Article
Materials Science, Multidisciplinary
Dariusz Bochenek, Przemyslaw Niemiec, Artur Chrobak, Piotr Guzdek
Summary: This paper analyzes the influence of hard and soft admixture on the functional properties of multiferroic ceramic composites. Two composite materials were synthesized via solid-state reaction route, with PZT-type materials as the ferroelectric component and nickel-zinc ferrite as the magnetic component. It is found that the type of doping (soft vs hard admixture) has significant effects on the dielectric, ferroelectric, electromechanical, magnetic, and magnetoelectric properties of the composites. PZT with a soft admixture shows advantages in terms of effective polarization and high magnetoelectric effect, while PZT with a hard admixture demonstrates better stability of physical parameters.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Physical
A. Plyushch, D. Lewin, A. Sokal, R. Grigalaitis, V. V. Shvartsman, J. Macutkevic, S. Salamon, H. Wende, K. N. Lapko, P. P. Kuzhir, D. C. Lupascu, J. Banys
Summary: Bulk BaTiO3-xCoFe2O4 (x = 0.1 - 0.6) magnetoelectric composites with high purity and excellent dielectric and magnetic properties were prepared using the phosphate bonded ceramics approach. The dielectric properties were influenced by composition-dependent relaxations and anomalies at different frequencies, while the magnetic properties were limited by the size of CoFe2O4 particles. The measured direct magnetoelectric coupling coefficient was higher than that of conventionally sintered ceramics and comparable to that of core-shell structures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
S. Satapathy, Golla Prudhvi, Azam Ali Khan, Pratik Deshmukh, Anju Ahlawat, K. R. S. Preethi Meher, A. K. Karnal
Summary: MFO/BCZT ceramic composite exhibits multiferroic and magnetoelectric coupling properties with proper surface interaction, showing potential for device applications at room temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Fanqiang Lin, Chongsheng Wu, Qisheng Yin, Yuanming Lai, Yingli Liu
Summary: In this study, the effect of Ba substitution on the spiral magnetic structure and magnetoelectric effect in polycrystalline Z-type hexaferrites was systematically investigated. The results showed that Ba substitution significantly improved the magnetoelectric coupling coefficient and extended the magnetic field range for the appearance of magnetoelectric signals. These improvements were attributed to the decrease of Fe-O-Fe bond angle, reduction of cone angle in the transverse conical spin structure, and change in the distribution of magnetic Co ions caused by Ba substitution.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Instruments & Instrumentation
Scott Newacheck, Anil Singh, George Youssef
Summary: This study quantitatively analyzed the magnetoelectric particulate composite material system and revealed the main mechanisms responsible for the below-optimal performance of this class of materials. The experimental characterization of the composite demonstrated its multifunctional properties and quantified the interrelationship between composition and performance. The study found that the addition of magnetic particles improved the mechanical and electrical properties of the composite, but particle mobility had a detrimental effect on the overall magnetoelectric coupling performance.
SMART MATERIALS AND STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Dariusz Bochenek, Artur Chrobak, Grzegorz Dercz
Summary: The research presents a new method for producing multiferroic ceramic composites by connecting two ferroelectric ceramic materials, PBZrTiO3-based (P) and BaTiO3 (B), and zinc-nickel ferrite (F) in equal amounts. The goal of the experiment is to enhance the ferroelectric performance of the composites through pressureless sintering. Three different BPF composites with varying ferroelectric/magnetic content (95/05, 90/10, 85/15) were obtained. The crystal structure, electrical behaviors, dielectric, ferroelectric, and magnetic characteristics of the composites were extensively studied. The results demonstrate that using two ferroelectric materials improves the ferroelectric properties of the composites, with high saturation in ferroelectric hysteresis loops and high electrical breakdown strength.
APPLIED MATERIALS TODAY
(2023)
Article
Chemistry, Physical
Manish Kumar, Arvind Kumar, Subhash Sharma, Ritesh Kumar Chourasia, Rakesh Kumar, Samiksha Dabas, Abhishek Singh, Avneesh Anshul
Summary: Multiferroic BiFeO3-NiO (BFO-NiO) nanocomposites were synthesized using sol-gel route and characterized for their multiferroic-magnetoelectric properties. The composite exhibited enhanced magnetism and exchange bias effect due to the interactions between antiferromagnetic and ferromagnetic exchange couplings. The temperature-dependent magnetic measurements showed a transition from superparamagnetic behavior to quantum superparamagnetic state at low temperature. The nanocomposites demonstrated considerable suitable for various device applications such as information storage, magnetic random access memory, and bio-sensing.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Sukhendu Sadhukhan, Abhik S. Mahapatra, Ayan Mitra, Pabitra K. Chakrabarti
Summary: Nanocrystalline holmium orthoferrite (HoFeO3) was synthesized using the chemical sol-gel technique. Structural investigation and magnetization measurements revealed its multiferroic behavior, establishing its candidacy for multiferroic applications in M-E devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Jiahua Min, Shuhan Zheng, Jingwen Gong, Xiyu Chen, Fei Liu, Yunlong Xie, Yongjun Zhang, Zhen Ma, Meifeng Liu, Xiuzhang Wang, Hong Li, Jun-Ming Liu
Summary: Researchers conducted a systematic study on garnet Mn3Al2Ce3O12, revealing the formation of long-range antiferromagnetic order below the Néel temperature, as well as the observation of an electric polarization effect driven by a magnetic field. Stable control of polarization was achieved under high magnetic fields.
INORGANIC CHEMISTRY
(2022)
Article
Mechanics
Zhi-Ming Hu, Yu Su, Jackie Li
Summary: In this paper, a two-level micromechanics model is established to study the nonlinear magnetoelectric effects of multiferroic composites; By treating the ferromagnetic and ferroelectric materials in two phases, the overall effective properties of the composite are calculated and analyzed; The feasibility of the theoretical model is verified by comparing the results with existing experimental data.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Siqi Zhong, Yulin Zhang, Guiyun Sun, Heng Wu, Hong Ao, Wenchuan Li, Rongli Gao, Xiaoling Deng, Wei Cai, Zhenhua Wang, Chunlin Fu, Xiang Lei, Gang Chen
Summary: In this study, CoFe2O4 (CFO) and Ba0.8Sr0.2TiO3 (BST) particles were prepared using chemical co-precipitation and sol-gel methods respectively. The particles were then surface modified and the CFO-BST composite liquid was prepared by adding CFO: BST = 1:1 to the insulating base solution. XRD results confirmed the successful synthesis of pure phase CFO and BST particles. The maximum dielectric constant and residual polarization intensity were observed at low frequency (200 Hz) after 30 hours. However, the rates of change of dielectric constant and ferroelectricity under the influence of a magnetic field showed an initial increase followed by a decrease. At 2 hours, the maximum rates of change of magnetic dielectric response (3.15%) and magnetoelectric response (256.4%) were obtained, along with a coupling coefficient of 8.34 V/(cm Oe), which is several orders of magnitude higher than that of conventional ceramics, indicating potential applications.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Materials Science, Ceramics
Wei Wang, Changan Wang, Pengzheng Li, Jin Li, Jianbiao Xian, Kai Cheng, Chung Ming Leung, Min Zeng
Summary: The study investigated the magnetodielectric and magnetoelectric effects of (Fe1-xZnx)(2)Mo3O8 single crystals, revealing sharp MD effect in FMO and modulated magnetization M by electric field E. The ME response to Zn2+ dopants showed different behavior at two temperature ranges in (Fe0.95Zn0.05)(2)Mo3O8.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Manoj Mohan, Imaddin A. Al-Omari, Salim H. Al-Harthi, Myo T. Z. Myint, Bibin Jacob, K. C. Dhanyaprabha, Hysen Thomas
Summary: The kinetics of magnetoelectric coupling in bismuth ferrite with the substitution of calcium ions was investigated. The study explained the resulting properties in terms of chemical pressure caused by the substituent ion and found that calcium substitution reduced the oxygen vacancies. Two critical substitution concentrations were identified for the ferroelectric and magnetoelectric properties. The study suggests that a calcium concentration between 10% and 20% can be optimized to obtain good electrical and magnetoelectric coupling properties. The magnetic properties were also modified favorably, and a coupled antiferromagnetic and weak ferromagnetic ordering was observed.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Minsoo Kim, Donghoon Kim, Buse Aktas, Hongsoo Choi, Josep Puigmarti-Luis, Bradley J. Nelson, Salvador Pane, Xiang-Zhong Chen
Summary: This study presents flexible magnetoelectric (ME) oxide composite (BaTiO3/CoFe2O4) thin film nanostructures with distinct ME coupling coefficients. These ceramic nanostructures exhibit flexible behavior and can be transferred onto a stretchable substrate. The ceramic films possess high ME coefficients and exhibit tunable ME coupling via mechanical stretching. The study suggests potential applications of ceramic ME composites in micro/nanoelectromechanical systems and soft robotic devices.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Inorganic & Nuclear
Ryan Stampfli, Nha Uyen Huynh, George Youssef
Summary: This study investigated the long-term performance of a multiferroic composite structure, revealing a significant degradation in the magnetoelectric response, possibly due to a reduction in the bonding interface quality. The increase in temperature at the onset of loading was associated with the induced oscillatory piezoelectric strain.
Article
Materials Science, Ceramics
Xiang Yu, Lichen Wang, Ruoshui Liu, Ningfang Zhou, Zhiyi Xu, Huayang Gong, Tongyun Zhao, Jirong Sun, Fengxia Hu, Baogen Shen
Summary: We synthesized Sr1-xNdxFe12-yCoyO19 (x = 0-0.25, y = 0-0.1) using a conventional ceramic route and analyzed the crystal structures using X-ray diffraction. With increasing Nd3+ and Co2+ contents, lattice constant a increases, while lattice constant c decreases. The magnetic properties are improved when x = y = 0.1 (equal co-substitution), and further improved when x is increased (unequal co-substitution), reaching optimum values of Ms = 76.4 emu/g and Hc = 5115 Oe due to the occupation of the 2a site by divalent Fe2+. The occupancies of Co2+ and Fe2+ are further verified using Raman spectroscopy.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Applied
Chunyan Zhang, Jin Miao, Lin Guo, Tao Tan, Wei Cai, Xiang Lei, Yanrui Li, Zhenhua Wang
Summary: Photocatalysis technology, as an environmentally friendly technology, has great potential in the fields of photoelectric energy and environmental pollutants treatment. Perovskite materials, with narrow band gap, high quantum efficiency, and high carrier mobility, have attracted much attention as photocatalysts. However, the electron-hole separation rate for a single perovskite is still low. In this study, a CsPbBr3/UiO-66 composite photocatalyst was prepared using a heterojunction strategy, which exhibited excellent photocatalytic performance due to the efficient Z-scheme charge migration mechanism.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Jie Wang, Gang Chen, Xue Bai, Chao Chen, Zixuan Zhang, Zhengtang Su, Zhijun Zhou, Fei Chen, Yilong Ma, Wei Cai, Rongli Gao, Chunlin Fu
Summary: The microwave absorbing properties of hexagonal barium ferrites (BaM) were studied by using an innovative hydrothermal method with different mineralizers. The crystal structure, morphology, magnetoelectric properties, and microwave absorption properties of BaM were systematically investigated. BaM synthesized with KOH mineralizer showed enhanced electromagnetic wave absorption performance, with a minimum reflection loss (RLmin) of -17.59 dB at 13.2 GHz and an effective absorption bandwidth of 3.2 GHz (11.6-14.8 GHz). This study provides an effective method to enhance the microwave absorption properties of BaM and suggests its potential engineering applications for 5G communication.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
Jiahua Li, Jizhuang He, Sisi Li, Yin Ren, Ke Ding, Shulin Xing, Yunfei He, Rongli Gao, Chunlin Fu
Summary: In this study, a TiO2/BFO core-shell nanowire array structure was constructed to address the low photoelectric conversion efficiency problem of BiFeO3 (BFO)-based photovoltaic (PV) devices. The TiO2/BFO core-shell nanowire arrays, prepared by hydrothermal and sol-gel methods, exhibited significantly enhanced light absorption performance and improved conversion efficiency of 0.1177% compared to previously reported BFO-based ferroelectric photovoltaic (FEPV) films. The intrinsic mechanism of PV enhancement was elucidated by analyzing optical absorption, carrier lifetime, and energy band structure, demonstrating the potential applications of transport material/ferroelectric material core-shell nanowire array structures in PV devices.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Siqi Zhong, Yulin Zhang, Guiyun Sun, Heng Wu, Hong Ao, Wenchuan Li, Rongli Gao, Xiaoling Deng, Wei Cai, Zhenhua Wang, Chunlin Fu, Xiang Lei, Gang Chen
Summary: In this study, CoFe2O4 (CFO) and Ba0.8Sr0.2TiO3 (BST) particles were prepared using chemical co-precipitation and sol-gel methods respectively. The particles were then surface modified and the CFO-BST composite liquid was prepared by adding CFO: BST = 1:1 to the insulating base solution. XRD results confirmed the successful synthesis of pure phase CFO and BST particles. The maximum dielectric constant and residual polarization intensity were observed at low frequency (200 Hz) after 30 hours. However, the rates of change of dielectric constant and ferroelectricity under the influence of a magnetic field showed an initial increase followed by a decrease. At 2 hours, the maximum rates of change of magnetic dielectric response (3.15%) and magnetoelectric response (256.4%) were obtained, along with a coupling coefficient of 8.34 V/(cm Oe), which is several orders of magnitude higher than that of conventional ceramics, indicating potential applications.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Materials Science, Ceramics
Cong Ji, Gang Chen, Jie Wang, Xue Bai, Zixuan Zhang, Chao Chen, Wei Cai, Rongli Gao, Xiaoling Deng, Chunlin Fu
Summary: In this study, <001>-oriented ternary NBT-BY-STO textured ceramics were prepared by tape casting technique. Introduction of BY reduced grain size and increased breakdown field strength, resulting in improved energy storage density. <001>-orientation engineering enhanced relaxation behavior and saturation polarization, leading to significantly increased energy storage density and efficiency. The prepared textured ceramics exhibited excellent temperature, frequency stability, and charge-discharge characteristics, making them a potential dielectric material for pulse power devices.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Mengmeng Hao, Yijing Fan, Guifen Fan, Wei Cai, Fangfang Zeng, Fei Wang, Huitao Guo, Yuxin Chen, Wenzhong Lv
Summary: This research provides a new understanding of the origin of ultra-low strain hysteresis in 76%Pb(Mg1/3Nb2/3)O3-24%PbTiO3 ceramics. Highly textured ceramics with some doping were successfully fabricated, showing a unipolar strain curve that approximately matches a straight line. The maximum hysteresis falls within 7%-11%. Mn2+ substitution for Nb5+ inhibits domain wall mobility, demonstrating a positive correlation between ultra-low strain hysteresis and domain wall damping. This work enhances the understanding of strain hysteresis and contributes to high-precision piezoelectric actuators.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Jizhuang He, Jiahua Li, Yunfei He, Yin Ren, Sisi Li, Shulin Xing, Rongli Gao, Wei Cai, Chunlin Fu
Summary: A transmission layer/ferroelectric layer/transmission layer shell-core nanowire array was constructed to improve the photoelectric conversion efficiency of bismuth ferrite (BFO). The device showed a photoelectric conversion efficiency of 0.93%, which is significantly higher than previous reports on BFO-based photovoltaic devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Engineering, Electrical & Electronic
Chen Chen, Siqi Zhong, Guiyun Sun, Yulin Zhang, Yiwen Ding, Keju Ren, Huan Li, Rongli Gao, Xiaoling Deng, Wei Cai, Zhenhua Wang, Chunlin Fu, Xiang Lei, Gang Chen
Summary: Composite multiferroic materials, due to their unique magnetoelectric coupling effect, have significant potential in multifunctional devices. This study presents a novel composite multiferroic material system called multiferroic fluids, which are created by dispersing multiferroic particles in an insulating base fluid and exhibit a strong magnetoelectric coupling effect under external fields. The magnetoelectric coupling effect is achieved through the arrangement of multiferroic particles into chain-like structures under magnetic or electric fields, resulting in induced polarization. Based on their magnetoelectric and rheological properties, multiferroic fluids are believed to have potential applications in various fields such as magnetoelectric storage, sensors, and photovoltaics, but further research is needed.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Zhiqiang Liu, Qianwei Zhang, Wei Cai, Gang Chen, Xiuqi Li, Rongli Gao, Xiaoling Deng, Chunlin Fu
Summary: The introduction of BCZT and the use of templated grain growth method have successfully improved the piezoelectric properties of KNN-BCZT ceramics. The (001) crystallographic texture in the ceramics leads to superior ferroelectric and piezoelectric properties compared to randomly oriented samples. This research provides an important strategy for designing KNN-based lead-free ceramics with superior piezoelectric properties.
Article
Engineering, Electrical & Electronic
Rui Huang, Xiaoxue Liu, Xue Yang, Zeping Rao, Wei Cai, Zhenhua Wang, Rongli Gao, Gang Chen, Xiaoling Deng, Xiang Lei, Chunlin Fu
Summary: In this study, a CuBi2O4/AgNbO3 Z-scheme heterojunction was designed and fabricated using heterojunction construction and polarization engineering. The outstanding piezo-photocatalytic performances of the CuBi2O4/AgNbO3 heterojunction were demonstrated, indicating its potential in organic pollutant degradation.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Engineering, Environmental
Rui Huang, Wei Cai, Heng Zhang, Zhenhua Wang, Qin Zhang, Rongli Gao, Gang Chen, Xiaoling Deng, Xiang Lei, Jiling Dong, Xiaoyan Liu, Chunlin Fu
Summary: The superior piezo-photocatalytic performances of KNbO3-based materials were achieved by employing strategies such as heterojunction construction and polarization engineering, which enhanced photo-induced carrier separation and migration. A KNbO3/WO3 type-II heterojunction was created by impregnation-calcination method, exhibiting outstanding piezo-photocatalytic performance. Compared to individual KNbO3 and WO3, the KNbO3/WO3 composite showed better degradation performance for RhB solution under visible light irradiation. The work also confirms the synergistic effects of heterojunction construction, polarization engineering, and ultrasonic vibration in KNbO3/WO3 composite for enhanced piezo-photocatalysis.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
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)
