Article
Materials Science, Multidisciplinary
Mingfu Liu, Cunsheng Zhang, Haibin Zhao, Liang Chen, Guoqun Zhao
Summary: To investigate the complexities of microstructures at the Al/Ti interface, Al/Ti/Al sandwich structures were produced and analyzed using various microscopy techniques. The results show that only TiAl3 is generated at the interface, with the interlayer thickness and TiAl3 grain size increasing with temperature. Different microstructures are observed at different temperatures, and unexpected microvoids, amorphous layers, and oxides are detected, hindering the growth of the interlayer. Misfit dislocations and lattice distortions are observed at the nanoscale. The formation of Ti-Al solid solution structures on the 3D Ti/TiAl3 interface is considered a novel strategy for enhancing the strength-plasticity synergy of composite structures.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Applied
Xiaoyan Li, Xinsheng Niu, Yaowei Chen, Kai Yuan, Wenjun He, Shengbing Yang, Tingting Tang, Deng-Guang Yu
Summary: Chitosan-functionalized nanosilica was electrosprayed on a spin-coated base layer to form a composite coating with a micro-nano protruding surface, showing good antibacterial properties and sustained release effect. Nanosilica with uniform size was prepared by sol-gel method and coated with quaternized chitosan. The composite coating exhibited a unique micro-nano surface structure and the contact sterilization of chitosan quaternary ammonium salt played a synergistic effect, resulting in good sterilization effect on drug-resistant Staphylococcus aureus and controlled sustained release of quaternized chitosan.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Engineering, Multidisciplinary
Mingfu Liu, Cunsheng Zhang, Zijie Meng, Guoqun Zhao, Liang Chen
Summary: In this study, the element diffusion behavior, TiAl3 nucleation mechanism, and atomic-scale structure at the Al/Ti interface in Al/Ti composite structures were systematically investigated using various material characterization methods. It was found that increasing annealing temperature led to growth in TiAl3 grain size, accelerated diffusion rates of Al and Ti, and changes in interlayer thickness. Additionally, the nucleation density of TiAl3 at the Ti/TiAl3 interface was higher than at the Al/TiAl3 interface. An increase in annealing temperature resulted in the transformation of the incoherent Al/TiAl3 interface to the semi-coherent one.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Mingfu Liu, Cunsheng Zhang, Zinan Cheng, Zhenyu Liu, Liang Chen, Guoqun Zhao
Summary: In this study, a novel extrusion die is developed to embed continuous Ti wire into aluminum alloy, resulting in an extruded composite bar. The interface structure, elemental diffusion, and mechanical characteristics are investigated using various material characterization methods. The presence of three-dimensional amorphous regions and nanocrystalline Al layers, as well as the precipitation of Mg-/Si-enriched clusters, are observed. The annealing time influences the grain size and dislocation density of TiAl3. Additionally, different nanoscale TiAl3 grains and a nanoscale layer are detected at different interfaces. The extruded composite bar exhibits a remarkable strength-ductility balance, providing a new approach for aluminum profile development.
MATERIALS & DESIGN
(2023)
Article
Nanoscience & Nanotechnology
Jian Liu, Nan Lu, Jie Guan, Yaowu Hu
Summary: This study introduces diversified strain modes through nano-twist manufacturing by laser shock process, providing a convenient fabrication process for strain engineering and twistronics fields.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Lili Cao, Bingwei Luo, Hongli Gao, Min Miao, Tao Wang, Yuan Deng
Summary: The research focuses on the wettability of materials used in various technological domains and the design of surfaces to provide the required surface free energy and simplify the interfacial structure. Different Cu films with controllable surface wettability and a range of contact angles were fabricated. The structure-induced wettability played a key role in tuning semiconductor and metal interfacial stress and simplifying the interfacial structure, and the Cu films showed promising potential as electrodes.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Review
Chemistry, Multidisciplinary
R. Gayathri, C. S. Suchand Sandeep, C. Vijayan, V. M. Murukeshan
Summary: A disordered photonic medium refers to a medium where scatterers are randomly distributed, causing multiple scattering events and random walk-like propagation of light. Micro- and nano-structured disordered photonic media provide platforms for enhanced light-matter interaction, leading to coherence-tunable, quasi-monochromatic lasing emission known as random lasing in the presence of an appropriate gain medium. This paper discusses the fundamental physics of light propagation in micro- and nano-scale disordered structures, explores the random lasing phenomenon, and reviews recent advancements and potential applications of such random lasers in biomedical imaging and biosensing.
Review
Nanoscience & Nanotechnology
Yingjie Zhao, Xing Yin, Pengwei Li, Ziqiu Ren, Zhenkun Gu, Yiqiang Zhang, Yanlin Song
Summary: Multifunctional photodetectors play a crucial role in the development of optical communication technology and emerging fields of artificial intelligence. However, the current implementation of these detectors faces challenges due to their large size and complex structure. In contrast, perovskite materials have shown significant progress in the field of multifunctional photodetectors, thanks to their diverse crystal structures and excellent optoelectronic properties. This review provides an overview of perovskite materials, their manipulation techniques, and the working mechanism of multifunctional photodetectors. It also highlights the fabrication strategies and advancements of multifunctional perovskite photodetectors, including polarized light detection, spectral detection, angle-sensing detection, and self-powered detection. Finally, it presents the existing challenges and future perspectives for the development of multifunctional detectors.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Physical
Yanan Liu, Ye Ding, Jichang Xie, Mingjun Chen, Lijun Yang, Xun Lv, Julong Yuan
Summary: This study investigates the laser-induced periodic surface structure (LIPSS) of monocrystalline silicon (Si) under fs laser irradiation and identifies the presence of an amorphous silicon layer, a transition layer, and an unaffected Si layer. The phase transition mechanism of Si under fs laser is found to be amorphous transition. A numerical model is established to describe the interaction between fs laser and Si, providing insights into the atomic-scale fs laser processing of Si and potential applications in treating other semiconductor materials.
Article
Materials Science, Multidisciplinary
Tong Chen, Wenjun Wang, Aifei Pan, Lei Hu, Xuesong Mei
Summary: This study investigates the optical properties of different single-scale surface structures fabricated through laser micro/nano-processing. The anti-reflection mechanisms are visually revealed and a novel method for preparing multi/scale structures is proposed. The results demonstrate improved absorption efficiency and infrared anti-reflection performance.
Article
Chemistry, Multidisciplinary
Zihan Zhang, Jiakang Zhou, Yuqi Ren, Weihan Li, Sheng Li, Nianyao Chai, Zhongle Zeng, Xiangyu Chen, Yunfan Yue, Ling Zhou, Yibing Cheng, Shuxin Li, Xuewen Wang
Summary: In this study, a superhydrophobic surface with micro-nano structures was created on CFRP using femtosecond laser processing. The transition from hydrophilic to superhydrophobic CFRP was achieved. The optimized superhydrophobic CFRP showed excellent anti-icing properties without deteriorating its mechanical strength. This research is of great significance for aircraft passive deicing technology.
Article
Chemistry, Physical
Tsukasa Akasaka, Miho Tamai, Yoshitaka Yoshimura, Natsumi Ushijima, Shinichiro Numamoto, Atsuro Yokoyama, Hirofumi Miyaji, Ryo Takata, Shuichi Yamagata, Yoshiaki Sato, Ko Nakanishi, Yasuhiro Yoshida
Summary: The surface topography of a material can influence osteoclast activity. Pillar-shaped patterns are the most effective in inducing osteoclastogenesis. The generation of osteoclasts can be controlled by designing surfaces with specific morphologies.
Review
Engineering, Manufacturing
Zixuan Wu, Xiaosong Jiang, Hongliang Sun, Zhenyi Shao, Rui Shu, Yali Zhang, Yongjian Fang
Summary: The structure and properties of metal/oxide interfaces are significant for achieving favorable mechanical and functional properties in metal matrix composites. However, there are inherent differences in structure and properties between metal and oxide. In order to obtain metal/oxide interfaces with promising properties, it is important to understand interfacial interaction and bonding mechanisms at atomic and electronic levels, and to utilize numerical simulation effectively.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Review
Chemistry, Physical
Hongtao Gao, Yiming Jian, Yuying Yan
Summary: The formation and accumulation of ice have negative effects on commercial surfaces and human lives. Increasing surface hydrophobicity decreases ice adhesion strength, and superhydrophobic surfaces can be created by combining low surface free energy and high surface roughness. Inspired by bio-mimetic studies on biological surfaces, artificial bio-inspired superhydrophobic surfaces have been widely designed and constructed, with both superhydrophobic and anti-icing/icephobic properties.
Article
Construction & Building Technology
Xinxing Zhou, Taher Baghaee Moghaddam, Meizhu Chen, Shaopeng Wu, Sanjeev Adhikari, Fusong Wang, Zepeng Fan
Summary: This study investigates the impact of moisture on the asphalt-aggregate bond, simulates moisture distribution at the nano-level, and explores the effects of hydraulic pressure, aggregate type, and humidity on moisture diffusion. Molecular dynamic simulations are used to calculate diffusion coefficients, radial distribution functions, contact angles, and free volumes. Density function theory is utilized to measure polarizability of moisture in the asphalt-aggregate interface, revealing the competitive interaction between asphalt, moisture, and ions in the asphalt-water-aggregate interface.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Multidisciplinary
Keyu Zhu, Xitao Zheng, Jing Peng, Jiaming Sun, Ruilin Huang, Leilei Yan
Summary: This paper discusses the influence of multiple impacts on the compression strength of honeycomb sandwich structures with composite face sheets. It is found that the size of the impactor affects the turning point of the compression strength. Additionally, high impact energy leads to damage in the bottom face sheet and reduces the overall compression strength.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Danqian Wang, Yanfei Yue, Jueshi Qian
Summary: Magnesium Potassium Phosphate Cement (MKPC) as a binder for steel rebars shows improved corrosion resistance when subjected to carbonation, due to the increase in pH and the formation of a more protective oxide film.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Zhibin Li, Wenyu Wang, Pengcheng Xue, Xingyu Wei, Jian Xiong
Summary: This work proposes a design approach and manufacturing method for carbon fiber reinforced plastic (CFRP) corrugated sandwich truncated cones (CSTC) to improve their anti-debonding ability and ensure reliability. The study establishes theoretical models for CSTCs' stiffness and failure modes, which are verified through experiments and finite element analysis (FEA). The research reveals the effect of geometric parameters on failure modes and performs an optimal design for CSTC structures. The findings have significant implications for the design and application of lightweight CSTCs in constructions, such as launch vehicle adapters.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Mingyu Zhang, Lei Chu, Jiahua Chen, Fuxun Qi, Xiaoyan Li, Xinliang Chen, Deng-Guang Yu
Summary: This review summarizes the different structures and construction methods of fibrous membranes with asymmetric wettability. It also reviews the biological applications of these membranes and suggests future challenges.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
E. Mofakhami, L. Gervat, B. Fayolle, G. Miquelard-Garnier, C. Ovalle, L. Laiarinandrasana
Summary: This study investigates the effects of fibre concentration on the mechanical response of welded glass-fibre-reinforced polypropylene (GF-PP). Experimental observations reveal a significant reduction in weld ratio, up to 60%, indicating a decreased strength compared to the bulk material. Increasing fibre content in the welded material results in a decrease in stress at break and strain at the maximum stress. The use of DIC technique and X-ray microtomography further confirms the localized strain amplification in the welded zone due to the significant increase in fibre density.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Emad Pourahmadi, Farjad Shadmehri, Rajamohan Ganesan
Summary: This research compares the mechanical properties of laminates manufactured using automated fiber placement and conventional autoclave curing methods. The results show that laminates manufactured using automated fiber placement have a lower interlaminar shear strength compared to laminates reconsolidated using autoclave curing. A finite element simulation method is proposed to quantitatively analyze these differences.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Johnny Jakobsen, Benny Endelt, Fahimeh Shakibapour
Summary: This study proposes a new bolted/pinned joining method for composite applications, which improves load transfer by introducing a patch-type reinforcement. Experimental results demonstrate significant improvements in both static and fatigue load conditions compared to existing methods. Finite element simulations highlight the advantage of this method, as it creates a more efficient load-transferring mechanism through different stress distributions.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Gisele G. Cintra, Janine D. Vieira, Daniel C. T. Cardoso, Thomas Keller
Summary: This paper proposes a novel approach to assess multi-crack behavior in layered fiber-polymer composites. The generated Compliance and R-curves provide useful insights into understanding the multiple delamination process and allow for separate evaluation of strain energy release rate (SERR) for each crack. The developed cohesive zone model successfully simulates the failure process zone of three parallel cracks, showing good agreement between the numerical model and experimental results.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Renil Thomas Kidangan, Sreedhar Unnikrishnakurup, C. Krishnamurthy, Krishnan Balasubramaniam
Summary: The induction heating process can accurately identify fiber orientation and stacking order, making it a valuable tool for large-area inspection and quality control in manufacturing fiber-reinforced composites.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Sungjun Hwang, Yousoo Han, Douglas J. Gardner
Summary: Bleached Kraft pulp, unbleached Kraft pulp, and old corrugated cardboard pulp are suitable for producing cellulose nanofibril suspensions. Spray drying is a fast, simple, cost-effective, and scalable drying method. Spray-dried cellulose nanofibrils can be used as reinforcing materials in polypropylene matrices. The particle size of cellulose nanofibrils affects the material properties.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Mehdi Mahdavi, Abbas Zolfaghari
Summary: This study aims to improve the recovery forces of shape memory polymers (SMPs) through material extrusion additive manufacturing. By using glass fiber (GF) as reinforcement and manufacturing multi-layer composite specimens, it was found that PLA with 6.62% GF exhibited the best recovery force, which was further optimized through annealing heat treatment.
COMPOSITES PART B-ENGINEERING
(2024)
Review
Engineering, Multidisciplinary
Xiang Ao, Antonio Vazquez-Lopez, Davide Mocerino, Carlos Gonzalez, De-Yi Wang
Summary: The vulnerability of natural fibers to heat and fire poses a significant challenge for their substitution of traditional fiber reinforcements in composite materials. Natural fiber/polymer composites (NFCs) are regarded as potential candidates for engineering applications due to their environmental friendliness and low-impact sourcing. Thus, appropriate approaches need to be implemented to enhance the fire safety of NFCs. This review summarizes and discusses the latest understanding of flammability and thermal properties of natural fibers, with a special focus on their interaction with polymer matrix in fire behavior. Additionally, the latest developments in flame-retardant approaches for NFCs are reviewed, covering both flame retardancy and fire structural integrity. Finally, future prospects and perspectives on fire safety of NFCs are proposed, providing insights into further advancements of NFCs.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Cheng Wang, Siqi Huo, Guofeng Ye, Bingtao Wang, Zhenghong Guo, Qi Zhang, Pingan Song, Hao Wang, Zhitian Liu
Summary: The demand for multifunctional, transparent epoxy resin with superior dielectric, mechanical, and fire-safety performances is increasing in modern industries. Researchers have developed an epoxidized, phosphaphenanthrene-containing poly(styrene butadiene styrene) (ESD) for advanced fire-safe epoxy resin, which maintains high transparency and improves UV-blocking property. The addition of 10 wt% ESD results in improved mechanical properties, decreased dielectric constant and loss, and outperformance compared to other fire-safe epoxy resins. This research provides an effective method for developing multifunctional flame-retardant epoxy resin.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Bo Pang, Heping Zheng, Zuquan Jin, Dongshuai Hou, Yunsheng Zhang, Xiaoyun Song, Yanan Sun, Zhiyong Liu, Wei She, Lin Yang, Mengyuan Li
Summary: This study develops an internal superhydrophobic material (ISM) using waste denitrification fly ash, which maintains stable hydrophobicity under harsh conditions of use and does not rely on expensive fluor-based surface modifications. The synthesized ISM has excellent matrix strength, strong waterproof properties, and retains superhydrophobicity even at damaged or friction interfaces.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Meirbek Mussatayev, Qiuji Yi, Mark Fitzgerald, Vincent K. Maes, Paul Wilcox, Robert Hughes
Summary: Real-time monitoring of carbon fibre composites during Automated Fibre Placement (AFP) manufacturing remains a challenge for non-destructive evaluation (NDE) techniques. This study designed a directional eddy-current (EC) probe to evaluate the detectability of out-of-plane wrinkles. Experimental evaluations and finite element modeling were conducted to better understand the relationship between eddy-current density and defect detection. The findings suggest that the probe configuration with an asymmetric driver coil and differential pickup coils shows the best capability for wrinkle detection.
COMPOSITES PART B-ENGINEERING
(2024)