Composites Communications最新文献_第3页

Si3N4 fiber-reinforced epoxy resin composites with different c-BN content for printed circuit board applications

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102355

Qinghe Shi, Kang Jin, Yuxuan Zhang, Hongyan Xia

{"title":"Si3N4 fiber-reinforced epoxy resin composites with different c-BN content for printed circuit board applications","authors":"Qinghe Shi, Kang Jin, Yuxuan Zhang, Hongyan Xia","doi":"10.1016/j.coco.2025.102355","DOIUrl":"10.1016/j.coco.2025.102355","url":null,"abstract":"<div><div>Fiber-reinforced resin matrix composites are widely used in organic printed circuit boards (PCBs). However, conventional glass fiber reinforced epoxy resin (EP) matrix composites suffer from low thermal conductivity and poor electrical properties. Herein, to coordinate the thermal and electrical properties of the composites, a novel c-BN/EP/Si<sub>3</sub>N<sub>4</sub> composite for PCBs was prepared by hot-pressing moulding method by selecting Si<sub>3</sub>N<sub>4</sub> fibers instead of glass fibers and introducing nano cubic boron nitride (c-BN) particles as filler at the same time. Combined with Si<sub>3</sub>N<sub>4</sub> fibers, nano c-BN filler with suitable content can further improve thermal transfer capacity and limit the volume shrinkage of EP during curing, resulting in the decreased porosity and strong interfacial bonding between Si<sub>3</sub>N<sub>4</sub> fibers and EP. When c-BN content is 20 wt%, the c-BN/EP/Si<sub>3</sub>N<sub>4</sub> composite shows excellent in-plane thermal conductivity (2.124 W m<sup>−1</sup> K<sup>−1</sup>), low coefficient of thermal expansion (4.34 ppm K<sup>−1</sup>) and excellent breakdown strength (55.71 kV mm<sup>−1</sup>). Therefore, the c-BN/EP/Si<sub>3</sub>N<sub>4</sub> composites have a potential application in the field of organic PCBs substrates.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102355"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687515","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

Synthesis and integration of sea urchin-like MnO2-GCN nanocomposite with imprinted polymers for mass-sensitive detection of chloramphenicol in water

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102357

Aysha Shaheen , Faryal Idrees , Faheem K. Butt , Adnan Mujahid , Adeel Afzal , Sami Ullah , Tayyaba Asim , Waheed S. Khan , Sadia Z. Bajwa

{"title":"Synthesis and integration of sea urchin-like MnO2-GCN nanocomposite with imprinted polymers for mass-sensitive detection of chloramphenicol in water","authors":"Aysha Shaheen , Faryal Idrees , Faheem K. Butt , Adnan Mujahid , Adeel Afzal , Sami Ullah , Tayyaba Asim , Waheed S. Khan , Sadia Z. Bajwa","doi":"10.1016/j.coco.2025.102357","DOIUrl":"10.1016/j.coco.2025.102357","url":null,"abstract":"<div><div>Overuse of antibiotics is associated with serious health concerns as common infections become harder to treat. This situation demands precise methods of antibiotic monitoring in complex mixtures. Chloramphenicol is a broad-spectrum antibiotic that was widely used to treat bacterial infections but because it is associated with serious side effects its use has been banned in many parts of the world. Detecting its presence in pharmaceuticals, food products, or biological samples is crucial for ensuring public health and safety. Being a broad-spectrum antibiotic it can also lead to the development of antibiotic-resistant bacteria. In this work, a novel mass-sensitive sensor is investigated to detect the presence of chloramphenicol in water samples. Sea urchin-like nanostructures of manganese dioxide and graphitic carbon nitride (MnO<sub>2</sub>-GCN) were designed. The nanocomposite consists of globules of about 500–700 nm with spikes of about 25–50 nm, spread all over the surface. This material was coated on a quartz crystal microbalance and further it was topped by a chloramphenicol imprinted polymer. The change in the basic frequency of this resultant device is related to the attachment and removal of chloramphenicol in the prepared interface. This sensor yielded a detection limit of 11 μM. The designed sensor proved almost 98–99 % specific to recognizing chloramphenicol as compared to thiamphenicol, florfenicol, and clindamycin. The developed sensor was successfully applied to determine chloramphenicol in water. The present study harbours the advantages of inherent specificity of imprinting technique and its utilization for the selective and specific detection of antibiotics.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102357"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696755","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

Albumin fouling-free electrochemical sensors based on polyaniline single walled carbon nanotube composites for precise purine metabolomics

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102363

Thenmozhi Rajarathinam , Sivaguru Jayaraman , Devaraju Subramani , Suraj Aswale , Jaewon Lee , Hyun-jong Paik , Chang-Seok Kim , Jang-Hee Yoon , Seung-Cheol Chang

{"title":"Albumin fouling-free electrochemical sensors based on polyaniline single walled carbon nanotube composites for precise purine metabolomics","authors":"Thenmozhi Rajarathinam , Sivaguru Jayaraman , Devaraju Subramani , Suraj Aswale , Jaewon Lee , Hyun-jong Paik , Chang-Seok Kim , Jang-Hee Yoon , Seung-Cheol Chang","doi":"10.1016/j.coco.2025.102363","DOIUrl":"10.1016/j.coco.2025.102363","url":null,"abstract":"<div><div>Electrochemical sensors enable rapid and accurate detection of targets. However, fouling is a burden that restricts sensor performance in complex biofluids and fouling resistant or fouling-free property is paramount to guarantee the reliable operation of sensors. Single-walled carbon nanotubes (SWCNTs) possess an exceptional catalytic capability owing to the weak molecular adsorption of sp3 carbon. Poly(aniline-N-propane sulfonic acid) (PAPS) polymer dispersed SWCNTs with a high conductivity (4.184 S/cm), and hydrophilicity were prepared to circumvent the fouling issues. The length of the PAPS dispersed SWCNTs were 3.1 ± 1.0 μm and the modified screen-printed carbon electrodes (PAPS-SWCNTs/SPCEs) demonstrated efficient electro-oxidation of purines, such as, uric acid (UA), xanthine (XA), and hypoxanthine (HX) after exposure to high concentrations of a common foulant, serum albumin. The peak-to-peak separations of UA–XA, XA–HX, and UA–HX were 0.396 V, 0.352 V, and 0.748 V, respectively. The detection limits of UA, XA, and HX were 0.047, 0.049, and 0.052 μM respectively. The practical applicability of the sensor was established using human serum and synthetic urine samples. The fabricated sensor is fouling-free and could serve as a potential diagnostic device for the early detection of renal diseases, such as renal calculi, chronic kidney diseases, and renal failure in resource-limited settings, since it does not require scrupulous sample pretreatment, frequent recalibration or prolonged waiting times. Moreover, the developed sensor adheres to ASSURED criteria, which is crucial for the diagnosis of renal diseases in resource-limited settings.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102363"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705450","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

Scanning active microwave thermography for inspection of defects in bonded fiber reinforced polymer joints

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102352

Mengyao Li, Xingxing Zou

{"title":"Scanning active microwave thermography for inspection of defects in bonded fiber reinforced polymer joints","authors":"Mengyao Li, Xingxing Zou","doi":"10.1016/j.coco.2025.102352","DOIUrl":"10.1016/j.coco.2025.102352","url":null,"abstract":"<div><div>Defects at the adhesive layer of bonded fiber-reinforced polymer (FRP) joints can compromise their structural strength and ductility, necessitating effective non-destructive evaluation (NDE) method. This study proposes scanning active microwave thermography (AMT) as an efficient and rapid NDE technique to visualize interfacial defects at bonded FRP joints. First, multi-physics numerical simulations were conducted, which agrees well with experimental results in thermal response. The simulation demonstrated the formation of an electric field concentration at the specimen edges. Second, 14 bonded FRP joints with various defect shapes, sizes, locations, and plate thicknesses were tested under AMT. Tests show that AMT can effectively detect interfacial defects in FRP joints with a diameter greater than 5 mm when carbon FRP (CFRP) is facing the AMT energy. As a comparison, when glass FRP (GFRP) are facing the AMT energy, it cannot be heated by AMT but the defect can still be detected by AMT, though it is not clear and accurate, because the bottom layer CFRP can be heated, which well explained the edge effects observed in test. Finally, a scanning AMT system was developed and used to visualize the interfacial defects at bonded FRP joints in a continuous manner, which exhibits high efficiency – defects can be inspected at a speed of 20 mm/s.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102352"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714904","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

Vibration-microwave curing molding process of carbon fiber reinforced polymer composites

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102370

Dechao Zhang , Lihua Zhan , Bolin Ma , Shunming Yao , Xin Hu , Jinzhan Guo , Yuhan Yuan

{"title":"Vibration-microwave curing molding process of carbon fiber reinforced polymer composites","authors":"Dechao Zhang , Lihua Zhan , Bolin Ma , Shunming Yao , Xin Hu , Jinzhan Guo , Yuhan Yuan","doi":"10.1016/j.coco.2025.102370","DOIUrl":"10.1016/j.coco.2025.102370","url":null,"abstract":"<div><div>Carbon fiber reinforced polymer composites (CFRP) are widely used in aerospace applications due to their superior specific strength and stiffness. However, the autoclave curing process is hindered by long curing times and high energy consumption. To address these challenges, we propose an innovative vibration-microwave curing process and corresponding experimental platform. The interlaminar shear strength and the fiber/resin interface microscopic morphology of the specimens were characterized using a universal testing machine and scanning electron microscopy (SEM), with a comparative analysis against the autoclave curing process. Experimental results indicate interlaminar shear strengths of 70.25 MPa and 74.44 MPa, alongside a significant presence of scaly resin on the fiber surfaces, suggesting good fiber impregnation. These findings effectively validate the feasibility of the proposed curing process. This study introduces a novel method for out-of-autoclave composites curing, demonstrating significant potential for practical applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102370"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737754","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

High-performance magnetoelectric composite with low DC bias magnetic field for detecting ultra-weak magnetic field

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102371

Xueping Xu , Weiwei Wu , Tao Zhu , Menghan Pei , Xiaoyan Zhang , Qinkai Han

{"title":"High-performance magnetoelectric composite with low DC bias magnetic field for detecting ultra-weak magnetic field","authors":"Xueping Xu , Weiwei Wu , Tao Zhu , Menghan Pei , Xiaoyan Zhang , Qinkai Han","doi":"10.1016/j.coco.2025.102371","DOIUrl":"10.1016/j.coco.2025.102371","url":null,"abstract":"<div><div>Based on a piezoelectric layer of piezoelectric macro fiber composite (MFC) and a magnetostrictive layer of iron-based amorphous or nanocrystalline alloy, a flexible laminated magnetoelectric composite magnetic field sensor has achieved ultra-high sensitivity and the detection of ultra-weak magnetic fields. The magnetoelectric sensor of amorphous alloy with lower loss (ME-A) exhibits a response voltage. The ME-A sample's optimal DC bias magnetic field has a small value of 5.04 Oe, corresponding to the magnetoelectric voltage coefficient of 18.30 V/(cm‧Oe). In addition, the ME-A sensor exhibits excellent linear response characteristics to ultra-weak AC magnetic field as low as 1.90 × 10<sup>−5</sup> Oe at the optimal frequency of 20.50 kHz, with a sensitivity of up to 542 mV/Oe. Specifically, the ME-A sample provides real-time sensing of stepped magnetic field changes, achieving a detection resolution as low as 1.54 × 10<sup>−5</sup> Oe. The ME-A sensor successfully detects stray magnetic fields below 1.0 × 10<sup>−3</sup> Oe generated by motors at different speeds. Overall, ME-A laminated structure magnetoelectric composite with excellent magnetoelectric properties can achieve ultra-weak magnetic field detection and become a new generation of flexible magnetic field sensors.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102371"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687510","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

High-performance PDMS composite sensors utilizing strain-sensitive conductive networks

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102350

Rapisa Jarapanyacheep , Yan Chen , Feng Gao , Huiyong Li , Siyuan Zhou , Congying Wang , Yilun Liu , Luqi Liu , Hui Zhang

{"title":"High-performance PDMS composite sensors utilizing strain-sensitive conductive networks","authors":"Rapisa Jarapanyacheep , Yan Chen , Feng Gao , Huiyong Li , Siyuan Zhou , Congying Wang , Yilun Liu , Luqi Liu , Hui Zhang","doi":"10.1016/j.coco.2025.102350","DOIUrl":"10.1016/j.coco.2025.102350","url":null,"abstract":"<div><div>The fabrication of sensing materials frequently encounters challenges due to insufficient sensitivity and non-linear sensing behavior. To address these issues, we propose a novel strategy that employs thermally expanded microspheres (TEMs) to facilitate local-strain-concentration and straight fillers to construct a strain-sensitive conductive pathway. To achieve this, we prepared polymer-based composites by combining TEMs, conductive nanofillers (such as carbon nanofiber (CNF) and carbon nanotube (CNT)), and a polydimethylsiloxane (PDMS) matrix. Electrical characterization demonstrated that the inclusion of TEMs enhanced the conductivity of nanocomposites by promoting a more efficient conductive network. Electron microscopy further revealed the formation of segregated conductive networks surrounding TEMs particles. Strain sensing evaluations revealed a significant increase in sensitivity of the composites with the inclusion of TEM particles. Unlike the highly curved CNT, the straight morphology of the CNF, specifically the 1.50CNF/76TEMs/PDMS nanocomposite, exhibited a broad linear sensing range and superior sensitivity. It achieved a gauge factor (GF) of 32.7 (0 % < ε < 50 %) with good stability and durability over 10,000 cycles. Our findings will provide a valuable reference for the design of strain sensors with high sensitivity, linearity, low cost, and scalability for future applications in the realm of flexible electronics.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102350"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725364","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

Armor strategy enables high temperature anti-swelling performance of 2D material based membranes by pre-protonation

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-20 DOI: 10.1016/j.coco.2025.102349

Yi-Wei Li, Xinyu Ai, Ruixiang Guo, Yeming Zhai, Kai-Ge Zhou

{"title":"Armor strategy enables high temperature anti-swelling performance of 2D material based membranes by pre-protonation","authors":"Yi-Wei Li, Xinyu Ai, Ruixiang Guo, Yeming Zhai, Kai-Ge Zhou","doi":"10.1016/j.coco.2025.102349","DOIUrl":"10.1016/j.coco.2025.102349","url":null,"abstract":"<div><div>Swelling significantly limits the performance and practical applications of two-dimensional (2D) membranes in aqueous environments. Here, we present an innovative \"armor strategy\" to enhance the anti-swelling performance of negatively charged 2D membranes, using vermiculite membranes (VM) as a model system. By spin-coating polyethyleneimine (PEI) onto the membrane surface and cross-linking with trimesoyl chloride (TMC), a robust protective layer was formed. The resulting VM-PEI-TMC membrane (VPTM) exhibits remarkable swelling resistance, with a swelling rate of only 0.83 %, compared to 23.70 % for unmodified VM. Practical applications of VPTM in ion sieving, dye rejection, and high-temperature operations demonstrated stable performance, with rejection rates of methylene blue (MB), rhodamine B (RB), and potassium ferricyanide (PF) exceeding 95 % at 80 °C. Furthermore, the universality of the armor strategy was established by applying it to graphene oxide membranes (GM), achieving a swelling rate reduction from 55.93 % to 5.02 %. These results highlight the versatility and effectiveness of the armor strategy, providing a promising pathway for developing high-performance, anti-swelling 2D membranes for environmental and energy applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102349"},"PeriodicalIF":6.5,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687511","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

Directional freeze-drying of PVDF-MoS2 composites for enhanced piezoelectric performance in triboelectric nanogenerators

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-20 DOI: 10.1016/j.coco.2025.102373

Junru Zhu , Dinku Hazarika , Jie Li , Jiaqi Lu , Kaihang Zhang , Liangquan Xu , Jianhui Wu , Zhen Cao , Hao Jin , Jikui Luo

{"title":"Directional freeze-drying of PVDF-MoS2 composites for enhanced piezoelectric performance in triboelectric nanogenerators","authors":"Junru Zhu , Dinku Hazarika , Jie Li , Jiaqi Lu , Kaihang Zhang , Liangquan Xu , Jianhui Wu , Zhen Cao , Hao Jin , Jikui Luo","doi":"10.1016/j.coco.2025.102373","DOIUrl":"10.1016/j.coco.2025.102373","url":null,"abstract":"<div><div>Poly(vinylidene fluoride) (PVDF), a piezoelectric polymer, exhibits excellent flexibility, ease of fabrication, and biocompatibility, with its β-phase being most electroactive. Enhancing β-phase content in PVDF via nanofiller incorporation often faces challenges like aggregation, poor dispersion and limited phase transition efficiency. To address this, we utilized a directional freeze-drying technique to embed 2-dimensional piezoelectric molybdenum disulfide (MoS<sub>2</sub>) nanosheets (NSs) into the PVDF matrix. This method facilitates the vertical alignment of MoS<sub>2</sub> NSs within the PVDF matrix, promoting the formation of the β-phase and significantly enhancing the piezoelectric performance without the need of external high-voltage poling. The resulting composite achieved an 86.28 % β-phase content and a piezoelectric coefficient (d<sub>33</sub>) of 13.3 p.m./V at 2.0 wt% MoS<sub>2</sub> NSs for the PVDF composite polymer. When applied in a triboelectric nanogenerator, the device delivered a peak output voltage of 1121 V and a power density of 16.2 W m<sup>−2</sup>, showcasing promising potential for energy-harvesting applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102373"},"PeriodicalIF":6.5,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696754","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

Preparation and mechanical properties of aluminum-matrix composites with layered architecture

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-20 DOI: 10.1016/j.coco.2025.102354

Min Gao , Xuexi Zhang , Mingfang Qian , Lin Geng

{"title":"Preparation and mechanical properties of aluminum-matrix composites with layered architecture","authors":"Min Gao , Xuexi Zhang , Mingfang Qian , Lin Geng","doi":"10.1016/j.coco.2025.102354","DOIUrl":"10.1016/j.coco.2025.102354","url":null,"abstract":"<div><div>Aluminum-matrix nanocomposites (AMCs) reinforced by SiC nanoparticles (SiCnp) were prepared by directional freezing combined with spark plasma sintering (SPS) and hot extrusion. The effect of SiCnp and layered structure on the microstructure and mechanical properties of SiCnp/Al nanocomposites was studied. The composite showed a layered structure consisting of SiCnp-rich and poor areas. With addition of 1 wt% SiCnp with average diameter 50 nm, the composite showed the best strength and toughness matching, with ultimate tensile strength (UTS) 326.2 MPa (35.4 % higher than that of homogeneous counterpart) and fracture elongation 8.6 %. The enhanced UTS in the layered nanocomposite was mainly attributed to the hetero-structure-induced formation of high density geometrically necessary dislocation (GND) in the near SiC-Al interface areas, which accordingly created pronounced hetero-deformation-induced (HDI) stress and work hardening capacity. The creation of layered architecture by feasibly directional freezing can advance the development of biomimetic layered composites with enhanced strength and toughness.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102354"},"PeriodicalIF":6.5,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687513","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