Article
Engineering, Multidisciplinary
Gang Wang, Dawei Li, Tingting Liu, Changdong Zhang, Yi Min Xie, Wenhe Liao
Summary: This study presents a novel approach for developing modular and lightweight microwave absorbing metastructure using additive manufacturing technology. The metastructures are manufactured using a composite process of 2D and 3D printing, and the square ring size and thickness are adjusted to increase absorption bandwidth. A multilayer stacking method is utilized for modular design and the structure shows excellent absorption characteristics.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Physics, Multidisciplinary
Meng-Zhou Chen, Liu-Ying Wang, Gu Liu, Chao-Qun Ge, Di-Chen Li, Qing-Xuan Liang
Summary: This paper investigates the microwave absorption properties of the gradient dendritic fractal metamaterial structure (GDFMs) based on carbon black and acrylonitrile-butadiene-styrene composites. The optimized metamaterial structure shows effective absorption in the frequency range of 4.5-40 GHz. The rotational-symmetry GDFMs exhibit polarization independence and wide-angle absorption performance for both TE and TM waves. It is expected that the proposed GDFMs have good application prospects in electromagnetic wave absorption.
Article
Chemistry, Physical
Zihao Liu, Yuhong Cui, Qiang Li, Qiuyu Zhang, Baoliang Zhang
Summary: In this study, ultrasonic spray technology was used to build three-dimensional MXene/MoS2 folded microspheres by one-step method. The optimal feed ratio of MXene and MoS2 was determined by comparing the absorption properties, and the material with 30% filler showed the best absorption performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Construction & Building Technology
Longjian Zhang, Kim Hung Mo, Tee How Tan, Soon Poh Yap, Foo Wei Lee, Tung-Chai Ling
Summary: In this study, a foamed phosphogypsum-based composite (FPGC) was synthesized using chemical foaming and the effects of hydrogen peroxide (H2O2) on its properties were investigated. Increasing the dosage of H2O2 resulted in more foamed pores, which reduced the mechanical strength and water resistance but improved the thermal insulation and acoustic absorption of the mixtures. Adding fibers, especially polyvinyl alcohol (PVA) fiber, enhanced the mechanical strength and water resistance of the fiber-reinforced FPGC, while slightly improving the acoustic absorption and thermal conductivity. Additionally, incorporating calcium stearate (CS) as a foam stabilizer improved the properties of fiber-reinforced FPGC, particularly when the CS content exceeded 15%.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Xiaoling Xu, Xiaoke Tian, Guangxu Bo, Xingjian Su, Jinyong Yan, Yunjun Yan
Summary: This article introduces a novel strategy of using sustainable renewable polymer foam as a lightweight porous skeleton for microwave absorption. The researchers prepared renewable microwave-absorbing foams by using a specific type of polyurethane foam and Fe3O4 nanoparticles. Through systematic characterization and analysis, it was found that the foam displayed a porous hierarchical structure and was multi-interfacial, which contributed to its excellent microwave absorption performance. The lightweight nature and broadband absorption of the foam make it a prospective material in the field of lightweight stealth materials.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Materials Science, Ceramics
Xiangong Deng, Peng Ji, Jiaqiang Yin, Yunlong Wang, Chenghao Song, Saisai Li, Yi Zhang, Xiang Ding, Songlin Ran, Haijun Zhang, Hailiang Deng
Summary: Mullite-whisker-reinforced lightweight porous materials were fabricated using fly ash and calcined bauxite as raw materials, and AlF3.3H(2)O as an additive. The addition of AlF3.3H(2)O increased the density, strength, and heat conductivity of the lightweight porous materials, while decreasing their porosity. The optimum AlF3.3H(2)O content was found to be 9 wt%, resulting in lightweight porous material samples with high flexural and compressive strengths, and maintained low heat conductivity.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Composites
Zhengxian Liu, Runbo Zhang, Shijie Wang, Weikai Zhao, Guocai Yu, Linzhi Wu
Summary: With the rapid development of electronic information technology, there is a growing need for lightweight multifunctional microwave absorption structures in aerospace and marine applications. This study designed a novel curved-walls composite honeycomb structure (CWCHS) composed of quartz fiber reinforced composite (QFRC), chopped carbon fiber/glass fiber composite felt (CCF/GFC), and carbon fiber reinforced composite (CFRC). Through multi-scale optimization, ultra-broadband absorption and superior mechanical performance were achieved. The proposed CWCHS exhibited a-10 dB absorption bandwidth of 38 GHz (2-40 GHz) and excellent angle stability within 40 degrees incidence angle.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Manufacturing
Yuhong Cui, Fei Wu, Jiqi Wang, Yabin Wang, Tariq Shah, Pei Liu, Qiuyu Zhang, Baoliang Zhang
Summary: This study utilized ultrasonic spray technology to assemble MXene nanosheets and carbon nanotubes into three-dimensional porous microspheres, which demonstrated excellent microwave absorbing properties after vacuum carbonization. With optimized mass ratio and filler content, the C-MCM achieved a minimum reflection loss of -45 dB at 10 GHz with a thickness of 2.7 mm.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Mechanics
Yuan Chen, Lin Ye, Hang Dong
Summary: In this study, a novel lightweight 3D composite lattice structure with zero coefficient of thermal expansion (CTE) was developed and investigated. A base planar composite lattice was first manufactured using continuous carbon fiber reinforced polyamide (CCF/PA) and short carbon fiber reinforced polyamide (SCF/PA) strips. A numerical model was validated and used to calculate a 3D composite lattice structure with a negative effective CTE of -0.18 x 10-6/degrees C. Parametric analysis and optimization were performed to improve the density and CTE of the lattice structure. The results showed significant improvements in both parameters, demonstrating the effectiveness of the design in achieving high thermal-dimensional stability.
COMPOSITE STRUCTURES
(2023)
Article
Chemistry, Physical
Yun Qiu, Haibo Yang, Fanfan Hu, Ying Lin
Summary: Constructing composites with heterogeneous structure and dual loss mechanism, such as CoNi@MC composites, shows great potential in designing microwave absorbers. The mesoporous structure facilitates multi-reflection of electromagnetic waves and the heterogeneous interfaces induce interface polarization, leading to multiple attenuation mechanisms for promoting electromagnetic waves conversion.
Article
Chemistry, Physical
Chunhe Wang, Chunhuan Guo, Ruonan Qin, Fengchun Jiang
Summary: In this study, a layered structure reinforced composite metal foam (LS-CMF) was designed and fabricated using metal fiber grids, stainless steel hollow spheres, and aluminum alloy through the casting method. The physical parameters, microstructure, and compression performance of LS-CMF were characterized, revealing an increased average stress plateau strength. The deformation mechanisms of CMF and LS-CMF were also discussed to provide insights into their performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Yuhong Cui, Zihao Liu, Yunfei Zhang, Pei Liu, Mudasir Ahmad, Qiuyu Zhang, Baoliang Zhang
Summary: In this study, two-dimensional Ti(3)C(2)Tx MXene nanosheets and one-dimensional Ni nanochains were assembled into three-dimensional porous MXene/Ni composite microspheres using ultrasonic spray, showing excellent electromagnetic wave absorption performance and impedance matching.
Article
Chemistry, Physical
Hai Yan, Yanyan Dong, Lei Cai, Fei Pan, Wei Lu
Summary: By using Typha's fluff as a template, researchers have constructed a 1D tubular carbon fiber/Ni nanoparticles composite that shows impressive electromagnetic wave absorption properties. The composite achieves lightweight at low filling ratio and improves impedance matching through the design of a magnetic-dielectric synergistic system. The results of this study demonstrate the broad absorption behavior of the composite material.
Article
Materials Science, Composites
Yaohui Wang, Guoquan Zhang, Huilin Ren, Guang Liu, Yi Xiong
Summary: This study proposed an interlayer-based adaptive process planning strategy for printing joints of continuous fiber reinforced composite lattice structures (CFRCLSs). By comparing with other strategies, the results showed that parts fabricated with this strategy had superior mechanical properties and significantly improved geometric accuracy. Moreover, the effectiveness of the strategy was validated with two representative metamaterial designs.
COMPOSITES COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Ailiang Chen, Guanwen Luo, Xintao Sun, Jinxi Qiao, Jiang Cao, Zuojuan Du, Bowen Li
Summary: In this study, Co3O4/reduced graphene oxide (rGO) composite materials were prepared using a simplified hydrothermal method, showing adjustable reflection loss and effective absorption bandwidth. By changing the thickness and compositional ratio, desired electromagnetic parameters and absorption effects can be achieved. The resulting composite material achieved breakthrough in microwave absorption properties, with the highest reflection loss and effective absorption bandwidth.
Article
Engineering, Manufacturing
Binbin Liao, Jianwu Zhou, Jinyang Zheng, Ran Tao, Li Xi, Tian Zhao, Ying Li, Daining Fang
Summary: This study investigated the impact of Z-pins on the low velocity impact performance of composite laminates. It was found that although Z-pins could not delay delamination initiation, they were able to enhance resistance to penetration, with 0 degrees Z-pinning showing better effectiveness in suppressing delamination damage and internal defects.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Review
Materials Science, Multidisciplinary
Xujin Yuan, Mingji Chen, Yin Yao, Xiaogang Guo, Yixing Huang, Zhilong Peng, Baosheng Xu, Bowen Lv, Ran Tao, Shenyu Duan, Haitao Liao, Kai Yao, Ying Li, Hongshuai Lei, Xu Chen, Guangfu Hong, Daining Fang
Summary: Metamaterials, utilizing unconventional properties achieved through microarchitectural designs, have become a research hotspot in electromagnetic, acoustic, mechanical, and physics fields. However, the challenge lies in integrating mechanical features and specific functions. The trend is towards incorporating multifunctional designs into single integrated structures, requiring mechanical-driven designs and structural level innovations for future advancements.
CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Hao Zhou, Xinye Cao, Chuanlei Li, Xiaoyu Zhang, Hualin Fan, Hongshuai Lei, Daining Fang
Summary: This study proposes an innovative design strategy for self-supporting lattice units that considers the geometric constraints of additive manufacturing, deriving the elastic constitutive relation using the nodal displacement method. This design strategy has been employed in the design of novel ultra-light spacecraft structures.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2021)
Article
Instruments & Instrumentation
Rongqi Zhu, Zhaoliang Qu, Shuo Yang, Daining Fang
Summary: An elevated-temperature in situ microtomography apparatus has been developed for measuring internal damage parameters under tensile loads at high temperatures up to 1000 degrees C. The apparatus utilizes a high-resolution system with a microfocus x-ray source and customized grips for conducting tensile tests. Tests on carbon-fiber-reinforced silicon-carbide matrix specimens at 800 degrees C and 1000 degrees C have been conducted to study crack propagation behavior under thermomechanical coupling loads.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2021)
Article
Materials Science, Composites
Yixing Huang, Dong Wu, Kai Zhang, Haiyang Yang, Wen Dong, Mingji Chen, Daining Fang
Summary: This study successfully demonstrates the design of a laminate metastructure with broadband and wide incident-angle microwave absorption through the use of topological optimization and genetic algorithms. The structure shows excellent absorption performance and mechanical strength in experiments.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Composites
Zhong Zhang, Hongshuai Lei, Haiyang Yang, Mingji Chen, Changxian Wang, Heng Yang, Daining Fang
Summary: The study introduces a novel impedance-type square lattice composite structure with superior load-bearing and radar absorption capabilities for aerospace and marine applications. The development of theoretical prediction models and experimental verification reveal the inherent effect mechanism between unit cell geometries and electromagnetic properties. Further simulations demonstrate wide applicability and equivalence deduction between structural parameters.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Z. L. Qu, S. Y. Luo, H. R. Bai, R. J. He, X. M. Cheng, Y. M. Pei, D. N. Fang
Summary: This study investigated the in-plane shear strength of 2D C/SiC composites at different temperatures using a modified Iosipescu method. Results showed that the release of tensile stress at elevated temperatures and the oxidation of carbon fibers were the main factors affecting the IPSS variations. The modified Iosipescu method can be a valuable tool for evaluating in-plane properties of CMCs.
EXPERIMENTAL MECHANICS
(2021)
Article
Materials Science, Multidisciplinary
P. Wang, K. F. Wang, B. L. Wang, L. Xi, K. Sano, T. Shimada, H. Hirakata, D. N. Fang
Summary: This study aims to stably and accurately measure the interlaminar fracture toughness (IFT) of multilayered Bi2Te3 for evaluating the reliability of its thermoelectric devices. By developing a tapered cantilever bending (TCB) experiment, the measurement of IFT for Bi2Te3 was successfully achieved, providing a new method for assessing multilayered materials.
EXPERIMENTAL MECHANICS
(2022)
Article
Engineering, Electrical & Electronic
Xujin Yuan, Zhenhong He, Xiuzhu Ye, Mingji Chen, Ying Li, Weiduan Li, Rui Zhang, Yixing Huang, Cunxi Liu, Xiaodong Cheng, Daining Fang
Summary: The paper introduces a wideband metamaterial ground cloak and validates its operational functions through experiments. A comparison between wideband and narrowband metamaterials shows the scattering improvement effect. Experimental results demonstrate the effectiveness of the proposed metamaterial within the gigahertz frequency range.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Materials Science, Composites
Qiubo Li, Yihui Chen, Yanfei Chen, Shigang Ai, Daining Fang
Summary: This study aims to investigate the effect of void defects on the failure behavior and strength of C/SiC composites. Micro-computed tomography and finite element models were used to study the influence of void volume fractions and geometry on the materials. This research is important for better understanding the impact of defects on the mechanical behavior of composite materials.
APPLIED COMPOSITE MATERIALS
(2022)
Article
Mechanics
Dong Wu, Zeang Zhao, Hongshuai Lei, Hao-Sen Chen, Qiang Zhang, Panding Wang, Daining Fang
Summary: Natural tissues can self-strengthen through biological growth, while synthetic materials are typically static. The concept of bio-inspired materials aims to develop materials with dynamically programmable performances. A solvent-free elastomer composite system is proposed in this study, which can be strengthened through tunable self-growth cycles and is compatible with Digital Light Processing (DLP) 3D printing for fast manufacturing of high-precision structures.
COMPOSITE STRUCTURES
(2022)
Article
Materials Science, Composites
Chunwang He, Jingran Ge, Xiaofei Cao, Yanfei Chen, Haosen Chen, Daining Fang
Summary: Manufacturing uncertainties in composites, such as carbon fiber deviations and voids, can impact mechanical properties. Although experiments have been conducted, quantitative characterization of fiber radius and shape deviations, and matrix void content, remain a challenge. A computational micromechanics study was conducted to understand the effects of manufacturing uncertainties on the mechanical behavior of UD composites under different loading conditions. The methodology involved establishing constitutive laws for constituents, modeling RVEs with deviations based on observations, and predicting stress-strain curves and failure modes.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Yanfei Chen, Shigang Ai, Pan Wang, Daining Fang
Summary: A physically based constitutive model for braided silicon carbide ceramic matrix composites (CMCs-SiC) at ultra-high temperature is developed, considering material orthotropy, temperature effect, tension-compression asymmetry, and crack closure effect. The model, implemented using a return mapping algorithm, shows good agreement with experimental data in predicting stress-strain relationships at different stress states and temperatures.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Review
Chemistry, Multidisciplinary
Jixiang Qi, Zihao Chen, Peng Jiang, Wenxia Hu, Yonghuan Wang, Zeang Zhao, Xiaofei Cao, Shushan Zhang, Ran Tao, Ying Li, Daining Fang
Summary: Active mechanical metamaterials combine mechanical metamaterials with smart materials for superior performance, with structures designed based on principles such as phase transition and strain mismatch. External stimuli like temperature, chemicals, and light are used for control and efficiency.
Article
Multidisciplinary Sciences
Handong Jiao, Zhaoliang Qu, Shuqiang Jiao, Yang Gao, Shijie Li, Wei-Li Song, Haosen Chen, Hongmin Zhu, Rongqi Zhu, Daining Fang
Summary: High-temperature electrochemistry is widely used but real-time observations and in-depth understanding of its evolution are limited. In this study, a high-temperature electrolysis facility with in situ x-ray computer microtomography was developed to probe the dynamic evolution of electrodes. The results provide insights into the efficiency and mechanisms of the process, as well as real-time optimization.
