Article
Chemistry, Multidisciplinary
Guo-Xiang Zhou, Yan-Ge Yu, Zhi-Hua Yang, De-Chang Jia, Philippe Poulin, Yu Zhou, Jing Zhong
Summary: A universal strategy for 3D printing graphene oxide (GO) complex structures with high alignment and density is proposed. The combination of direct ink writing and constrained drying allows for the compaction and alignment of GO, while maintaining the structure's uniformity through controlled shrinkage. The study also discovers a gradient of porosity naturally formed across the thickness direction at the corner, enabling the 3D printing of humidity sensitive GO-based soft robotics.
Article
Chemistry, Multidisciplinary
David Tilve-Martinez, Wilfrid Neri, Dylan Horaud, Nicolas Vukadinovic, Benoit Berton, Arnaud Desmedt, Jinkai Yuan, Philippe Poulin
Summary: Digital Light Processing (DLP) technology enables fast and high-resolution 3D printing, but it is limited to transparent resins and not suitable for printing conductive materials. In this study, a UV transparent liquid crystal graphene oxide precursor is used to generate in situ conductive particles in a photopolymerizable resin. The resin can sustain high temperature for the thermal reduction of graphene oxide into electrically conductive reduced graphene oxide particles. This method reconciles the DLP technology with the manufacturing of 3D electrically conductive objects.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Construction & Building Technology
Viacheslav Markin, Martin Krause, Jens Otto, Christof Schroefl, Viktor Mechtcherine
Summary: This article discusses experimentally determined material properties of four different printable foam concretes with densities ranging from 800 kg/m(³) to 1200 kg/m(³), including fresh-state and hardened-state properties relevant to 3D printing. The possible applications of foam concrete in 3D-printing were assessed based on its economic, sociological, and ecological impacts.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Construction & Building Technology
Kirubajiny Pasupathy, Sayanthan Ramakrishnan, Jay Sanjayan
Summary: This study investigates the combination of lightweight aggregates and premade foam in foam concrete to achieve a density below 1000 kg/m3 for 3D printing applications. The introduction of combined lightweight aggregate and foam significantly improves the fresh and hardened properties of lightweight concrete. The compressive strength of 3D printed specimens containing lightweight aggregates was significantly higher compared to those without, and the pore size distribution was finer and more regular.
CEMENT & CONCRETE COMPOSITES
(2022)
Article
Chemistry, Analytical
Marco Fortunato, Luca Pacitto, Nicola Pesce, Alessio Tamburrano
Summary: Researchers have developed piezoresistive pressure sensors using 3D porous flexible open-cell foams, which can be used for health monitoring, illness prevention, and human motion detection. By controlling the shape and size of the foam through additive manufacturing, the sensors' piezoresistive response can be adjusted by varying the concentration of the infiltrated graphene nanoplatelets. The optimized grid-based structure sensors exhibit the highest sensitivity for pressures below 10 kPa.
Review
Chemistry, Analytical
Agnivo Gosai, Kamil Reza Khondakar, Xiao Ma, Md Azahar Ali
Summary: Biosensors have the potential to transform personalized medicine and environmental monitoring, with functional graphene being a popular choice for sensing material due to its ease of synthesis, high functionality, and large surface area for sensitive applications. The review highlights the current state-of-the-art biosensors based on graphene, emphasizing on the mechanism of sensing and future prospects in healthcare and environmental monitoring, particularly in additive manufacturing technologies like 3D printing.
Article
Construction & Building Technology
Weijin Wang, Zhaowen Zhong, Xin Kang, Xiongying Ma
Summary: Graphene oxide (GO) improves the compressive strength, freeze-thaw resistance, and thermal conductivity of geopolymer foam concrete (GFC). The mechanisms of GO reinforcement include providing nucleation sites, forming strong network connections, and filling pore structures. The improved GFC with GO has promising applications.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Engineering, Civil
Vuong Nguyen-Van, H. Nguyen-Xuan, Biranchi Panda, Phuong Tran
Summary: This study implements a numerical model to simulate the failure mechanisms in 3D concrete printing, and validates the model's accuracy. Sensitivity and parametric analyses reveal the influence of printing process parameters on buildability.
Article
Engineering, Multidisciplinary
Qiushi Li, Tongyu Wu, Wei Zhao, Yongxiang Li, Jiawen Ji, Gong Wang
Summary: In this study, a graphene-based flexible electronic device called LSGCN is demonstrated, which is fabricated using 3D printing and double-side laser scribing graphene techniques. LSGCN shows good stretchability and stability, making it suitable for applications in bio-energy harvesting and self-powered sensing devices.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Ceramics
Hoyeol Lee, Jin Myoung Yoo, Nandha Kumar Ponnusamy, Seung Yan Nam
Summary: Recently, 3D-printing technology has been widely used to fabricate tissue-engineered scaffolds. This study focused on the fabrication of graphene oxide (GO)-reinforced hydroxyapatite (HA)/gelatin composite scaffolds using extrusion-based 3D-printing. The printing parameters were optimized, and the overall characteristics of the composites were analyzed. The results showed that the addition of GO efficiently improved the mechanical properties of the scaffolds, suggesting the potential of using GO in bone tissue engineering.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Jhonny Azuaje, Adrian Rama, Ana Mallo-Abreu, Monica G. Boado, Maria Majellaro, Carmen R. Tubio, Ruben Prieto, Xerardo Garcia-Mera, Francisco Guitian, Eddy Sotelo, Alvaro Gil
Summary: This paper introduces a novel 3D printed metal-free graphene oxide-Al2O3 (GO-Al2O3) catalytic system, which combines the excellent catalytic effect and reaction scope of graphene oxide, the chemical stability and recyclability of the ceramic support, and the versatility and control over size of 3D printing technology, representing a significant step in the development of highly active, heterogeneous, and reusable ceramic catalysts.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Construction & Building Technology
Zhicong Deng, Zijian Jia, Chao Zhang, Zhibin Wang, Lutao Jia, Lei Ma, Xianggang Wang, Yamei Zhang
Summary: This study investigated the effects of preparation methods on 3D printing lightweight aggregate concrete (3DPLWC), successfully preparing 3DPLWC with different aggregate contents and analyzing their mechanical properties and pore structures. The results showed that the printing process led to the anisotropy of 3DPLWC, with its specific strength lower than cast counterparts. Increasing pre-wetted aggregate content in 3DPLWC contributed to decreased matrix porosity and increased circularities of matrix pores in printed specimens.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Polymer Science
Wei Yu, Zhonglue Hu, Ye Zhang, Yakuang Zhang, Weiping Dong, Xiping Li, Sisi Wang
Summary: Vinyl-functionalized graphene oxide (VGO) was used as a reactive compatibilizer in the preparation of PLA/PBAT blends. The results showed that VGO nanosheets were effective in improving the blend's compatibility and PLA crystallinity. The prepared PLA/PBAT pellets were also successfully applied to 3D printing.
Article
Polymer Science
Afsoon Farzan, Sedigheh Borandeh, Jukka Seppala
Summary: This study successfully synthesized biodegradable, conductive, solvent-free polyurethane/PEGylated graphene oxide (PU/PEG-GO) composites and 3D printed them into flexible nerve conduits with different geometries using stereolithography. The composite containing 5% PEG-GO showed the highest mechanical properties and conductivity, as well as good biocompatibility and biodegradability, making it a potential candidate for peripheral nerve regeneration.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Xinhao Zhao, Baocheng Liu, Peng Pan, Zhengchun Yang, Jie He, Huayi Li, Jun Wei, Zongsheng Cao, Honghao Zhang, Jiayuan Chang, Qiwen Bao, Xin Yang
Summary: This paper presents a new ink for 3D printing supercapacitor electrodes, achieving a mass-specific capacitance of 422 F g(-1) and an energy density of 19.35 Wh kg(-1). The extrusion 3D printing method allows for practical applications like powering LEDs and charging a mobile phone, providing an economical and efficient way to prepare supercapacitors with special structures for large-scale applications.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Materials Science, Ceramics
Felipe Basquiroto de Souza, Kwesi Sagoe-Crentsil, Wenhui Duan
Summary: This study utilized Debye function analysis to investigate the atomic and nanoscale structural-disorder features of calcium silicate hydrate (C-S-H), revealing that random layer rotations are a critical feature in C-S-H phases. The findings not only contribute to the construction of more accurate nanoscale models of hydrated cement, but also have potential wider application to similar complex layered structures.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Applied
Ezzatollah Shamsaei, Felipe Basquiroto de Souza, Kwesi Sagoe-Crentsil, Wenhui Duan
Summary: This study demonstrates the use of nanostructured calcium silicate hydrate (C-S-H) to fabricate hierarchically porous zinc oxide nanocomposites with high photocatalytic efficiency for the degradation of rhodamine B.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Physical
Ezzatollah Shamsaei, Felipe Basquiroto de Souza, Amirsina Fouladi, Kwesi Sagoe-Crentsil, Wenhui Duan
Summary: In this study, a mesoporous composite with high latent heat capacity, stable structure, and efficient thermal response was designed for thermal energy storage in green building constructions. The composite demonstrated high thermal storage efficiency and sustainability for building constructions.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Yanming Liu, Shu Jian Chen, Kwesi Sagoe-Crentsil, Wenhui Duan
Summary: Microstructural characterization and reconstruction (MCR) is crucial for understanding the relationship between processing, structure, and properties in materials. This study proposes a framework that mimics quantum computing to enhance the speed of reconstructions, using a deep learning algorithm to calibrate parameters. This method enables material scientists to establish meaningful links between processing, structure, and properties through simulation and data-mining techniques.
Article
Multidisciplinary Sciences
Wei Wang, Shu Jian Chen, Weiqiang Chen, Wenhui Duan, Jia Zie Lai, Kwesi Sagoe-Crentsil
Summary: Nature-inspired design motifs have been crucial in advancing materials with both strength and damage tolerance. In this study, the authors present a segmental design motif extracted from arthropod exoskeleton to create a compression-resisting lightweight mechanical metamaterial. This design motif introduces an asymmetrical rotational degree of freedom, leading to a progressive failure behavior and increased energy absorbance capacity.
NATURE COMMUNICATIONS
(2022)
Article
Construction & Building Technology
Afifa Tamanna, Ezzatollah Shamsaei, Robert Urquhart, Hoan D. Nguyen, Kwesi Sagoe-Crentsil, Wenhui Duan
Summary: This research developed an empirical model using gene expression programming (GEP) to predict residual solvent (alpha) in sprayed seal performance assessment. The model showed a good correspondence with experimental results and can save time and expenditure in laboratory testing.
ROAD MATERIALS AND PAVEMENT DESIGN
(2023)
Article
Construction & Building Technology
Zhao Qing Tang, Hao Sui, Felipe Basquiroto de Souza, Kwesi Sagoe-Crentsil, Wenhui Duan
Summary: In this paper, a surface functionalisation approach was used to modify the surface functional groups of GO by APTS, providing repulsive effects to better isolate GO nanosheets from each other, while the accelerating effects of GO compensated for the retardation effects of APTS. The GO-APTS structure was stable in the highly alkaline sodium silicate environment and significantly improved the dispersion of nanosheets in the geopolymer composite. Furthermore, APTS enabled the nucleation and reinforcing effects of GO. The GO-APTS-cement samples demonstrated better workability, transport properties, and mechanical strength compared to reference and pure GO samples, indicating the effectiveness and potential of silane-functionalised GO in geopolymer systems.
CEMENT & CONCRETE COMPOSITES
(2023)
Article
Engineering, Manufacturing
Jiawei Ren, Shu Jian Chen, Yiping Qiao, Wei Wang
Summary: Structural hierarchy is crucial for manufacturing multiscale particle-based composite materials. A new method utilizing 3D-printed microscaffolds to generate scalable hierarchical structures in concrete has been developed. This method effectively improves the energy absorption capacity of the lightweight composite material by 63.93% compared to traditional lightweight concrete, while reducing the consumption of cementitious material by up to 14% and minimizing scaffold usage. The application of this method has the potential to enhance material performance and efficiency in medical and construction applications involving multiscale particle-based materials such as dental cement and bone implant materials.
3D PRINTING AND ADDITIVE MANUFACTURING
(2023)
Article
Construction & Building Technology
Hao Sui, Wei Wang, Junlin Lin, Zhao Qing Tang, Der-Shen Yang, Wenhui Duan
Summary: Understanding the microstructure of LC3 is crucial for controlling cement properties. This study employs deep learning and image-based characterisation to investigate the spatial correlation and pore morphology of LC3, revealing its microstructural refinement effects. The findings highlight the lower probability of connected pores but higher likelihood of connected solid particles in LC3 compared to OPC, as well as a smaller RVE size and increased packing density. The analysis also demonstrates a higher hydration rate and pore deformation in LC3. These results provide insights into the microstructural mechanisms of LC3 and offer a foundation for localised characterisation of cementitious materials.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Zunaira Naseem, Ezzatollah Shamsaei, Kwesi Sagoe-Crentsil, Wenhui Duan
Summary: This study investigates the effects of graphene oxide (GO) on cement hydration phases and polymer film formation in GO-reinforced polymer-modified cement (GOPMC) composites. The results show that GO has a significant impact on the chemical structure of cement and is directly involved in the early-age hydration kinetics. The GOPMC composite exhibits higher heat flow and tensile strength compared to the reference composite.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Chemistry, Physical
Yubing Ouyang, Shujian Chen, Kwesi Sagoe-Crentsil, Wenhui Duan
Summary: This study used molecular dynamic simulation to investigate the formation process of nanoscale capillary bridges. The results showed that classical capillary theory breaks down at the nanoscale and observed oscillation in the adhesive force. Additionally, a non-linear correlation between adhesive force and saturation degree was identified.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
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)