial radiative transitions, while AFM-coupling introduces Fermi-level-crossing d states that quench radiation. Both cases align with experiments, demonstrating FM-enhanced photoluminescence via magnetic dipole effects. These findings advance the design of intrinsic and transition metal-doped CsCdCl 3 defects for optoelectronics, emphasizing spin-orbital interactions in tailoring radiative properties.

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Optimal isotropic, reusable truss lattice material with near-zero Poisson’s ratio

arXiv

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arXiv 2020年

作者： Chen, Xueyan Moughames, Johnny Ji, Qingxiang Martínez, Julio Andrés Iglesias Tan, Huifeng Adrar, Samia Laforge, Nicolas Cote, Jean-Marc Euphrasie, Sébastien Ulliac, Gwenn Kadic, Muamer Laude, Vincent National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology 92 Xidazhi Street Harbin150001 China Institut FEMTO-ST CNRS Université Bourgogne Franche-Comté Besançon25000 France

Cork is a natural amorphous material with near-zero Poisson’s ratio that is ubiquitously used for sealing glass bottles. It is an anisotropic, transversally isotropic, composite that can hardly be scaled down. Here, we propose a new class of isotropic and reusable cork-like metamaterial that is designed from an hybrid truss-lattice material to show an isotropic Poisson’s ratio close to zero. Optimization is conducted using a multi-objective genetic algorithm, assisted by an elliptical basis function neural network, and coupled with finite element simulations. The optimal micro-structured metamaterial, fabricated by two-photon lithography with a lattice constant of 300 µm, has an almost isotropic Poisson’s ratio smaller than 0.08 in all directions. It can recover 96.6% of its original shape after a compressional test exceeding 20% strain. Copyright © 2020, The Authors. All rights reserved.

关键词： Metamaterials

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Fractal characterization of the oxidation structure in ZrB2-SiC composite after thermal shocks 2

Fractal characterization of the oxidation structure in ZrB2-...

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2nd International Conference on Modeling in Mechanics and Materials

作者： Qi, F. Meng, S.H. Wu, P. Guo, H. Zhao, D. Chen, T. School of Mechanical and Electric Engineering and Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University Suzhou215021 China Science and Technology on Advanced Composites in Special Environment Laboratory Harbin Institute of Technology Harbin150080 China Artificial Organ Laboratory Bio-manufacturing Research Centre School of Mechanical and Electric Engineering Soochow University Suzhou215021 China Jiangsu Provincial Key Laboratory of Advanced Robotics Robotics and Microsystems Center Soochow University Suzhou215021 China

The effect of the oxidation structure on the residual strength of ZrB2-SiC composite after repeated thermal shocks was investigated. The silica-rich glasses on the oxidation surface and pores in the oxidation layer were characterized using the fractal geometry method. Their fractal dimensions were calculated by Box-counting method. The increase of silica-rich glasses and the decrease of pores contributed to the increase of the residual strength of ZrB2-SiC after thermal shocks. © Published under licence by IOP Publishing Ltd.

关键词： Thermal shock

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Breaking low-strain and rapid-kinetics trade-off in heterostructured prussian blue cathode toward robust sodium storage

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Journal of colloid and interface science 2025年 698卷 138106页

作者： Shaoxiong Li Dongping Chen Shengji Tian Chu Zhang Weidong He Chade Lv Chunshuang Yan MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage State Key Laboratory of Space Power-Sources School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China. National Key Laboratory of Science and Technology on Advanced Composites in Special Environments and Center for Composite Materials and Structures Harbin Institute of Technology Harbin 150080 China Chongqing Research Institute Harbin Institute of Technology Chongqing 401151 China School of Mechanical Engineering Chengdu University Chengdu 610106 China. Electronic address: weidong.he@***. MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage State Key Laboratory of Space Power-Sources School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China. Electronic address: lv.chade@***. MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage State Key Laboratory of Space Power-Sources School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China. Electronic address: csyan@***.

Manganese-based hexacyanoferrate has garnered unprecedented attention for sodium-ion batteries due to their high theoretical capacity. However, the structural strain associated with Jahn-Teller distortion incurs fast capacity decline and poor rate capability. Effectively reconciling the trade-off between low-strain and rapid-kinetics in manganese-based hexacyanoferrate cathode poses a considerable challenge. Herein, an elegant strategy based on the stress engineering of heterointerface on nickle-doped manganese hexacyanoferrate@nickle hexacyanoferrate core@shell cathode is proposed to balance the volume strain and charge transfer kinetics during charge/discharge process. As evidenced by the operando X-ray diffraction experiments, differential electrochemical mass spectrometry, and theoretical calculations, the interfacial stress can be regulated by precisely tailoring the shell thickness to stabilize the built-in electric field, which ensures the good structural stability and fast charge diffusion kinetics. Consequently, the as-developed cathode delivers a reversible capacity of 81.0 mAh g, excellent cycling stability (81.9 % of capacity retention after 800 cycles), and superior rate performance (55.1 mAh g at 10 C). Our work heralds a promising strategy of heterointerface strain engineering for exploring advanced MnHCFs cathode materials toward high-performance sodium storage.

关键词： Heterostructured cathode Manganese based hexacyanoferrate Sodium-ion batteries Strain engineering Structural stability

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Unsteady Coupled Heat Transfer Simulation of Unsteady numerical simulation of slot flow in anti-heating tile

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IOP Conference Series: Earth and environmental science 2021年第2期651卷

作者： Qiang Wang Wei Li Yongtao Yao School of Energy and Power North University of China Taiyuan China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin China

An unsteady coupled heat transfer solver is developed in the study. The coupled solver, solving the partial differential equations for fluid flow and thermal conduction in the solid, is employed to predict the unsteady heat and transfer in the anti-heating tile. The influence of gap depth on the fluid flow and solid thermal conduction is studied. The results show that the flow field distribution between the different gap depths is similar, otherwise reducing the gap depth is conducive to reducing the thermal load in the bottom plate.

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Study on the compatibility of modified cyanate ester resin in liquid oxygen

SPE Polymers

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SPE Polymers 2020年第1期1卷 45-54页

作者： Fu, Gang Jiao, Weicheng Wang, Guan Gao, Tanling Wu, Jianwei Shao, Nan Wei, Yun Zhao Kuang, Hong He, Xiaodong Wang, Rongguo Institute of Petrochemistry Heilongjiang Academy of Sciences Heilongjiang Harbin China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Heilongjiang Harbin China Institute of Advanced Marine Materials Key Laboratory of Superlight Materials & Surface Technology Ministry of Education College of Materials Science and Chemical Engineering Harbin Engineering University Heilongjiang Harbin China

A cyanate ester (CE) resin co-modified with epoxy (EP) and bismaleimide (BMI) as the continuous phase, and phenolphthalein poly (ether sulfone) (PES-C) as the dispersed phase were used for developing liquid oxygen (LOX) composite tanks. Gaseous oxygen (GOX) anti-oxidation, LOX impact sensitivity, ductility, and cycle durability is a critical index for materials in LOX applications. Added components significantly improved material ductility at low temperature versus neat CE resin because of microstructure changes. However, improvement in thermal resistance was not achieved without tradeoffs;the addition of BMI improved thermal resistance but decreased durability. The failure mechanism of a tank containing GOX was related to reaction with oxygen. LOX impact sensitivity (IRS) is associated with anti-oxidation and flaming retardance of the samples. Micro-domains tended to separate from the continuous phase more during the LOX impact test versus the GOX test and was accompanied by increasing ductility and anti-oxidation. Cycle durability was affected more by the difference in coefficient of thermal expansion between the continuous and PES-C phases rather than immersion time. In summary, CE resin (CYEP6BM5) co-modified with PES-C, EP, and BMI showed good LOX compatibility including IRS value of 2%, 19 cycles durability, and flaming retardance of UL94V0 and may be applied for LOX composite tanks. © 2020 The Authors. SPE Polymers published by Wiley Periodicals LLC on behalf of Society of Plastics Engineers.

关键词： anti-oxidation cyanate ester low temperature cycles LOX compatibility toughening

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Improving the propulsion performance of composite propellers under off-design conditions

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Applied Ocean Research 2020年 100卷

作者： Xuting Zhang Yi Hong Wenbo Liu Fan Yang Rongguo Wang Science and Technology on Advanced Composites in Special Environment Laboratory Harbin Institute of Technology Harbin 150080 PR China

Pre-deformation design can improve the propulsive efficiency of composite ship propellers under off-design conditions, where propulsive efficiency is related to the geometry of the propeller blade. Material attributes affect the deformation of composite propeller blades, suggesting that these also affect the propulsive efficiency of a pre-deformed composite propeller (PDCP) under off-design conditions. In this study, the hydrodynamic performance and structural response of composite propellers were determined and verified using computational fluid dynamics and the finite element method. The effects of elastic and shear moduli on propulsive efficiency and structural deformation were analyzed, and the influences of changing material attributes and propeller advance ratios were compared. Based on existing propeller theories, an objective function was proposed for selecting the most suitable material attribute scheme for the DTNSRDC 4383 propeller, from 18 different materials. Such a selection allows for an optimization of the comprehensive propulsive efficiency of a composite propeller through pre-deformation design. The results show that when the PDCP has an elastic modulus E = 135 GPa and a shear modulus G = 2.07 GPa, it exhibits optimal comprehensive propulsive efficiency. The findings of this study can be used in the design of composite propellers to maximize performance under a broad range of working conditions.

关键词： Composite propeller Finite element analysis Material property Pre-deformation

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Publisher Correction: Compact angle-resolved metasurface spectrometer

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Nature materials 2025年第4期24卷 650页

作者： Guiyi Cai Yanhao Li Yao Zhang Xiong Jiang Yimu Chen Geyang Qu Xudong Zhang Shumin Xiao Jiecai Han Shaohua Yu Yuri Kivshar Qinghai Song Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic Systems Harbin Institute of Technology Shenzhen People's Republic of China. Pengcheng Laboratory Shenzhen People's Republic of China. Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic Systems Harbin Institute of Technology Shenzhen People's Republic of China. shumin.xiao@***. Pengcheng Laboratory Shenzhen People's Republic of China. shumin.xiao@***. National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin People's Republic of China. shumin.xiao@***. National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin People's Republic of China. Pengcheng Laboratory Shenzhen People's Republic of China. yush@***. Nonlinear Physics Center Research School of Physics Australian National University Canberra Australian Capital Territory Australia. yuri.kivshar@anu.edu.au. Qingdao Innovation and Development Center Harbin Engineering University Qingdao People's Republic of China. yuri.kivshar@anu.edu.au. Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic Systems Harbin Institute of Technology Shenzhen People's Republic of China. qinghai.song@***. Pengcheng Laboratory Shenzhen People's Republic of China. qinghai.song@***. Collaborative Innovation Center of Extreme Optics Shanxi University Taiyuan People's Republic of China. qinghai.song@***.

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Bifunctional WC-Supported RuO2Nanoparticles for Robust Water Splitting in Acidic Media

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Angewandte Chemie 2022年第21期134卷

作者： Shu-Chao Sun Hao Jiang Zi-Yao Chen Dr. Qing Chen Ming-Yuan Ma Prof. Liang Zhen Prof. Bo Song Prof. Cheng-Yan Xu School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 P. R. China MOE Key Laboratory of Micro-Systems and Micro-Structures Manufacturing Harbin Institute of Technology Harbin 150080 P. R. China Sauvage Laboratory for Smart Materials School of Materials Science and Engineering Harbin Institute of Technology (Shenzhen) Shenzhen 518055 P. R. China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin 150001 P. R. China

We report the strong catalyst–support interaction in WC-supported RuO 2 nanoparticles (RuO 2 -WC NPs) anchored on carbon nanosheets with low loading of Ru (4.11 wt.%), which significantly promotes the oxygen evolution reaction activity with a η 10 of 347 mV and a mass activity of 1430 A g Ru −1 , eight-fold higher than that of commercial RuO 2 (176 A g Ru −1 ). Theoretical calculations demonstrate that the strong catalyst–support interaction between RuO 2 and the WC support could optimize the surrounding electronic structure of Ru sites to reduce the reaction barrier. Considering the likewise excellent catalytic ability for hydrogen production, an acidic overall water splitting (OWS) electrolyzer with a good stability constructed by bifunctional RuO 2 -WC NPs only requires a cell voltage of 1.66 V to afford 10 mA cm −2 . The unique 0D/2D nanoarchitectures rationally combining a WC support with precious metal oxides provides a promising strategy to tradeoff the high catalytic activity and low cost for acidic OWS applications.

关键词： Acidic Water Splitting Bifunctional Electrocatalysts Supported Electrocatalysts Transition Metal Carbide

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