Article
Construction & Building Technology
Li Min, Dilum Fernando, Michael Heitzmann, Chuang Miao
Summary: Hybrid fibre reinforced polymer-timber thin-walled structural members offer a sustainable alternative to light-weight steel and aluminium. The study investigated the effect of manufacturing pressure and fibre type on mechanical properties, finding the best parameters depended on the type of load applied. Classic laminate theory was accurate for membrane properties but inaccurate for flexural properties of HFT laminates.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Yingli Jin, Xinquan Wang, Wen Huang, Xiao Li, Quan Ma
Summary: This study investigated the mechanical properties, durability, and microscopic characteristics of hybrid natural fibre-reinforced roadbed foamed concrete (HNFRRFC). The optimal fibre content and mix ratio were found to be 0.3% and 1:2, respectively, which enhanced the maximum strength of the concrete. All mix ratios demonstrated improved strength and durability, and a microscopic property analysis revealed the underlying mechanisms behind the augmented mechanical properties and durability of the HNFRRFC specimens. Incorporating hybrid natural fibres offers an effective means of increasing the strength, durability, and microscopic attributes of foamed concrete used in roadbed applications.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
N. Z. Nkomo, L. M. Masu, P. K. Nziu
Summary: This study focuses on predicting and optimizing the fresh and hardened properties of PET fiber reinforced concrete containing partial cement replacement with fly ash. A model was developed to accurately predict the concrete's performance and determine the optimum composition for maximum mechanical strength at the lowest cost. The experimental results validated the predictions, and a good correlation was observed between the actual and predicted values. The study provides valuable insights for optimizing the use of PET fiber reinforced concrete in various applications.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Optics
Christopher Holmes, Mike Godfrey, Paolo L. Mennea, Daniel J. Bull, Janice Dulieu-Barton
Summary: This study demonstrates, for the first time, the reconfigurability of optical signals within advanced laminated composites. By using an ultra-thin planar optical circuit embedded in glass fiber reinforced polymer (GFRP) and employing Ohmic heating for switching optical input, new opportunities for optical reconfigurability within advanced composites are highlighted, enabling data transmission redundancy and considering branching optical fiber architectures.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Engineering, Manufacturing
Saeid Hosseinpour Dashatan, Moumita Sit, Zhongyi Zhang, Erwan Grossmann, Jeremy Millot, Ya Huang, Hom Nath Dhakal
Summary: This study investigates the damping and viscoelastic properties of flax/epoxy composites and their carbon fiber hybrid laminates. The results show that the location and number of flax plies contribute to the damping behavior, while the bending stiffness is mainly influenced by the position of carbon plies. The damping ratio varies for each vibration mode, and the trade-off between flexural stiffness and damping ratio can lead to significant improvements in specific configurations.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Polymer Science
Siti Nadia Mohd Bakhori, Mohamad Zaki Hassan, Noremylia Mohd Bakhori, Ahmad Rashedi, Roslina Mohammad, Mohd Yusof Md Daud, Sa'ardin Abdul Aziz, Faizir Ramlie, Anil Kumar, J. Naveen
Summary: This study aimed to determine the physical and mechanical properties of pineapple leaf fibre (PALF) and Kevlar reinforced unsaturated polyester (UP) hybrid composites. The results showed that the hybrid composites exhibited superior physical and mechanical properties, including higher tensile strength, modulus, and flexural strength, as well as better impact resistance compared to pure PALF composites. SEM scans revealed a stronger interfacial adhesion between the fibres and matrix in the hybrid composites.
Article
Optics
Foued Amrani, Jonas H. Osorio, Frederic Delahaye, Fabio Giovanardi, Luca Vincetti, Benoit Debord, Frederic Gerome, Fetah Benabid
Summary: The design of hollow-core photonic crystal fibres with hybrid-lattice cladding significantly reduces confinement loss and preserves single-mode operation, showing potential for next-generation optical fibres.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Materials Science, Multidisciplinary
S. Basak, D. B. Shakyawar, Kartick K. Samanta, Sanjoy Debnath, M. Bhowmick, Niranjan Kumar
Summary: A natural fibre-based flexural composite has been developed using natural rubber and suitable chemical formulation. The physical properties and performance characteristics of the composite were examined and compared with natural leather. The results showed that the composite had higher permeability and lower shrinkage, but lower tensile strength.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Textiles
B. Senthil Kumar, T. Murugan, S. Sakthivel
Summary: This research focused on analyzing the influence of different process parameters on the properties of bagasse fiber composite, producing 18 samples and conducting performance tests. Optimal process parameters were determined using S/N ratio and DMA analysis, followed by variance analyses and experimental validation, with SEM study on damage patterns of the composite samples.
JOURNAL OF THE TEXTILE INSTITUTE
(2022)
Article
Automation & Control Systems
Alice Proietti, Fabrizio Quadrini, Nicola Gallo, Loredana Santo
Summary: Hybrid carbon fibre-reinforced laminates were manufactured by recycling waste CFR laminates and using compression moulding. The waste CFR laminates were thermomechanically disassembled into single TS plies and then reassembled with a TP interlayer. The optimal compression moulding process and the effect of TP-TS hybridization were evaluated through extensive experimental tests, resulting in a hybrid laminate with bending strength and bending modulus at 47% and 54% of the virgin laminate, respectively.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Chemistry, Applied
R. Venkatesh, I. Kantharaj, R. Sasikumar, C. Ramesh Kannan, Anupam Yadav, M. Karthigairajan, P. Vivekanandan, Arundeep Murugan
Summary: Thermoplastic-based polymers are becoming increasingly important in various engineering fields. The addition of secondary phase reinforcements, such as natural and synthetic fibers, enhances their properties. However, the combination of thermoplastics and natural fibers often leads to low mechanical strength and incompatibility, requiring special treatment for the natural fibers. In this experimental study, polypropylene hybrid composites were enhanced by using various ratios of glass (synthetic)/hemp (natural) fibers, with a 5 wt% compatibilizer, through injection molding. The results showed improved mechanical impact and flexural and tensile strength of the polypropylene hybrid composites by 37.5%, 14.2%, and 21.1%, respectively. The thermal absorption characteristics were evaluated using thermogravimetric analysis, which revealed that the decomposition of the composites was limited by the hemp fiber from 27°C to 700°C.
ADSORPTION SCIENCE & TECHNOLOGY
(2023)
Review
Engineering, Environmental
Kazeem Olabisi Odesanya, Roslina Ahmad, Mohammad Jawaid, Sedat Bingol, Ganiyat Olusola Adebayo, Yew Hoong Wong
Summary: The continuous exploration and utilization of high-performance fibers, derived from renewable sources, for ballistic applications is driven by the need for better protection against various kinds of ballistic impacts and threats. The development of ballistic protection materials with improved performance and low weight has been a focus in recent decades due to increasing cases of threats and insurgencies. This review aims to provide an overview of the progress and advances in natural-based anti-ballistic composites, including fiber/matrix selection, impact energy absorption, ballistic simulation, and economic cost analysis.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Polymer Science
Thandavamoorthy Raja, Vinayagam Mohanavel, Palanivel Velmurugan, Kaliappan Seeniappan, Durgesh Pratap Singh, Sinouvassane Djearamane, Lai-Hock Tey, Ling Shing Wong, Saminathan Kayarohanam, Sami Al Obaid, Saleh Alfarraj, Subpiramaniyam Sivakumar
Summary: Conducting research on the behavior of natural fibre composites under cyclic loading is crucial for ensuring mechanical durability. This study focuses on fabricating composite laminates using a hybridization effect of natural and synthetic fibres, and quantifying the impact of SiC filler combined with fibre reinforcement and epoxy matrix under cyclic loading. The results show that increasing the amount of SiC nanofillers greatly improves the fatigue life of the hybrid composite, with identified failure modes including porosity, matrix crack and laminate bonding strength.
Article
Chemistry, Analytical
Florian Lambinet, Zahra Sharif Khodaei
Summary: This study proposes a hybrid SHM solution for smart composite patch repair of aircraft structures based on PZT and FO sensors, and tests its application on a composite repair coupon under operational conditions. The results show promising potential for monitoring bondline integrity and highlight challenges in embedding FO sensors for reliable and repeatable diagnosis.
Article
Mechanics
Antigoni Barouni, Colin Lupton, Chulin Jiang, Abu Saifullah, Khaled Giasin, Zhongyi Zhang, Hom N. Dhakal
Summary: This study investigates the fatigue behavior of composite laminates with flax and glass fiber hybrid reinforcements. The hybrid configuration shows a great effect on fatigue life, with the alternating layers of flax and glass demonstrating the best performance and significantly lower probability of failure compared to other configurations. Fabrication-induced defects and fiber-matrix interface also play a role in influencing fatigue life and overall performance of the structures.
COMPOSITE STRUCTURES
(2022)
Article
Chemistry, Physical
Gabriel Toshiaki Tayama, Silvia Helena Santagneli, Marcos de Oliveira Jr, Younes Messaddeq
Summary: In this paper, we synthesized and characterized transparent and photopolymerizable aluminum-phosphate-silicate hybrid materials. We investigated the structural evolution of the hybrid materials with varying silicon concentration using SEM, phase-contrast AFM, and solid-state NMR techniques. The structure of the materials follows the build-up principle using aluminum phosphate species and alkoxysilane chains as building blocks. The photopolymerization mechanism results in structural heterogeneities in the range of 5 nm.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Materials Science, Ceramics
Amanda Maria Claro, Caroline Cassia Alves, Kelvin Sousa dos Santos, Euzane Gomes da Rocha, Marina de Lima Fontes, Gustavo Claro Monteiro, Gustavo Senra Goncalves de Carvalho, Jose Mauricio Almeida Caiut, Andrei Moroz, Sidney Jose Lima Ribeiro, Hernane S. Barud
Summary: Tissue engineering is a multidisciplinary field that aims to improve health and quality of life by restoring tissue and organ functions. Cells and scaffolds are the major components of tissue engineering, and 3D porous scaffolds are more suitable for tissue regeneration. In this study, a regenerated cellulose sponge was used as a sacrificial template to synthesize a three-dimensional porous alumina-silica scaffold.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
York E. Serge-Correales, David Neumeyer, Sajjad Ullah, Robert Mauricot, Qilin Zou, Sidney J. L. Ribeiro, Marc Verelst
Summary: In this study, oleic acid-stabilized ZnGa2O4 nanoparticles were successfully synthesized with controlled size and monodispersity. The size and persistent luminescence of the nanoparticles could be further increased using a seed mediated approach. Surface modification strategies involving poly(acrylic acid) or cysteamine in conjunction with BF4- provided long-term colloidal stability and enhanced persistent luminescence.
Article
Materials Science, Multidisciplinary
Filipe A. Couto, Kelly T. Paula, Moliria V. Santos, Sidney J. L. Ribeiro, Cleber R. Mendonca
Summary: Periodic dielectric structures have the potential to control light propagation at micro-and nanoscale efficiently with low losses. Among various techniques, femtosecond Laser-Induced Forward Transfer (fs-LIFT) is a promising method due to its simplicity and ability to process different materials while maintaining their integrity. In this work, well-ordered periodic arrays of silk fibroin (SF) microstructures were successfully printed using fs-LIFT. Finite-element simulations were performed to study their response to electromagnetic radiation in the near to mid-infrared range with consideration of the substrate. The results showed a decrease in reflectivity, which was supported by experimental results. Coating the structures with a higher index dielectric material further enhanced the decrease in reflectivity in the mid-infrared range. This study demonstrates a straightforward approach to fabricate ordered arrays of SF microstructures, which have potential applications as controllable reflectivity coatings in the near to mid-infrared range.
Review
Polymer Science
Thales Alves Faraco, Marina de Lima Fontes, Rafaella Takehara Paschoalin, Amanda Maria Claro, Isabella Salgado Goncalves, Mauricio Cavicchioli, Renan Lira de Farias, Marco Cremona, Sidney Jose Lima Ribeiro, Hernane da Silva Barud, Cristiano Legnani
Summary: With the progress of nanotechnology, organic electronics have gained momentum, especially in the production and development of electronic devices based on organic semiconductors. In recent years, there has been great interest in using organic electronics in various fields, including biomedicine. Bacterial nanocellulose (BNC) has attracted attention as an advanced material for its unique physical and mechanical properties, making it a versatile substrate for organic electronics applications. This review focuses on BNC production methods, properties, and applications, particularly in OLEDs and flexible OLEDs (FOLEDs), and discusses the future progress of BNC-based flexible substrate nanocomposites.
Article
Chemistry, Physical
Jeferson A. Dias, Silvia H. Santagneli, Ana C. M. Rodrigues, Naiza V. Boas, Younes Messaddeq
Summary: This paper investigates the effects of crystallization advance on the material structure and electrical properties of lithium-ion Na+ super ionic conductor (NASICON) glass ceramics. The study crystallizes glasses with different compositions and monitors the glass-to-crystal transformation using various techniques. The results show that the addition of scandium improves the stability against crystallization and induces lattice expansion. Crystallization leads to significant structural changes, while the percolation of crystals greatly enhances conductivity. Scandium also reduces the sizes of crystals and promotes larger grain sizes for better conductivity in fully crystallized glass ceramics.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Polymer Science
Gabriel Toshiaki Tayama, Sandra Helena Messaddeq, Silvia Helena Santagneli, Younes Messaddeq
Summary: This study investigated the photopolymerization of aluminum-phosphate-silicate resins obtained from the hybrid sol-gel route for Vat photopolymerization (VPP) process. The critical energy (E (c)) and penetration depth (D (p)) were determined as a function of laser power and MPTMS (silicate) concentration. The kinetics of photopolymerization were explored using steady- and unsteady-state photo-DSC experiments. The experimental results supported the validity of the E (c) proportional to k ( t ) (1/2)/k (p) and D (p) proportional to epsilon relationship for predicting critical energy and penetration values for arbitrary resins.
Article
Materials Science, Multidisciplinary
Beatriz Damasio de Freitas, Bruno Seiki Domingos Onishi, Fabio Jose Caixeta, Ricardo Bortoletto-Santos, Francis Dayan Rivas Garcia, Younes Messaddeq, Sidney Jose Lima Ribeiro
Summary: In this study, an organic-inorganic hybrid (OIH) was successfully synthesized using mild conditions, based on castor oil (CO)-derived urethanesil (Ut), as well as incorporating and interacting with europium beta-diketone [Eu(tta)3(H2O)2]. The CO-based OIH-Ut films exhibited high transmittance in the visible and infrared spectrum (90%), while urethanesil showed photoluminescence (PL) with emission at 416.0 nm when excited at 319.0 nm. The results also demonstrated an increase in the intrinsic quantum yield of PL (QEuL) for [Eu(tta)3(H2O)2], from 27% for the isolated complex to 49% when incorporated into OIH-Ut.
Article
Chemistry, Physical
Fernando E. E. Maturi, Anuraag Gaddam, Carlos D. S. Brites, Joacilia M. M. Souza, Hellmut Eckert, Sidney J. L. Ribeiro, Luiis D. Carlos, Danilo Manzani
Summary: Glasses with tunable properties are versatile materials for optical technologies. To design new optical glasses, understanding the correlation between their chemical composition and physical properties is crucial. We demonstrate the feasibility of using fluoride phosphate glasses co-doped with Pr3+ and Yb3+ ions for temperature sensing. These glasses have high stability and act as luminescent thermometers without the need for recurring calibration. They exhibit competitive thermal sensitivity and uncertainty, making them promising for cost-effective and accurate temperature probes, advancing photonic technologies.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Brice Bellanger, Wagner Correr, Emmanuel Veron, Cecile Genevois, Yannick Ledemi, Mathieu Allix, Younes Messaddeq
Summary: The influence of the structural environment of lanthanide ions on the co-doping Faraday effect in fluorophosphate glasses and glass ceramics is studied. The crystallization process and the composition law of TbOF glass ceramics are investigated, and the Verdet constants of co-doped glass ceramics are compared to those of parent glasses. It is found that the structural organization around the lanthanide cation site increases the co-doping influence on the Faraday Effect by optimizing the superexchange interaction.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
V. Fuertes, F. E. Durak, V. A. G. Rivera, N. Gregorie, S. Morency, M. Sharma, L. Wang, Y. Messaddeq, S. LaRochelle
Summary: By adjusting the glass composition, preform, and fiber fabrication conditions, the number density of bismuth active centers (BACs) in the E and S bands can be significantly tailored and increased, resulting in enhanced luminescence and gain.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Ceramics
Samar Aouji, Theo Guerineau, Rayan Zaiter, Evelyne Fargin, Younes Messaddeq, Thierry Cardinal
Summary: In this study, two barium gallo-germanate glass series were investigated to understand the impact of yttrium introduction on their physicochemical properties and crystallization behavior. Yttrium oxide (YO3/2) was added into the glass matrix or substituted for gallium oxide in concentrations ranging from 1 to 20 mol%. Raman spectroscopy was used to analyze the glass structure, while thermal, optical, thermo-mechanical, and physical properties were examined. The introduction of yttrium ions increased various properties of the glasses, such as glass transition temperature, crystallization temperature, softening temperature, coefficient of linear thermal expansion, and density. Competition between the gallo-germanate zeolite-type phase and the yttrium-containing phase was observed, with the yttrium introduction inhibiting the formation of surface crystallization in the glasses from 13 mol% of YO3/2 onwards.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Ceramics
Victor Fuertes, Nicolas Gregoire, Philippe Labranche, Steohane Gagnon, V. A. G. Rivera, Sophie LaRochelle, Younes Messaddeq
Summary: Rayleigh scattering enhanced nanoparticle-doped silica-based optical fibers have gained attention for distributed sensing applications. Adding in situ growth Ba-rich nanoparticles to alkaline earth-based compositions allows customization of nucleated nanoparticles in the preform core. The fiber drawing process further impacts their size and composition, resulting in optimized trade-off between Rayleigh scattering enhancement and optical losses, enabling sensing lengths from 6.5 to 28.7 m. The ability to easily tailor Ba-rich nanoparticle characteristics strengthens the potential of in situ grown alkaline earth nanoparticles for future distributed optical fiber sensors.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Energy & Fuels
Marivone Gusatti, Daniel A. R. Souza, Sidney J. L. Ribeiro, Marcelo Nalin
Summary: In this study, a novel all-solid-state electrochromic device (ECD) was prepared using a cost-effective and industrially applicable spray coating technique, eliminating the use of indium tin oxide (ITO), tungsten(VI) oxide (WO3), and Li+ or any other liquid/gel electrolytes. The fabricated ECD demonstrated a reversible color change between a light-blue (off) and darkblue (on) state, with good and homogeneous contrast. The device exhibited a coloration efficiency of 174.62 cm2/C and cycle stability for at least 150 times.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Multidisciplinary Sciences
V. Fuertes, N. Gregoire, P. Labranche, S. Gagnon, S. LaRochelle, Y. Messaddeq
Summary: Rayleigh scattering enhanced nanoparticle-doped optical fibers, although restricted in composition and experimental conditions, show potential for distributed sensing applications. In this study, YPO4 nanocrystals are used to develop tunable optical fibers with enhanced scattering and optical performance. The fiber drawing process plays a crucial role in determining the nanocrystal features, and fibers drawn below 1950°C exhibit homogeneous characteristics and performance. The fabricated fibers demonstrate tunable backscattering and optical losses, enabling sensing lengths from 0.3 m to over 58 m. This work suggests a promising future for YPO4 nanocrystals in distributed sensing and opens the door to the incorporation of other REPO4 nanocrystals.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Manufacturing
Wenwu Zhang, Helezi Zhou, Bin Huang, Huamin Zhou, Xiongqi Peng
Summary: This paper investigates the tool-ply friction behavior of jute/PLA biocomposites in thermoforming. A pull-through friction testing device was developed to characterize the tool-ply friction behavior of jute/PLA prepreg at elevated temperature. The effects of alkali treatment, fiber orientation, normal force, and slipping velocity were studied, and a quantitative definition of tool-ply friction behavior was achieved. The results indicate a strong relationship between tool-ply friction behavior and woven and fiber structures, indicating hydrodynamic lubrication.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Stephen Clay, Wesley Ault, Alex Faupel, Caglar Oskay, Philip Knoth, Noam N. Y. Shemesh, Rami Haj-Ali, Uri Breiman, Ido Meshi, Ofir Shor
Summary: This paper presents an experimental investigation on the compression failure mechanisms of laminated carbon fiber reinforced composites under non-standard quasi-static loading. The results demonstrate the presence of interior kink bands, surface ply splitting, and delaminations, with each failure mechanism associated with different stress levels.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Bowen Zeng, Jinlong Yang, Zhi Ni, Yucheng Fan, Ziyan Hang, Chuang Feng
Summary: This study successfully improved the pyroelectric properties of PVDF films by preparing functionally graded graphene nanoplatelet (FG-GNP) reinforced PVDF composite films. The increase in the number of layers and the concentration of GNP near the surface of the composite film were found to enhance the pyroelectric properties and temperature stability.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Shenghe Zhang, Fukai Chu, Weizhao Hu, Bibo Wang, Richard K. K. Yuen, Yuan Hu
Summary: This study improves the flame retardancy and mechanical properties of PBAT by synthesizing a phosphorus-containing intercalator and mixing it into the PBAT matrix.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Tharan Gordon, Michael R. Wisnom, Byung Chul Kim
Summary: Thickness tapering is a common strategy for efficient and lightweight composite structures, but it can introduce delamination sites. This study investigated the use of ply scarfing method to improve the compressive failure stress of tapered laminates made from thick unidirectional non-crimp fabrics. The results showed that ply scarfing suppressed delamination and increased the failure stress by 60%.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Xin Wang, Yiting Qu, Junlei Bai, Fujun Xu, Bin Ding, Xiaohua Zhang
Summary: A solution-based strategy is proposed to achieve a strong bond between fibers and matrix in powder materials, resulting in improved mechanical properties, thermal conductivity, and fracture strain of the composites. The method also offers advantages such as enhanced powder flowability and thermal stability.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Xing Zhou, Guosheng Wang, Dexiang Li, Qi Wang, Keming Zhu, Yaya Hao, Yueyang Xu, Neng Li
Summary: This study successfully synthesized polyurethane elastomer by using degraded products from waste PET, and fabricated composites with carbon nanotubes for strain sensors. The composites showed good mechanical and durability performance, indicating a potential method for recycling waste PET into valuable and functional materials.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Fei Peng, Tingting Shan, Rongrui Chen, Jiulong Shi, Di Liu, Guoqiang Zheng, Chaojun Gao, Kun Dai, Chuntai Liu, Changyu Shen
Summary: Janus polymer films with distinct surface performance and potential applications were successfully prepared by vacuum-assisted hot-compressing method and spray coating. These films exhibit decent actuation performance and rapid selfpowered sensing property, and can be used for real-time acetone monitoring system.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Biao Cheng, Huafeng Quan, Yuefeng Zhang, Dong Huang, Tongqi Li, Chong Ye, Xingming Zhou, Zhen Fan, Yafang Zhang, Ting Ouyang, Fei Han, Hongbo Liu, Jinshui Liu
Summary: In this study, a binary graphite network was constructed to improve the thermal conductivity and control the formation of micrometer-scale open pores in phase change composites. The developed composites showed a high thermal conductivity and phase change enthalpy, making them promising for thermal control in space optical-mechanical systems and other critical aerospace components.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Shihao Zuo, Fei Cheng, Guangming Yang, Jiangzhou Li, Yongjun Deng, Guangjun Gou, Xuejun Cui, Yunsen Hu, Xiaozhi Hu
Summary: Micro-arc oxidation (MAO) treatment was used to modify aluminum (Al) alloys in order to improve bond strength with carbon fiber reinforced polymer (CFRP). The treatment successfully created a porous surface with better hardness, roughness, and wetting, and introduced resin pre-coating (RPC) and carbon nanotube (CNT) fiber bridging to improve the bonding interface. The combined treatments significantly increased the bond strength by up to 156.1%, indicating the feasibility of MAO as an alternative method for manufacturing high-performance Al-CFRP composites in industrial production.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
James Kratz, Christophe Paris, Karolina Gaska, Vincent Maes, Ivana Partridge, Philippe Olivier
Summary: Faster heating rates and higher process temperatures can reduce the total process time while achieving the same degree-of-cure. Thermal analysis shows that thermoplastic interleaf particles melt at the recommended curing temperature. A short dwell at a lower temperature can prevent the mixing of thermoplastic particles and thermoset pre-polymer.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Thomas Maierhofer, Evripides G. Loukaides, Craig Carr, Chiara Bisagni, Richard Butler
Summary: Joining thermoset composites via resistance welding provides an efficient method for aerospace structures with benefits such as high-volume manufacturing and simplified surface preparation. The influence of welding parameters on joint performance is assessed using Mode I fracture toughness testing. A Bayesian approach is employed to select high-performance parameters.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Jiangan You, Ling Cai, Ronghua Yu, Haiping Xing, Jian Xue, Ying Li, Zhiwei Jiang, Dongmei Cui, Tao Tang
Summary: In response to the global environmental pollution crisis caused by waste plastics, recyclable design is an effective solution. A CPVC/PUA nanocomposite foam was developed using the plasticizing-foaming-reinforcing strategy, combined with catalytic carbonization. The foam exhibited high expansion ratio, robustness, solvent resistance, flame-triggered shape memory effect, and ablation resistance. The foam could be directly upcycled into functional carbon foam with attractive electromagnetic interference shielding performance.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Siyao Chen, Zhiyu Chen, Yangling Ou, Junwei Lyu, Junning Li, Xiangyang Liu, Yang Liu
Summary: In this study, we demonstrated the significant effect of composite interface on temperature increase in electrical heaters. By selectively fluorinating the outer walls of carbon nanotubes and compositing them with cellulose nanofibers, improved interfacial phonon diffusion was achieved, leading to a higher temperature increase rate.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Yanjun He, Agnieszka Suliga, Alex Brinkmeyer, Mark Schenk, Ian Hamerton
Summary: A new thermoset resin system based on a polybenzoxazine blend showed good performance under high ATOX irradiation. It reduced erosion yield by forming a silicon-rich surface layer and improved the mechanical properties of CFRP laminates.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)