检索结果-内蒙古大学图书馆

A universal approach to high-performance thermoelectric module design for power generation (vol 9, 101818, 2025)

JOULE 2025年第4期9卷

作者： Cheng, Jinxuan Xue, Wenhua Zhang, Tianyu Li, Xiaofang Zhu, Yichen Yin, Li Yao, Honghao Fu, Zixuan Wu, Longzhi Chen, Chen Zhao, Peng Ma, Xiaojing Jiang, Feng Wang, Xiaodong Li, Mingyu Mao, Jun Wang, Yumei Cao, Feng Zhang, Qian School of Materials Science and Engineering and Institute of Materials Genome & Big Data Harbin Institute of Technology Shenzhen 518055 China Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Science Beijing 100190 China School of Science Harbin Institute of Technology Shenzhen 518055 China Sauvage Laboratory for Smart Materials School of Materials Science and Engineering Harbin Institute of Technology Shenzhen 518055 China State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 China School of Physical Sciences Great Bay University Dongguan 523000 China Institute of Special Environments Physical Sciences Harbin Institute of Technology Shenzhen 518055 China Beijing Branch of Songshan Lake Materials Laboratory Dongguan 523808 China

Thermoelectric modules fabricated by traditional welding fall short of achieving optimal conversion efficiencies, primarily due to performance degradation of materials at high temperatures, severe elemental diffusion, and residual thermal stress at the interface. Transient liquid phase bonding enables the realization of joints with high-melting-point compounds at low bonding temperatures, providing a promising solution for achieving "low-temperature bonding and high-temperature service." Owing to the low eutectic point of the solder and high melting points of compounds, we optimize the design of a germanium-telluride-based module at 533 K, which is successfully applied at the hot-side temperature of 773 K. Attributed to high-performance materials and reliable joints, the module realizes a high conversion efficiency of ∼15.1% and remains stable throughout 150 h of service. By adopting the same approach, the low- (Bi2Te3) and high-temperature (half-Heusler) modules are assembled. We provide a promising and general route for the assembly of full-temperature-range thermoelectric devices.

关键词： transient liquid phase bonding thermoelectric module intermetallic compounds GeTe

来源：评论

学校读者我要写书评

暂无评论

In-Situ Assembly of Polypyrrole Onto Heterocyclic Aramid for High-Strength, Ultratough, Durable, and Multifunctional Films

SSRN

引用

SSRN 2024年

作者： Xiong, Jinhua Zhao, Xu Li, Pengyang Lian, Huanxin Yan, Qian Chen, He Liu, Zonglin Chen, Zhong Peng, Qingyu 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

High-strength, ultratough, multifunctional polymer-based electromagnetic interference (EMI) shielding nanocomposite films have colossal application potential in artificial intelligence, 5G communications, and flexible electronics. In this work, a large-scale, high-strength, and ultratough heterocyclic aramid@polypyrrole (HA@PPy) composite film is developed via the in-situ loading of PPy onto the HA template. The synthesized films achieve remarkable mechanical properties and high electronic conductivity by using the template effect of HA to guide the assembly of conductive polymers. When the content of PPy is 45 wt.%, the HA@PPy (HP45) film possesses excellent tensile strength (240.3 MPa), significant elongation at break (25.9%), outstanding toughness (53.1 MJ m-3), and exceptional folding durability owing to strong hydrogen bond interaction between PPy and HA. Furthermore, thanks to the highly connected conductive paths formed by PPy, the HP45 film exhibits satisfactory EMI shielding effectiveness (EMI SE) of 45.5 dB and specific EMI SE of 14691.6 dB cm2 g-1 at an ultra-thin thickness (26.3 μm). The HP45 film also demonstrates excellent electromagnetic protection, electro-/photothermal deicing, thermal therapy, and flame retardancy applications. Therefore, high-performance and multifunctional HA@PPy films have substantial potential for widespread application in EMI shielding and thermal management. © 2024, The Authors. All rights reserved.

关键词： Nanocomposite films

来源：评论

学校读者我要写书评

暂无评论

X-ray stress measurement of SiC single-crystal induced by laser ablation 8

X-ray stress measurement of SiC single-crystal induced by la...

引用

8th Symposium on Novel Photoelectronic Detection technology and Applications

作者： Deng, Ya Zhou, Yufeng Zhang, Yumin National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin150080 China Center for Composite Materials and Structures Harbin Institute of Technology Harbin150080 China

ISBN: (数字)9781510653122

ISBN: (纸本)9781510653115

The residual stress distribution induced by nanosecond UV laser irradiation on the surface of SiC single crystal was detected through X-ray stress measurement method in this manuscript. In order to explain the generation mechanism of the residual stresses, the surface morphology of the laser ablation zone was characterized by laser scanning confocal microscopy. Besides, the material compositions of the ablation zone were also observed by using energy dispersive X-ray spectrometer. The measurement results indicated that tensile stress distribution existed around the laser-irradiated zone, while the center position of the laser spot had the smaller residual stresses. There were obvious bulges at the ablation zone margin, which may be caused by the melting of the material and the splashing and re-solidification of molten material in the ablation hole. In addition, there exists oxidation phenomenon in the irradiated region by comparing the EDS results of laser irradiated and unirradiated regions. This suggested that the temperature reached its melting point and photothermal ablation occurred when laser irradiated on the surface of the silicon carbide specimen. Therefore, it can be concluded that the existence of residual stresses was related to the local thermal expansion caused by laser irradiation. And the residual stresses at the marginal zone had the larger tensile stresses because of the transverse extrusion effect. © 2022 SPIE

关键词： Silicon carbide

来源：评论

学校读者我要写书评

暂无评论

Rubik’s cube as in-situ programmable matter and a reconfigurable mechanical metamaterial

引用

science China(Technological sciences) 2024年第10期67卷 3221-3234页

作者： ZHU ShaoWei CHEN Huan YANG XiaoQiang TAN Li JIN Shuai CHEN LiMing LIU Tao TAN XiaoJun WANG LianChao WANG Bing MUAMER Kadic State Key Laboratory of Coal Mine Disaster Dynamics and Control Chongqing UniversityChongqing 400030China College of Aerospace Engineering Chongqing UniversityChongqing 400030China School of Civil Aviation Northwestern Polytechnical UniversityXi’an 710129China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150080China Institut FEMTO-ST CNRS UMR 6174University BourgogneFranche-ComtBesan¸con 25000France

As part of the 4th industrial revolution,programmable mechanical metamaterials exhibit great application potential in flexible robotics,vibration control,and impact ***,maintaining a programmed state without sustaining the external stimulus is often challenging and leads to additional energy *** by Rubik’s cube,we design and study an in-situ programmable and distribution-reconfigurable mechanical metamaterial(IPDR-MM).A matrix model is developed to model IPDR-MMs and describe their morphological *** on this model,the reinforcement learning method is employed to find the pathways for morphological *** find that IPDR-MMs have controllable stiffness across several orders of magnitude and a wide range of adjustable anisotropies through morphology ***,because of the independence of the directions of morphology transformation and bearing,IPDR-MMs exhibit good stability in bearing and can readily achieve high *** Rubik’s cube-inspired design concept is also instructive for other deformable structures and metamaterials,and the current version of the proposal should be sufficiently illustrative to attract and broaden interdisciplinary interests.

关键词： mechanical metamaterials in-situ programmable distribution-reconfigurable Rubik’s cube controllable stiffness and anisotropy

来源：评论

学校读者我要写书评

暂无评论

A reconfigurable dynamic Bayesian network for digital twin modeling of structures with multiple damage modes

引用

Theoretical & Applied Mechanics Letters 2023年第4期13卷 251-260页

作者： Yumei Ye Qiang Yang Jingang Zhang Songhe Meng Jun Wang Xia Tang School of Mechanical Technology Wuxi Institute of TechnologyWuxi 214121China National Key Laboratory of Science and Technology for National Defence on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150001China Beijing Institute of Astronautical Systems Engineering Beijing 100076China

Dynamic Bayesian networks(DBNs)are commonly employed for structural digital twin *** present,most researches only consider single damage mode *** is not sufficient for a reusable spacecraft as various damage modes may occur during its service life.A reconfigurable DBN method is proposed in this *** structure of the DBN can be updated dynamically to describe the interactions between different *** common damages(fatigue and bolt loosening)for a spacecraft structure are considered in a numerical *** results show that the reconfigurable DBN can accurately predict the acceleration phenomenon of crack growth caused by bolt loosening while the DBN with time-invariant structure cannot,even with enough *** definition of interaction coefficients makes the reconfigurable DBN easy to track multiple damages and be extended to more complex *** method also has a good physical interpretability as the reconfiguration of DBN corresponds to a specific *** predictions do not require precise knowledge of reconfiguration conditions,making the method more practical.

关键词： Dynamic Bayesian network Reusable spacecraft Damage Reconfiguration

来源：评论

学校读者我要写书评

暂无评论

Polybenzimidazole functionalized electrolyte with Li-wetting and self-fluorination functionalities for practical Li metal batteries

引用

InfoMat 2022年第5期4卷 174-186页

作者： Dongjiang Chen Yuanpeng Liu Chuan Xia Yupei Han Qingwei Sun Xuchang Wang Wei Chen Xian Jian Weiqiang Lv Jianyi Ma Weidong He National Key Laboratory of Science and Technology on Advanced Composites in Special Environments and Center for Composite Materials and StructuresHarbin Institute of TechnologyHarbinChina School of Physics University of Electronic Science and Technology of ChinaChengduChina School of Materials and Energy University of Electronic Science and Technology of ChinaChengduChina Institute of Atomic and Molecular Physics Sichuan UniversityChengduSichuanChina

Rough Li plating,low ionic conductivity,and low thermal stability of conventional electrolytes post-primary challenges for achieving reliable high-capacity rechargeable lithium batteries,for which lithiummetal is frequently proposed as themost promising anode *** low-polarity commercial polypropylene/polyethylene separators fail to support the application of high-energy-density Li anodes due to their rigid physicochemical properties and the high reactivity of Li metal,leading to fatal dendrite formation and vigorous exothermic reaction with ***,we develop a Li-wetting,flame-retardant binary polymer electrolyte by functionalizing poly(vinylidene fluoride)(PVDF)separators with nonflammable polybenzimidazole(PBI)to build safe room-temperature solid-state electrolyte membranes.A dendrite-free LiFePO4 cell with the solid polymer electrolyte(SPE)delivers a discharge capacity of 127 mAh g^(-1) at 25℃ with a capacity retention of 87.5%after 500 cycles at 0.5℃(0.15 mA cm^(-2)).Phase-field simulations and density functional theory calculations demonstrate that the negatively charged benzimidazole chains of PBI own superior affinity to lithium bis(trifluoromethanesulfonyl)imide(LiTFSI),and shares overlapping electron density with Li anode,giving rise to accelerated Li^(+)conduction at room temperature and uniform Li electrodeposition at the electrolyte/Li metal *** SPE is also flame-retardant since heat-resistant polytetrafluoroethylene and a dense,heat-blocking graphitized carbon layer are formed in intense heat throughdehydrogenation/fluorination of PVDF under the catalysis of Lewis base imidazole rings and the decomposition of benzimidazole rings in *** such fire-resistant mechanism is ever reported in conventional electrolytes.

关键词： flame-retardant properties Li metal polybenzimidazole solid polymer electrolyte uniform Li deposition

来源：评论

学校读者我要写书评

暂无评论

An extended Euler-Bernoulli beam principle in multi-component metamaterial towards tunable Poisson's ratio

引用

Extreme Mechanics Letters 2025年 77卷

作者： Zhang, Jingyi Liu, Yuheng Lu, Haibao Tao, Ran Science and Technology on Advanced Composites in Special Environments Laboratory Harbin Institute of Technology Harbin150080 China Institute of Advanced Structure Technology Beijing Institute of Technology Beijing100081 China

In this paper, a multi-component mechanical metamaterial was proposed to achieve tunable nominal modulus and Poisson's ratio to extend the potential and practical applications in smart materials and structures. Based on the Euler-Bernoulli beam theory, a universal model was formulated for the multi-component metamaterial to explore the constitutive relationship between the model parameters and mechanical properties. The theoretical model reveals that the Poisson's ratio of the multi-component metamaterial could be quantitatively regulated over a broad range by manipulating the moduli of its constituent components. On this basis, a bi-component metamaterial composed of polylactic acid (PLA) and thermoplastic polyurethane (TPU), featuring distinct temperature-dependent moduli and geometric configurations, was manufactured and exhibited thermally tunable mechanical behavior. Parametric finite element simulations were conducted to investigate the synergistic effect of temperature-dependent moduli and geometric parameters on the stable mechanical behaviors of the bi-component metamaterial, with the results validated by experimental measurements. This study examines the design principle that combines material parameters (temperature-dependent moduli) and structural parameters (geometric parameters) for the multi-component mechanical metamaterial. The methodologies and insights presented in this paper provide new perspectives and technical approaches for the innovative applications of metamaterials in aerospace, biomedical, and microelectronic fields. © 2025 Elsevier Ltd

关键词： Metamaterials

来源：评论

学校读者我要写书评

暂无评论

Surface reconstruction of Se-doped NiS_(2) enables high-efficiency oxygen evolution reaction

引用

Journal of Energy Chemistry 2023年第9期84卷 173-180页

作者： Mengxin Chen Yuanyuan Zhang Ran Wang Bin Zhang Bo Song Yanchao Guan Siwei Li Ping Xu MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150001HeilongjiangChina Key Laboratory of Micro-systems and Micro-structures Manufacturing Ministry of EducationHarbin Institute of TechnologyHarbin 150001HeilongjiangChina Institute of Industrial Catalysis School of Chemical Engineering and TechnologyXi’an Jiaotong UniversityXi’an 710049ShaanxiChina

Surface reconstruction of electrocatalysts has been widely witnessed during the electrochemical ***,NiS_(2),NiSe_(2), and Se doped NiS_(2)(Se-NiS_(2)) are fabricated for oxygen evolution reaction(OER) through a mild sulfuration and/or selenylation process of Ni(OH)_(2) supported on carbon cloth(CC).Through careful in-situ Raman spectroscopy and ex-situ X-ray photoelectron spectroscopy,surface reconstruction of NiS_(2),NiSe_(2),and Se-NiS_(2) during the OER process has been revealed.A potentialdependent study shows that Se-NiS_(2) undergoes surface evolution at lower potentials and requires the lowest potential for conversion to NiOOH as a highly OER-active species,accompanied by the leaching of SO_(4)^(2-) and SeO_(4)^(2-) that can again be adsorbed on the catalyst surface to enhance the catalytic *** functional theory(DFT) calculations confirm that Se-NiS_(2) is more susceptible to surface oxidation through the OER ***,Se-NiS_(2) exhibits outstanding OER activity and stability in alkaline conditions,requiring an overpotential of 343 mV at a current density of 50 mA cm^(-2).A novel insight is provided by our work in understanding the surface reconstruction and electrocatalytic mechanism of Ni-based chalcogenides.

关键词： Oxygen evolution reaction Se-NiS_(2) In-situ Raman spectroscopy Anion leaching Surface reconstruction

来源：评论

学校读者我要写书评

暂无评论

Selective thermal emission and infrared camouflage based on layered media

引用

Chinese Journal of Aeronautics 2023年第3期36卷 212-219页

作者： Qingxiang JI Xueyan CHEN Vincent LAUDE Jun LIANG Guodong FANG Changguo WANG Rasoul ALAEE Muamer KADIC National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150001China Institute FEMTO-ST CNRSUniversity Bourgogne Franche-Comte´Besanc¸on 25000France Institute of Advanced Structure Technology Beijing Institute of TechnologyBeijing 100081China Department of Physics University of OttawaOttawaK1N 6N5Canada Institute of Theoretical Solid State Physics Karlsruhe Institute of TechnologyKarlsruhe D-76131Germany

Infrared camouflage based on artificial thermal metasurfaces has recently attracted significant *** eliminating thermal radiation differences between the object and the background,it is possible to hide a given object from infrared *** camouflage is an important element that increases the survivability of aircraft and missiles,by reducing target susceptibility to infrared guided ***,a simple and practicable design is theoretically presented based on a multilayer film for infrared stealth,with distinctive advantages of scalability,flexible fabrication,and structural *** multilayer medium consists of silicon substrate,carbon layer and zinc sulfide film,the optical properties of which are determined by transfer matrix *** locally changing the thickness of the coating film,the spatial tunability and continuity in thermal emission are demonstrated.A continuous change of emissive power is further obtained and consequently implemented to achieve thermal camouflage *** addition,other functionalities,like thermal illusion and thermal coding,are demonstrated by thickness-engineered multilayer films.

关键词： Heat transfer manipulation Infrared camouflage Multilayer media Selective thermal emission Thermal illusion Transfer matrix method

来源：评论

学校读者我要写书评

暂无评论

Nanodiamond:a promising metal-free nanoscale material in photocatalysis and electrocatalysis

引用

Rare Metals 2024年第8期43卷 3501-3552页

作者： Xiao-Wu Gao Zi-Wei Zhao Yang He Sai-Fei Fan Ke-Ran Jiao Si-Yu Lou Xin-Yue Han Peng-Fei Song Rong Cai Zhun Hu Zhong-Jie Jiang Yong-Jie Wang Jia-Qi Zhu Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic Systems School of ScienceHarbin Institute of TechnologyShenzhen 518055China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150080China School of Advanced Technology Xi'an Jiaotong-Liverpool UniversitySuzhou215000China Department of Biosciences Rice UniversityHoustonTX 77251USA Institute of Industrial Catalysis School of Chemical Engineering and TechnologyXi'an Jiaotong UniversityXi'an 710049China Guangzhou Key Laboratory for Surface Chemistry of Energy Materials New Energy Research Institute&Guangdong Engineering and Technology Research Center for Surface Chemistry of Energy MaterialsCollege of Environment and EnergySouth China University of TechnologyGuangzhou 510006China

Benefiting from its surface-rich functional groups,eco-friendliness,impressive electrochemical properties,excellent light absorption,structural tunability at the atomic/morphological level,and ultra-high stability under harsh conditions,nanodiamond has emerged as a promising carbon-based non-metallic material in the field of energy conversion such as electrocatalysis and ***,nanodiamond,as a new generation of green catalysts,can overcome the poisoning of catalysts by complex pollutants in advanced oxidation processes,thus effectively removing organic matter from water,which is unparalleled in reducing the cost of water purification and avoiding secondary cross-contamination of water by traditional heavy metal-based ***,we review the research and development of nanodiamonds as major electrocatalysts and photocatalysts for energy conversion and for air/water treatment for environmental *** relevant properties,trimming strategy,mechanistic understanding,and design principles of nanodiamond as a catalyst are described,as well as the challenges and prospects of this emerging field.

关键词： Carbon materials Nanodiamond Electrocatalysis Photocatalysis Energy conversion Pollutant treatment

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：