Article
Mechanics
J. R. Pothnis, K. Velon, G. S. Bhatia, A. Hejjaji, A. J. Comer
Summary: This study evaluates the effect of post-cure schedules and cure initiator form on the mechanical properties of GFRP laminates. The results suggest that an extended ambient post-cure cycle in conjunction with an initiator in powder form can be employed instead of an elevated temperature post-cure schedule with initiator in liquid form, which is economically beneficial and avoids the risk of porosity.
COMPOSITE STRUCTURES
(2024)
Article
Chemistry, Physical
Pei Bai, Mingchao Ma, Li Sui, Yunlong Guo
Summary: This study demonstrates significant changes in stiffness and the ratio between elastic and viscous responses in thin PDMS films under nanoconfinement, with an enhanced elastic modulus and increased viscous response observed. The results contribute to a better understanding of the nanoconfinement effect on viscoelastic properties of soft matter.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Multidisciplinary Sciences
Lianhu Xiong, Yun Wei, Chuanliang Chen, Xin Chen, Qiang Fu, Hua Deng
Summary: By using the Solvent exchange-Reprotonation processing strategy, a lamellar structure with high solar reflectivity and excellent optical performance was successfully fabricated. Outdoor tests showed that the structure achieved subambient temperature drops of 3.35 degrees Celsius during daytime and 6.11 degrees Celsius during nighttime.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
C. Fuger, R. Hahn, A. Hirle, T. Wojcik, P. Kutrowatz, F. Bohrn, O. Hunold, P. Polcik, H. Riedl
Summary: Structural imperfections, such as nano-columnar tissue phases, are an important feature in protective thin films. In PVD transition metal diborides, excess Boron results in nm-sized B-rich precipitations between nano-crystalline domains. This study focuses on super-stoichiometric TiB2 + z thin films, varying the stoichiometry from TiB2.04 to TiB4.42 (B: 67-82 at.%). The fraction and thickness of the tissue phase are mainly determined by the B content and deposition conditions. A decrease in tissue phase width from approximately 3-1 nm leads to an increase in critical stress intensity factor K-IC of approximately 40%.
MATERIALS RESEARCH LETTERS
(2023)
Article
Polymer Science
Hyeonjung Park, Boo Soo Ma, Youngkwon Kim, Dahye Lee, Sheng Li, Hyeong Jun Kim, Taek-Soo Kim, Bumjoon J. Kim
Summary: Thermomechanical properties of CP thin films were investigated by measuring thermal strains of the films floating on an IL. The pseudo-free-standing CP thin films exhibited linear in-plane thermal expansion and rapid increase in thermal strain above the melting temperature. The regioregularity of the CP thin films influenced their coefficient of thermal expansion and melting temperature.
Article
Polymer Science
Elodie Strupiechonski, Marisa Moreno-Rios, Erika O. Avila-Davila, Ramon Roman-Doval, Evgeny Prokhorov, Yuriy Kovalenko, Diana G. Zarate-Trivino, Dora Medina, Gabriel Luna-Barcenas
Summary: Chitosan-gold nanoparticle thin films were synthesized through chemical reduction of HAuCl4. The behavior of these films was investigated in relation to moisture and HAuCl4 content, revealing two relaxation processes related to glass transition and local diffusion of ions. The HAuCl4 content affected the conductivity of the films, demonstrating a percolation effect.
Article
Mechanics
Dong-Hyeop Kim, Sang-Woo Kim, In Lee
Summary: This study evaluates the deformation of plain woven composite structures induced by the curing process. The effective material property is calculated by considering fabric parameters closely related to the material properties. The theoretical models for predicting the cure behavior and effective material property are incorporated into finite element-based three-dimensional cure simulation. The results revealed the relationship between deformation and composite yarn thickness, as well as the gap between adjacent yarns. The process-induced deformation considering fabric parameters can contribute to improving the manufacturing quality of woven composite structures.
COMPOSITE STRUCTURES
(2022)
Review
Engineering, Electrical & Electronic
Jiseok Kim, Orkhan Gulahmadov, Mustafa B. Muradov
Summary: Triboelectric generators (TEGs) can harvest energy from human motions to provide electric power for electronic devices. Introducing micro- and nano-structures on the surface of TEGs can significantly enhance their output performance.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Review
Materials Science, Ceramics
Diego F. Lionello, Juan Ignacio Ramallo, Galo J. A. A. Soler-Illia, Maria Cecilia Fuertes
Summary: The mechanical properties of ordered mesoporous thin films and the experimental techniques used to measure them are discussed in this review. The relationship between hardness (H) and elastic modulus (E) with structural features such as porosity (P) are analyzed for several mesoporous systems. Additionally, tribological and fractomechanical features are assessed.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Review
Materials Science, Multidisciplinary
Wenjie Cheng, Jingjing Wang, Xun Ma, Ping Liu, Peter K. Liaw, Wei Li
Summary: This paper reviews the recent research progress on nano-multilayered films in surface protection fields, discussing their types, preparation methods, microstructures, mechanical properties, and corrosion resistance. It also analyzes the mechanisms of high hardness and toughness in these films and discusses future research directions for improving their strengthening and toughening properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Mahtab Salari Mehr, Lauri Aarik, Taivo Jogiaas, Aivar Tarre, Aarne Kasikov, Kaspar Roosalu, Hugo Mandar
Summary: This study investigated the ALD deposition of titanium doped chromium oxide (CTO) films and found that CTO films contained alpha-Cr2O3 eskolaite phase when deposited at Ti/(Ti+Cr) atomic ratio values of 0-0.24. The growth rate of Ti-O on chromium oxide was significantly higher than that on TiO2, and the Ti amount had only a minor influence on the growth rate of chromium oxide. The doping of chromium oxide with titanium increased the hardness value of the films and enhanced their absorbance in the wavelength range of 350 - 450 nm.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Unal Degirmenci, Mesut Kirca
Summary: The study focuses on the hybridization of carbon-based nanomaterials and presents a new G-CNT hybrid structure. By examining the thermodynamic feasibility and conducting molecular dynamics simulations, the mechanical and thermal properties of the proposed structures are investigated. It is found that the properties can be modified by adjusting the geometric arrangement of CNTs and graphene nanoribbons, as well as employing filler units.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Ali Narjabadifam, Babak Abazadeh, Mir Masoud Seyyed Fakhrabadi
Summary: This paper investigates the mechanical behavior of nano-spirals made of different graphyne structures under tension using molecular dynamics simulation, comparing the results with graphene nano-spirals. Five distinct deformation stages are observed, with the effects of various base structures on superelastic deformation capabilities and fracture mechanisms analyzed. It is found that the stretchability of nano-spirals increases with outer radius up to a maximum threshold, then decreases, with graphene and gamma-graphyne spirals showing clearer decrease compared to alpha- and beta-graphyne spirals.
MECHANICS OF MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Li-Chun Chang, Chin-Han Tzeng, Yung- Chen
Summary: In this study, TaWN films were fabricated using co-sputtering. The addition of W led to changes in the film's structure and mechanical properties, resulting in increased hardness and Young's modulus. The wear behavior of the films was also evaluated.
Article
Materials Science, Coatings & Films
Housei Akazawa
Summary: This study investigated the characteristics of titanium oxynitride thin films. The films transformed from nanocrystalline to amorphous structure as the degree of oxidation and nitridation increased. The oxidation efficiency was higher than the nitridation efficiency. Under appropriate gas flow conditions, the films exhibited high optical transmittance. There was a logarithmic relationship between the carrier concentration and Hall mobility of the films.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2022)
Article
Polymer Science
Solmaz Mojarad-Jabali, Kourosh Kabiri, Zeynab Karami, David J. Mastropietro, Hossein Omidian
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
(2020)
Article
Engineering, Mechanical
Morteza Behzadnasab, Ali Akbar Yousefi, Dariush Ebrahimibagha, Farahnaz Nasiri
RAPID PROTOTYPING JOURNAL
(2020)
Article
Polymer Science
Hossein Ipakchi, Atefeh Shegeft, Amir Masoud Rezadoust, Mohammad Jalal Zohuriaan-Mehr, Kourosh Kabiri, Samahe Sajjadi
IRANIAN POLYMER JOURNAL
(2020)
Article
Polymer Science
Arash Jahandideh, Nasrin Moini, Sara Bajgholi, Mohammad Jalal Zohuriaan-Mehr, Koroush Kabiri
JOURNAL OF APPLIED POLYMER SCIENCE
(2020)
Article
Polymer Science
F. Fotoohi, A. Salimi, H. Bouhendi, K. Kabiri
Article
Polymer Science
Roghayyeh Marefat Seyedlar, Mohammad Imani, Seyed Mojtaba Mirabedini
Summary: The study reported the preparation of polyfurfuryl alcohol (PFA) as a renewable binder resin derived from biomass conversion for developing a heat-resistant coating. Various techniques were used to characterize the synthesized PFA resin. The flexibility, adhesion strength, and thermal/curing behavior of coating samples were investigated under different compositions, showing significant improvements in properties with the addition of plasticizers and TiO2.
Article
Chemistry, Applied
S. M. Mirabedini, R. R. Farnood, M. Esfandeh, F. Zareanshahraki, P. Rajabi
PROGRESS IN ORGANIC COATINGS
(2020)
Article
Polymer Science
Parvin Naderi, Kourosh Kabiri, Reza Jahanmardi, Mohammad Jalal Zohuriaan-Mehr
Summary: In this study, novel IA-GMA and IA-ECH materials were synthesized by modifying itaconic acid (IA), and used for the preparation of superabsorbent polymers (SAP). IA-GMA acted as an internal crosslinker to enhance water absorbency of SAP, while IA-ECH served as an external crosslinker to improve gel strength and water absorption capacity.
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
(2021)
Article
Polymer Science
Z. Palizban, K. Kabiri, M. J. Zohuriaan-Mehr, N. Moini, A. Jahandideh
Summary: Antibacterial absorbent fabrics were prepared by immersing polyester cotton fabrics in a solution containing novel functional acrylic monomers and various antibacterial agents. The modified fabric showed good absorbency and antibacterial properties, with a significant increase in swelling capacity in distilled water. The antibacterial behavior of the fabrics against Staphylococcus aureus was also reported to be efficient.
Article
Chemistry, Applied
Elahe Adibzadeh, S. Mojtaba Mirabedini, Mortezad Behzadnasab, Ramin R. Farnood
Summary: This study aimed to prolong the healing effects of an epoxy-based coating containing vinyl ester resin and benzoyl peroxide-filled microcapsules. By developing dual-layer microcapsules with complex coacervation and in situ polymerization techniques, the study confirmed the structure and thermal stability of the microcapsules, and demonstrated the long-lasting healing effect of the coating samples embedded with 20% microcapsules.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Polymer Science
Nasrin Moini, Kourosh Kabiri
Summary: This study focuses on the recycling of fine acrylate-based Superabsorbent Polymer (SAP) particles using silicone-based coupling agents. The recycled SAP particles exhibit no deterioration in properties and even show increased gel strength under stress. The analysis reveals a well-attached porous structure of the recycled SAP particles, maintaining their integrity.
Article
Polymer Science
Fatemeh Shahkarami, Kourosh Kabiri, Farideh Piri, Nasrin Moini, Arash Jahandideh
Summary: Green chemistry is crucial for mitigating global warming and environmental pollution. This study synthesized conductive and asymmetric star-shaped biobased oligomers from bio-sourced resin using microwave irradiation. The resulting oligomers exhibited high thermal stability and conductivity. This functional structure has potential applications in tissue engineering and biobased adhesives.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)
Article
Polymer Science
Alireza Sabzevari, Maryam Alayi, Kourosh Kabiri, Mohammad Jalal Zohuriaan Mehr
Summary: In this study, a reactive diluent (D-1) derived from phthalic acid was synthesized to replace styrene in epoxy acrylate resin. The diluent D-1 showed better performance in reducing the viscosity of the resin compared to deactivated diluent D-p and styrene. It also improved the rheological properties, thermal stability, and mechanical properties of the resin.
Article
Polymer Science
F. Shahkarami, N. Moini, K. Kabiri, F. Piri, A. Jahandideh
Summary: Multitask star-shaped oligoaniline (S-TAH), synthesized through a three-step microwave irradiation process, showed excellent performance as a multitask hardener for bisphenol A-based epoxy resin. It exhibited improved thermal stability, increased char yield, and representative storage moduli in glassy and rubbery states. Furthermore, it demonstrated good electrical conductivity and can be applied in various applications such as thermal resistance anticorrosive coatings and conductive adhesives.
POLYMERS FOR ADVANCED TECHNOLOGIES
(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)
