Composites Communications最新文献_第9页

A metasurface capable of simultaneous stealth across multiple electromagnetic wave bands and its design concept

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-02-26 DOI: 10.1016/j.coco.2025.102328

Jiaqi Geng , Xin-Hua Deng , Zhipeng Xiong , Jiapeng Gao , Binbin Song , Yaokun Lou

{"title":"A metasurface capable of simultaneous stealth across multiple electromagnetic wave bands and its design concept","authors":"Jiaqi Geng , Xin-Hua Deng , Zhipeng Xiong , Jiapeng Gao , Binbin Song , Yaokun Lou","doi":"10.1016/j.coco.2025.102328","DOIUrl":"10.1016/j.coco.2025.102328","url":null,"abstract":"<div><div>The investigation of metasurfaces presents an innovative method for attaining multi-band electromagnetic wave concealment. Presently, there exist two primary categories of multi-band stealth metasurfaces: those suitable for infrared and microwave frequencies and those appropriate for terahertz and microwave frequencies. Nonetheless, investigations into metasurfaces that concurrently offer stealth across the infrared, microwave, and terahertz spectra remain insufficient. This article presents a stealth metasurface suitable for infrared, microwave, and terahertz frequencies. The compatible stealth metasurface (CSM) may attain over 90 % cross-band absorption throughout the frequency ranges of 17.1 GHz–20.8 GHz and 2.04 THz-2.89 THz while exhibiting a low infrared emissivity (IE) of 0.46. This CSM uses the gradient principle to make absorption units of different sizes on its surface. To achieve cross-band absorption, it also uses a frequency-selective surface (FSS) as the reflecting layer, which is a first. Furthermore, the CSM's exterior is coated with low-IE materials, facilitating infrared stealth capabilities. The CSM's stealth properties across three electromagnetic wave bands make it very useful for military purposes, and the new way that FSS is used as a reflecting layer opens up a whole new way to make stealth metasurfaces that work with each other.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"55 ","pages":"Article 102328"},"PeriodicalIF":6.5,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simultaneous enhancement of strength and toughness of polybutylene terephthalate composites via oriented shish-kebab crystals induced by oriented polytetrafluoroethylene nanofibres

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-02-23 DOI: 10.1016/j.coco.2025.102325

Xiaoyan Liu , Yonghao Ge , Shao Liu , Yaqiao Wang , Baohua Guo , Xiangdong Wang

{"title":"Simultaneous enhancement of strength and toughness of polybutylene terephthalate composites via oriented shish-kebab crystals induced by oriented polytetrafluoroethylene nanofibres","authors":"Xiaoyan Liu , Yonghao Ge , Shao Liu , Yaqiao Wang , Baohua Guo , Xiangdong Wang","doi":"10.1016/j.coco.2025.102325","DOIUrl":"10.1016/j.coco.2025.102325","url":null,"abstract":"<div><div>Balancing strength and toughness remains a significant challenge in composite materials research. Here, we quantitatively analysed the effect of the content of oriented fibres and the crystal orientation degree on the mechanical properties of a composite to overcome this limitation. Polytetrafluoroethylene (PTFE) was fibrillated in situ and then oriented by the shear flow field within a Polybutylene terephthalate (PBT) matrix. The impact of the oriented PTFE fibres on the rheological properties, crystallisation behaviour, crystal morphology and mechanical performance of PBT was systematically examined. The introduction of PTFE nanofibres into the PBT matrix promoted the development of oriented shish-kebab structures in the composite and enhanced the crystallinity of PBT. When the oriented PTFE nanofibre content was less than 1.5 phr, it was positively correlated with the crystal orientation degree of PBT. The oriented shish-kebab structures formed by the addition of 1.5 phr oriented PTFE nanofibres (sample PBT (PTFE1.5)) yielded the optimal improvement in mechanical properties. Compared with the tensile and impact strengths of pure PBT (spherulite structure), those of PBT (PTFE1.5) increased by 37.15 % and 180.94 %, respectively. This research offers an innovative, feasible strategy enabling polymers to enhance the strength and toughness of PBT composites simultaneously, with potential applications in high-performance domains, such as automotive and precision instrumentation.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"55 ","pages":"Article 102325"},"PeriodicalIF":6.5,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of temperature-responsive interpenetrate composite with enhancement in mechanical strength for switchable electromagnetic interference shielding

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-02-22 DOI: 10.1016/j.coco.2025.102324

Yudi Li , Linlin Zhao , Siyu Chen , Wei Feng , Rongling Zhang , Xialong Cai , Xulin Yang , Pan Wang , Giulio Cerullo , Nabil Kadhim Taieh , Hanjun Wei , Ying Li

{"title":"Construction of temperature-responsive interpenetrate composite with enhancement in mechanical strength for switchable electromagnetic interference shielding","authors":"Yudi Li , Linlin Zhao , Siyu Chen , Wei Feng , Rongling Zhang , Xialong Cai , Xulin Yang , Pan Wang , Giulio Cerullo , Nabil Kadhim Taieh , Hanjun Wei , Ying Li","doi":"10.1016/j.coco.2025.102324","DOIUrl":"10.1016/j.coco.2025.102324","url":null,"abstract":"<div><div>The development of switchable electromagnetic interference (EMI) shielding materials capable of adapting to environmental changes is of great significance in the fields of smart electronic devices. In this study, we present a temperature-responsive composite comprising graphene aerogel and poly(N-isopropylacrylamide) (PNIPAAm). The resulting composite exhibited a distinct EMI shielding effectiveness (EMI SE) below and above the critical solution temperature of 32 °C. This behavior is attributed to the movement of PNIPAAm chains, which results in the delamination and re-stacking of reduced graphene sheets. At 20 °C, the EMI SE of the composite did not reach the target value for commercial applications, and at 50 °C, its total EMI SE values exceeded 20 dB. In addition, the graphene aerogel prepared from graphene oxide with larger lateral dimensions enhances the mechanical strength and the overall structural integrity. This work demonstrates that temperature-responsive characteristics can be employed in the design of intelligent EMI shielding materials capable of adapting to environmental changes.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"55 ","pages":"Article 102324"},"PeriodicalIF":6.5,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CdS Nanocrystal/NiO nanosheet heterojunction for enhanced visible-light photocatalytic H2 production

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-02-22 DOI: 10.1016/j.coco.2025.102323

Yuan Xu , Jiaxin Liu , Huiqun Cao , Qianling Zhang

引用次数: 0

Scalable and simply-fabricated paint for waterproof and passive radiative cooling

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-02-21 DOI: 10.1016/j.coco.2025.102322

Yingnan Song , Bing Ge , Jingxian Wang

{"title":"Scalable and simply-fabricated paint for waterproof and passive radiative cooling","authors":"Yingnan Song , Bing Ge , Jingxian Wang","doi":"10.1016/j.coco.2025.102322","DOIUrl":"10.1016/j.coco.2025.102322","url":null,"abstract":"<div><div>Radiative cooling paint (RCP) has aroused great interest because of its high cooling performance and the simple processing process. However, the large-scale application of RCP is still limited by its poor cooling durability, which is related to a contaminated surface outdoors. Here, we proposed a superhydrophobic thermoplastic urethane (TPU)/BaSO<sub>4</sub>/SiO<sub>2</sub> paint with a water contact angle of 150.6° that remained a sustainable clean surface to maintain its excellent cooling effect. The high electron band gap of BaSO<sub>4</sub>, the appropriate and broad particle size distribution, and the abundant TPU/BaSO<sub>4</sub>/SiO<sub>2</sub> interfaces dramatically promoted its sunlight reflectivity to 94.3 %. With the phonon resonance of BaSO<sub>4</sub> and SiO<sub>2</sub> at 9 μm, and the chains asymmetrical stretching resonance of TPU, the TPU/BaSO<sub>4</sub>/SiO<sub>2</sub> coating reached a high IR emissivity of 93.9 %. Field tests indicated that the optimized TPU/BaSO<sub>4</sub> coating cooled the substrate by 24.3 °C, and the sub-ambient cooling effect reached 13.2 °C. Besides, the cooling power of the TPU/BaSO<sub>4</sub> membrane reached 108.8 W/m<sup>2</sup> at high noon and exceeded 200 W/m<sup>2</sup> when the temperature difference between the object and surroundings reached 20 °C. Additionally, the IR emissivity of the TPU/BaSO<sub>4</sub>/SiO<sub>2</sub> coating remained 84.7 % even at an incident angle of 80°, so the cooling effect preserved a whole day. Our work provided a new design for high-performance passive radiative cooling materials with outstanding waterproof and self-cleaning properties.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"55 ","pages":"Article 102322"},"PeriodicalIF":6.5,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transforming spent lithium iron phosphate cathodes and waste plastics into high-performance sodium-ion battery anodes via co-pyrolysis

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-02-20 DOI: 10.1016/j.coco.2025.102306

Botao Zheng , Shihong Chen , Mulan Tu , Kun Zuo , Jiayi Yang , Qinghua Chen , Yuming Chen , Xiaochuan Chen , Liren Xiao , Junxiong Wu , Xiaoyan Li

{"title":"Transforming spent lithium iron phosphate cathodes and waste plastics into high-performance sodium-ion battery anodes via co-pyrolysis","authors":"Botao Zheng , Shihong Chen , Mulan Tu , Kun Zuo , Jiayi Yang , Qinghua Chen , Yuming Chen , Xiaochuan Chen , Liren Xiao , Junxiong Wu , Xiaoyan Li","doi":"10.1016/j.coco.2025.102306","DOIUrl":"10.1016/j.coco.2025.102306","url":null,"abstract":"<div><div>With the increasing prevalence of lithium iron phosphate (LFP) batteries and waste ultra-high molecular weight polyethylene (UHMWPE) products, advanced recycling strategies have garnered significant interest in sustainable resource development. However, challenges such as cumbersome procedures and improper hazardous waste disposal must be effectively addressed. In this work, we propose a simplified and economical method for converting waste LiFePO<sub>4</sub> cathode waste to a novel sodium-ion battery anode material. By leveraging waste plastics to catalyze the production of carbon nanotubes (CNTs) at high temperatures, a novel anode material, R-Fe<sub>2</sub>P/CNT, was fabricated, which exhibits excellent long-term cycling stability (capacity retention rate of 86.36 % at 1.0 A g<sup>−1</sup> after 600 cycles) and rate capability. Furthermore, density functional theory calculations showed improved sodium adsorption and enhanced electronic conducitivity in R-Fe<sub>2</sub>P/CNT composites. This strategy effectively recycles the valuable components of used batteries and plastics, offering a new \"treating waste with waste\" concept for the preparation of functional materials.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"55 ","pages":"Article 102306"},"PeriodicalIF":6.5,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

3D-printing magnetic susceptor filament for induction welding of thermoplastic composite sandwich panels

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-02-19 DOI: 10.1016/j.coco.2025.102321

R.G. Martin , C. Jonasson , C. Johansson , J.R. Tavares , M. Dubé

{"title":"3D-printing magnetic susceptor filament for induction welding of thermoplastic composite sandwich panels","authors":"R.G. Martin , C. Jonasson , C. Johansson , J.R. Tavares , M. Dubé","doi":"10.1016/j.coco.2025.102321","DOIUrl":"10.1016/j.coco.2025.102321","url":null,"abstract":"<div><div>A magnetic susceptor in a printable filament form is developed for the induction welding of thermoplastic composites. The susceptor is based on Ni particles embedded in a poly-ether-imide matrix. It is extruded and spooled to form a filament which can then be 3D-printed. The susceptor produces heat by hysteresis losses due to the magnetic properties of the Ni particles. As opposed to other typical electrically conductive heating elements, no percolation threshold needs to be achieved to produce heat as the Ni particles individually heat up when exposed to the induction coil's magnetic field. The heating efficiency of the susceptor filament and its deposition by the fused filament fabrication technique are demonstrated. The susceptor is used to assemble all thermoplastic composite sandwich panels. The sandwich samples are tested by the flatwise tensile test and a tensile strength of 4.6 MPa is obtained, which is equivalent to or higher than reported strengths for typical aerospace-grade sandwich panels. The printable susceptor opens the way to new induction welding or heating applications as it can be printed on a surface to produce a desired heating pattern.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"55 ","pages":"Article 102321"},"PeriodicalIF":6.5,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Damage-free processing of carbon-carbon composites based on ultrafast laser and rotational optics

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-02-19 DOI: 10.1016/j.coco.2025.102320

Xu Wang , Yichen Huang , Zihao Zhang , Liqun Li , Lijun Yang , Mingyu Li , Wenbo Zhu

{"title":"Damage-free processing of carbon-carbon composites based on ultrafast laser and rotational optics","authors":"Xu Wang , Yichen Huang , Zihao Zhang , Liqun Li , Lijun Yang , Mingyu Li , Wenbo Zhu","doi":"10.1016/j.coco.2025.102320","DOIUrl":"10.1016/j.coco.2025.102320","url":null,"abstract":"<div><div>High-precision processing of fiber reinforced composites is one of the important methods to expand its application range. This study focuses on solving the problems of interlayer cracking and fiber tear in the traditional processing of carbon fiber composites. The combination of ultrafast laser and rotating optical system enables flexible control of scanning turns and radius, and achieves high-precision and damage-free processing of materials through ring cutting drilling technology. Based on the response surface methodology, the micro-hole processing parameters are optimized using the measurement results of the ablation threshold, finally the variation law of the geometric dimensions of the micro-hole inlet and outlet is obtained. The laser defocus amount has the greatest effect on the dimensions of the micro-hole inlet, while the single-layer feed amount will have a greater effect on the micro-hole outlet. In addition, the ring cutting drilling method can effectively eliminate defects such as fiber pullout, severe ablation at the end of the fiber and ablation product accumulation. For the vertical surface of the micro-hole sidewall, the roughness can be reduced to Rq 0.6 μm, the fiber and the matrix are removed synchronously. The roughness of the parallel surface after ultrafast laser polishing is about Rq 5 μm, which is about 36 % of the initial roughness. In addition, the parallel surface and vertical surface of the composite material exhibit different states of laser-induced periodic surface structures (LIPSS).</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"55 ","pages":"Article 102320"},"PeriodicalIF":6.5,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In situ experimental study on damage evolution of the needled Carbon/Carbon composites under different loading types by high-resolution X-ray computed tomography

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-02-19 DOI: 10.1016/j.coco.2025.102318

Kunjie Wang, Chenghai Xu, Bo Gao, Boyi Wang, Xinliang Zhao, Songhe Meng

{"title":"In situ experimental study on damage evolution of the needled Carbon/Carbon composites under different loading types by high-resolution X-ray computed tomography","authors":"Kunjie Wang, Chenghai Xu, Bo Gao, Boyi Wang, Xinliang Zhao, Songhe Meng","doi":"10.1016/j.coco.2025.102318","DOIUrl":"10.1016/j.coco.2025.102318","url":null,"abstract":"<div><div>The damage evolution of the needled Carbon/Carbon (C/C) composites has a complex dependence on the load types and microstructures. In order to reveal this mechanism, this paper analyzed the initiation, coalescence and propagation of cracks in the needled C/C composites under three loading types of compression, in-plane shear and interlaminar shear by in-situ X-ray computed tomography and gray threshold segmentation methods. The growth sequence of cracks under different loads is clarified. The results show that the original defects form a network of crack nucleation inside the material. The cracks evolve from the original holes and propagate to the adjacent area through assimilation. In addition, the damage evolution changes significantly with the loading type. Compression failure is a quasi-brittle failure caused by the breakage and defects expansion of the nonwoven cloth in the needled areas, and it exhibits macroscopic delamination and out-of-plane shear. Under the in-plane shear, the cracks nucleate in the needled holes and propagate longitudinally along the 90° (loading direction) fibers. The cracks evolve independently in different layers, and 0° fibers bridge cracks. The material exhibits characteristics of progressive damage and ductile failure. As for the shear load in the interlaminar direction, the transfer yarns in the thickness direction provide beneficial lateral constraints to resist interlaminar debonding.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"55 ","pages":"Article 102318"},"PeriodicalIF":6.5,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing Bi-directional thermal conductivity: A novel tri-layer graphene-liquid metal composite for advanced thermal management

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-02-19 DOI: 10.1016/j.coco.2025.102319

Jie Zhang , Sijin Yan , Qingbo An , Tongshun Wu , Luyi Zou

{"title":"Enhancing Bi-directional thermal conductivity: A novel tri-layer graphene-liquid metal composite for advanced thermal management","authors":"Jie Zhang , Sijin Yan , Qingbo An , Tongshun Wu , Luyi Zou","doi":"10.1016/j.coco.2025.102319","DOIUrl":"10.1016/j.coco.2025.102319","url":null,"abstract":"<div><div>The rapid advancement of electronic devices demands the development of high-performance thermal conductive materials for efficient thermal management. This study presents a novel composite thermal conductive film featuring a unique sandwich structure designed to overcome critical challenges in thermal management. The composite is constructed using a graphene-carbon fiber matrix encapsulating liquid metal as the core layer, enclosed between graphene membranes. This design harnesses graphene's exceptional in-plane thermal conductivity, mechanical stability, and isolation properties; carbon fiber's structural support and lateral sealing; and liquid metal's superior thermal conductivity and gap-filling capabilities. The resulting film achieves outstanding thermal performance, with an in-plane thermal conductivity of 106.1 W/mK and a through-plane thermal conductivity of 43.1 W/mK. The sandwich structure effectively suppresses liquid metal leakage and corrosion under high-pressure conditions, while retaining robust mechanical integrity. Unlike common thermal interface materials, this three-layer structure performs distinct thermal management functions. The bottom layer, a graphene film, acts as a heat-spreading layer, transforming point conduction into faster surface conduction. The middle layer is a flexible vertical heat conduction layer, serving as a highway for heat transfer. The top layer efficiently dissipates heat due to graphene's excellent radiative properties. This composite material can thus be used not only as a thermal interface material but also as a heat dissipation material in small mobile electronic devices.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"55 ","pages":"Article 102319"},"PeriodicalIF":6.5,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0