Article
Nanoscience & Nanotechnology
K. A. Darling, B. C. Hornbuckle, C. J. Marvel, V. H. Hammond, K. Solanki
Summary: The paper provides a critical assessment of the role of grain size in limiting strength gains in stable nanocrystalline metals. Using copper-tantalum binary alloys, the study explores the breakdown of classical Hall-Petch behavior and its underlying mechanisms. The results show that Cu-Ta alloys exceed traditional strength limits predicted by the Hall-Petch relationship for NC Cu.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Chemistry, Physical
Elango Chandiran, Yukiko Ogawa, Rintaro Ueji, Hidetoshi Somekawa
Summary: The effect of grain size and strain rate on the room-temperature compression of pure magnesium was studied. It was found that the deformation mechanisms and grain-boundary sliding were significantly influenced by grain size and strain rate, and the Hall-Petch relationship broke down under certain conditions. Additionally, the deformation mode had a negligible impact on the dominant deformation mechanisms and the Hall-Petch breakdown.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Kai Yao, Xiaohua Min
Summary: This study investigated the effect of grain size on the tensile properties of Ti-15Mo alloy, revealing that the impact decreased with increasing strain and eventually became negative. A dynamic Hall-Petch relation was established based on effective grain size, showcasing twin activation, twin suppression, and various interactions.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
B. B. Wang, G. M. Xie, L. H. Wu, P. Xue, D. R. Ni, B. L. Xiao, Y. D. Liu, Z. Y. Ma
Summary: Grain refinement is an effective method to enhance the mechanical properties of materials, with the strengthening effect of high angle grain boundaries being almost three times that of low angle grain boundaries. The study classified the Hall-Petch relationships into three stages as the grain size decreased, showing a positive deviation in fine grain regime due to the increased specific surface area of HAGBs. Additionally, the positive deviation in ultrafine grained regime was influenced by an extra dislocation source limited strengthening mechanism up to 29 MPa.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Fengxia Wei, Baisong Cheng, Li Tian Chew, Jing Jun Lee, Kok Heng Cheong, Jiang Wu, Qiang Zhu, Cheng Cheh Tan
Summary: The study compared EBSD and OM techniques, investigated the effects of different parameters on results, and proposed a modified Hall-Petch equation considering grain size distributions for almost all AM alloy systems with remarkable agreement between predicted strength and experimental values.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Wenjun Huang, Shaochun Yin, Xuejiao Wang, Ruipeng Guo, Yucheng Wu, Junwei Qiao
Summary: The influence of heat treatment on the mechanical characteristics of Ti37V15Nb22Hf23W3 high-entropy alloy was investigated. It was found that the alloy's tensile strength decreases with increasing annealing time, and there is a Hall-Petch relationship between grain size and yield strength.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Nanoscience & Nanotechnology
Nguyen Q. Chinh, Daniel Olasz, Anwar Q. Ahmed, Gyorgy Safran, Janos Lendvai, Terence G. Langdon
Summary: Experimental data show that the conventional Hall-Petch relationship is not applicable to metals with submicrometer structures. A new dislocation model is proposed to modify the Hall-Petch relationship and provide a uniform description of grain size strengthening in submicron-structured f.c.c. metals and solid solution alloys.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Mechanical
Xuefeng Lu, Wei Zhang, Xin Guo, Xu Yang, Junchen Li, Junqiang Ren, Hongtao Xue, Fuling Tang
Summary: Grain boundary plasticity dominates the mechanical behavior of materials, and the introduction of nanotwins can achieve coordination between strength and ductility in metals and alloys. In this study, nanotwins with different volume contents are introduced in NiCoAl alloys to explore the strengthening mechanism under the Hall-Petch effect. The results indicate that the introduction of nanotwins effectively inhibits grain boundary migration and grain combination, improves the strength of the alloy, and changes the strengthening mechanism from dislocation movement, grain boundary migration, and deformation twinning to the dual strengthening of local dislocation movement and Lomer-Cottrell locks.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Automation & Control Systems
Qian Xie, Kun Long, Dening Lu, Dawei Li, Yuan Zhang, Jun Wang
Summary: Gold wire bonding quality inspection is crucial for the functional stability of integrated circuit chips. However, accurately measuring the shape and size of gold wire bonding is challenging due to the small size. In this article, a novel framework using 3-D point cloud and deep learning is proposed for fully automated measurement, achieving high-accuracy quantitative measurement for gold wire bonding structures.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Jing Xu, Bo Guan, Yunchang Xin, Xuedong Wei, Guangjie Huang, Chenglu Liu, Qing Liu
Summary: In this study, a weak texture dependence of Hall-Petch slope (k) in a rare-earth containing Mg-2Zn-1Gd plate was reported, with similar k values for TD-tension and RD-tension. This characteristic can be well predicted by the compound use of activation stress difference and geometric compatibility factor, attributing the mechanism to the activation of a high fraction of additional deformation mode.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Ruixiao Zheng, Wu Gong, Jun-ping Du, Si Gao, Maowen Liu, Guodong Li, Takuro Kawasaki, Stefanus Harjo, Chaoli Ma, Shigenobu Ogata, Nobuhiro Tsuji
Summary: This study reveals that the softening effect caused by grain boundary sliding can be reversed and the Hall-Petch strengthening can be regained through grain refinement in ultrafine grained pure Mg at cryogenic temperature. The UFG Mg exhibits ultrahigh tensile strength but significantly reduced ductility at 77K.
Article
Biochemistry & Molecular Biology
Thi-Xuyen Bui, Te-Hua Fang, Chun- Lee
Summary: In this study, the mechanical properties and plastic deformation responses of nanocrystalline Cr-Ni alloy were investigated via tensile tests by molecular dynamics (MD) simulation. The results show that the yield strength decreases as the grain size decreases, while Young's modulus increases with increasing grain size and percentage of Ni.
JOURNAL OF MOLECULAR MODELING
(2022)
Review
Materials Science, Multidisciplinary
Roberto B. Figueiredo, Megumi Kawasaki, Terence G. Langdon
Summary: The grain size and grain boundary density have significant effects on the flow stress of metallic materials. The Hall-Petch grain refinement strengthening effect, which is a linear relationship to the inverse of the square root of the grain size, has been well-established for more than 70 years. However, grain refinement softening can occur at high homologous temperatures and both effects have been treated separately. Recent research has shown that a general relationship can explain both the Hall-Petch strengthening effect at low temperatures and superplasticity at high temperatures. This review discusses recent advances in structural and mechanical characterization and provides an updated analysis of the relationship between grain size and flow stress.
PROGRESS IN MATERIALS SCIENCE
(2023)
Review
Materials Science, Multidisciplinary
Roberto B. Figueiredo, Terence G. Langdon
Summary: The study investigates the plastic deformation mechanism of ultrafine-grained materials, including strain hardening, strain rate sensitivity, and grain boundary offsets. The model predictions agree with multiple experimental data and provide a good estimate of the HallePetch slope for different materials.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Multidisciplinary
F. H. Duan, Y. Naunheim, C. A. Schuh, Y. Li
Summary: The study investigates the hardness and deformation behavior of body centered cubic Mo(O) alloys with grain sizes ranging from 120 to 4 nm, highlighting a peak hardness at 11 nm and a transition towards glass-like deformation behaviors as grain size decreases.
Article
Mechanics
Ran Xiao, Xiaobin Feng, Wengang Liu, Wenzhao Zhou, Xiang Li, Insu Song, Mingyang Ding, Yiru Pu, Dingkun Zhang, Rong Fan, Ting-Hsuan Chen, Yang Lu
Summary: Through high-resolution projection micro-stereolithography (PμSL) 3D printing and metal thin film deposition, we designed and manufactured thin-walled 3D-printed composite cardiovascular stents with sufficient radial supporting ability. By using a negative Poisson's ratio (NPR) microlattice structure as the scaffold and sputtering with gold (Au) nano thin film, we achieved radial compressive strengthening and thickness reduction of the stents.
COMPOSITE STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
F. H. Duan, Y. Lin, Q. Li, J. H. Luan, J. Lu, J. Pan, Y. Li
Summary: The study reveals that combining nanotwins, low-angle grain boundaries, and microalloying can result in superior combinations of high hardness and good thermal stability in Ni and Ni alloys.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Zhi-bin Zheng, Hao-kun Yang, A. P. Shatrava, Jun Long, Yu-hui Wang, Jia-xin Li, Kai-hong Zheng
Summary: The alloying of high-manganese steel with aluminum produces wear-resistant casting components with greater yield strength and significantly reduced density, which facilitate energy-savings and service life extension. However, the strengthening mechanism of Al alloying and its impact on the work hardening behavior of these castings require further investigation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Metallurgy & Metallurgical Engineering
Tian Gao, Zhihong Liu, Lanlan Yang, Yanbing Tang, Daohua Lu, Yang Yu, Haokun Yang, Yanxin Qiao
Summary: The passivation behavior of selective laser melting 316L stainless steel on different building planes was studied. It was found that the XOZ and YOZ planes have a semicircular molten pool structure, while the XOY plane shows a columnar molten pool structure. The XOZ plane exhibits smaller grain sizes and a higher proportion of low-angle grain boundaries compared to the YOZ and XOY planes. The electrochemical testing results indicate that the XOZ plane has a lower corrosion tendency and a thicker passive film with a higher content of Cr2O3. The XOZ plane, with a higher Crox + hy / (Feox + hy + Crox + hy) ratio, demonstrates excellent passivation performance and better electrochemical properties than the other two planes.
STEEL RESEARCH INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Xinxue Tang, Yuk-Tong Cheng, Junda Shen, Jia-Hua Liu, Zhibo Zhang, Zhiqin Deng, Fucong Lyu, Yong Yang, Guangyu Zhu, Zhengtao Xu, Jian Lu, Yang Yang Li
Summary: This article introduces a novel, safe, and generic method for etching, gelatinating, and processing solid ceramics. It involves using multiple ionic solutions to convert calcite into a multi-ionic amorphous gel with moderate flowability, allowing for convenient collection, storage, transfer, and molding.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xinyue Zhang, Yiyuan Yang, Yujing Liu, Zhe Jia, Qianqian Wang, Ligang Sun, Lai-Chang Zhang, Jamie J. Kruzic, Jian Lu, Baolong Shen
Summary: A novel defect engineering strategy has been proposed to construct a nanoporous high-entropy metallic glass with a nanocrystalline surface structure, which exhibits excellent electrocatalytic performance using only 3% of platinum. The defect-rich metallic glass achieves ultralow overpotentials and long-term durability under alkaline conditions, and significantly reduced energy barriers for water electrolysis.
ADVANCED MATERIALS
(2023)
Article
Engineering, Environmental
Lei Wan, Zhengyi Mao, Hui Liu, Youneng Xie, Fucong Lyu, Zhaowenbo Cao, Yunhu He, Jianan Yin, Xiongqi Han, Wai Yan Kannie Chan, Jian Lu
Summary: This paper proposes a direct four-dimensional (4D) printing technology for achieving and precisely controlling complex ceramic architectures. The designability and flexibility of the proposed approach were demonstrated. The obtained ceramics exhibited excellent mechanical properties. This study can help establish a novel paradigm for designing ceramics with complex structures, with potential for application in various fields such as aerospace and biomedical engineering.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Shengfeng Zhou, Junjie Yang, Cheng Deng, Jianbo Jin, Lianxi Hu, Yang Lu
Summary: Cu-based immiscible coatings reinforced with 10 wt% Fe-based amorphous powder were produced by laser melting deposition. The microstructure and corrosion behavior were investigated. The results showed that the interface of the coating and substrate changed from poor bonding to good bonding and crack debonding with increasing laser energy density. The corrosion characteristics also transformed from crevice corrosion to enhanced protection of passive films and reduced protection of passive films. The immiscible coating deposited with a laser energy density of 31.25 J/mm2 exhibited the highest corrosion resistance.
MATERIALS & DESIGN
(2023)
Article
Engineering, Multidisciplinary
Xiang Li, Ran Xiao, JuZheng Chen, JingQi Li, Rong Fan, Jian Song, Yang Lu
Summary: In this study, a plate-based auxetic cylinder metamaterial was designed and fabricated using high-resolution projection micro-stereolithography three-dimensional printing technique. Experimental and modeling results confirmed the auxetic behavior of the plate-based cylinder. Compared with conventional auxetic honeycomb, the normalized Young's modulus and yield strength of a four-layer auxetic cylinder increased by 141% and 32%, respectively. This study presents a universal strategy for fabricating plate-based auxetic metamaterials with appropriate mechanical performance for various structural applications.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Bo Li, Jun Zhao, Yishang Wu, Guobin Zhang, Haikun Wu, Fucong Lyu, Jun He, Jun Fan, Jian Lu, Yang Yang Li
Summary: Electrocatalysts based on Fe and other transition metals are considered promising candidates for accelerating the oxygen evolution reaction (OER), but whether Fe is the catalytic active site for OER is still debated.
Article
Allergy
Mingshu Huo, Rui Zhao, Xiaoxue Deng, Ying Wang, Qiaoli Liu, Jiarong Yan, Hongyu Yu
Summary: This study explored the adaptation of the Adherence to Asthma Medication Questionnaire (AAMQ) for Chinese patients and verified its reliability and validity in asthma patients. The results of the scale can be used to evaluate medication adherence and understand the reasons for nonadherence among asthma patients. This study provides a reference for addressing the issue of medication adherence in asthma patients.
Article
Chemistry, Physical
Xiaocui Li, You Meng, Wanpeng Li, Jun Zhang, Chaoqun Dang, Heyi Wang, Shih-Wei Hung, Rong Fan, Fu-Rong Chen, Shijun Zhao, Johnny C. Ho, Yang Lu
Summary: All-inorganic lead halide perovskites (CsPbX3) have attracted attention for energy conversion due to their outstanding performance and enhanced environmental stability. In this study, single-crystal CsPbX3 micropillars were successfully morphed into various shapes without causing cleavage or cracks. This exceptional plasticity is enabled by the slips of partial dislocations on multiple {110} planes.
Review
Physics, Multidisciplinary
Li-Yin Gao, Hao-Kun Yang, Xuan Chen, Wei-Dong Tang, Xing-Ming Huang, Zhi-Quan Liu
Summary: Metallic porous materials are crucial in various industrial applications such as weight reduction, heat dissipation, and catalyst. The fabrication of customized, large-scale, and environmentally friendly porous metallic materials is becoming increasingly important. Evaluation of mechanical, heat dissipation, and corrosion resistance properties is necessary before industrial application.
Article
Engineering, Chemical
Yingxian Chen, Zhengyi Mao, Jianan Yin, Junda Shen, Weihui Ou, Jian Lu
Summary: In order to overcome the narrow absorption bandwidth of plasmonic metal materials, a plasmonic nanocomposite Au NR@Cu7S4 was constructed by growing a copper sulfide (Cu7S4) shell on a gold nanorod (Au NR) core. This nanocomposite exhibited broad and intense absorption of solar radiation due to the integration of individually visible (Au NR) and near-infrared (Cu7S4) plasmons, with further enhancement from the coupling of these two plasmons. Unlike aggregating plasmonic metal nanoparticles, this strategy avoids the trade-off between the breadth and intensity of absorption. The Au NR@Cu7S4-impregnated hydrogel achieved an evaporation rate of 2.35 kg m- 2 h-1 under 1 sun illumination, even with a low areal density of gold (28 μg cm-2). Moreover, it showed excellent performance in volatile organic compound removal.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Chenyang Wu, Xuezhi Qin, Huanxi Zheng, Zhenyu Xu, Yuxin Song, Yuankai Jin, Huanhuan Zhang, Jiaying Mo, Wanbo Li, Jian Lu, Zuankai Wang
Summary: This study introduces a dual gradient surface design that enables adaptive droplet bouncing, reducing contact time significantly across a range of impacting velocities and spatial locations. This design provides new insights for liquid-repellent surface engineering and offers opportunities for various applications.
Article
Materials Science, Multidisciplinary
Tongyu Han, Haifeng Shi, Yigang Chen
Summary: In this study, a novel S-scheme system was built by combining CuO with BiVO4 to activate PMS for antibiotic degradation. The system exhibited excellent visible light absorption performance and remarkable charge separation ability, suggesting its potential application in enhancing PMS activation and purifying antibiotics in water.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Linlin Zhou, Tao Yang, Chunyu Guo, Kang Wang, Enhui Wang, Laipan Zhu, Hailong Wang, Sheng Cao, Kuo-Chih Chou, Xinmei Hou
Summary: Piezoelectric silicon carbide (SiC) has been considered for various applications due to its superior properties. However, its brittleness and unsatisfactory piezoelectric response have limited its use. In this study, PVDF/6H-SiC composite fiber films were fabricated and used for assembling high-performance energy harvesters and sensors. The results showed significant improvements in piezoelectric response and sensitivity compared to pure PVDF films. First-principles calculation and finite element analysis confirmed the effect of SiC nanoparticles on the composite film.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Y. F. An, X. P. Chen, L. Mei, P. Ren, D. Wei, W. Q. Cao
Summary: This study systematically investigates the precipitation sequence of Fe-28Mn-11Al-1C-5Ni austenitic low-density steel and its influence on mechanical properties. The results reveal the transformation pathway of kappa' -carbides and B2 particles under different aging conditions. This research is meaningful for guiding the design of new generation dual-nano precipitation austenitic lightweight steel.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Lei Yang, Tingkai Zhao, Abdul Jalil, Huijun Luo, Tao Jiang, Yuan Shu, Yazhou Yin, Weiyu Jia
Summary: In this study, a strategy utilizing oxygen vacancy concentration modulation was used to successfully grow semiconducting single-walled carbon nanotubes (s-SWCNTs) with narrow diameters. The Fe0.01Mg0.99O/CeO2(3) catalyst was employed to provide oxygen vacancies, allowing for selective etching of chemically active carbon nanotube caps during the growth process. The optimized conditions resulted in high purity s-SWCNTs with uniform diameters.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Letter
Materials Science, Multidisciplinary
Lingjun Xu, Pruch Kijkla, Sith Kumseranee, Suchada Punpruk, Tingyue Gu
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
X. P. Hu, Y. H. Zhang, C. B. Liu, H. Z. Cui
Summary: In this study, a novel polyaniline (PANI) nanosheet with barrier and passivation functions was synthesized, and its interaction with polymeric resin was enhanced by polydopamine (PDA) wrapping. The composite coating with incorporated PANI@PDA nanosheets showed improved corrosion resistance by providing a longer penetration path and inducing the formation of a passivation film on the metal substrate.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Yan Zhang, Xuehua Liu, Zhiqiang Guo, Chenyu Jia, Feng Lu, Zirui Jia, Guanglei Wu
Summary: In this study, a self-assembling-etching-anchoring growth method was proposed to prepare MXene@Co electromagnetic wave absorbing materials. The hollow structure design and surface anchored growth of magnetic Co particles significantly enhanced the wave absorption performance of the absorber.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Review
Materials Science, Multidisciplinary
Yajing Ren, Yunfeng Li, Guixu Pan, Ning Wang, Yan Xing, Zhenyi Zhang
Summary: Photocatalytic technology utilizing sunlight as a driving force can convert solar energy into other energy sources for storage and use. CdS, as a typical reducing semiconductor, has attracted attention in photocatalysis due to its suitable bandgap and strong reducing ability. However, the photocatalytic performance of CdS is limited by carrier recombination and photocorrosion. Therefore, CdS has been widely developed as a reducing photocatalyst in constructing S-scheme heterojunctions to overcome these limitations.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Diao-Feng Li, Chun-Guang Bai, Zhi-Qiang Zhang, Hui-Bo Zhang, Nan Li, Jian Zhao
Summary: A novel compliant spinal fixation based on compliant mechanisms is designed to effectively reduce stress-shielding effect and adjacent segment degeneration (ASD), but it requires high properties of the used materials. Bulk metallic glasses (BMGs), as young biomaterials, demonstrate excellent comprehensive properties, making them attractive for compliant spinal fixation. In this study, the large deflection deformation behaviors of Zr61Ti2Cu25Al12 (at.%, ZT1) BMG beam were systematically investigated, including elastic, yielding, and plastic deformations. The theoretical nonlinear analytical solution curve predicts the load-deflection relation within the elastic deformation regime and assists in capturing the yielding event, serving as a powerful design tool for engineers. To accurately capture the beginning of the yielding event in biomedical implant applications, the concept of bending proof strength (sigma p,0.05%) with tiny permanent strain of 0.05% was proposed and determined, which is significant for setting the allowable operating limits of the basic flexible elements. The plastic deformation driven by the bending moment can be classified into two stages: the initial stage characterized by nucleation and intense interaction of shear bands, and the second stage dominated by the progressive propagation of shear bands and emergence of shear offsets. The plasticity of BMG beam structures depends on the BMG's inherent plastic zone size (rp), and when the half beam thickness is less than that of rp, the plastic deformation of BMGs behaves in a stable manner, effectively serving as the margin of safety.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Review
Materials Science, Multidisciplinary
Yanlin Li, Zhu Ma, Shanyue Hou, Qianyu Liu, Guangyuan Yan, Xiaoshan Li, Tangjie Yu, Zhuowei Du, Junbo Yang, Yi Chen, Wei You, Qiang Yang, Yan Xiang, Shufang Tang, Xuelin Yue, Meng Zhang, Wenfeng Zhang, Jian Yu, Yuelong Huang, Jiale Xie, Chun Tang, Yaohua Mai, Kuan Sun
Summary: This paper provides an overview of hydrogen progress from solar energy to solar cells, with a focus on photovoltaic-electrolysis and photoelectrochemical/photovoltaic systems. Both systems have achieved a solar-to-hydrogen efficiency of over 10% and show great potential for large-scale application. The challenges and opportunities in this field, including configuration design, electrode materials, and performance evaluation, are summarized. The paper also analyzes and presents perspectives on the potential commercial application and further scientific research for the development of solar-to-hydrogen.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
L. K. Huang, F. Liu, M. X. Huang
Summary: The bainite transformation in medium Mn steels has been experimentally and theoretically studied, and it has been found that the transformation kinetics is slow. However, the introduction of dislocations can significantly accelerate the transformation rate. A new "carbon depletion mechanism" is proposed to explain the role of dislocations in the acceleration of bainite transformation, and a physical model is developed to quantitatively understand the kinetics of bainite transformation.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Review
Materials Science, Multidisciplinary
Jing Qiao, Lutong Li, Jiurong Liu, Na Wu, Wei Liu, Fan Wu, Zhihui Zeng
Summary: Rare earth plays a crucial role in electromagnetic wave absorption materials, and the strategies of doping rare earth elements and constructing rare earth oxide composites are important for the fabrication of high-efficiency electromagnetic wave absorption materials. This review provides a comprehensive summary of the research background, classification, features, progress, and future development of rare earth electromagnetic wave absorption materials, offering guidance for future development.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Jiacheng Ge, Yao Gu, Zhongzheng Yao, Sinan Liu, Huiqiang Ying, Chenyu Lu, Zhenduo Wu, Yang Ren, Jun-ichi Suzuki, Zhenhua Xie, Yubin Ke, Jianrong Zeng, He Zhu, Song Tang, Xun-Li Wang, Si Lan
Summary: Fe-based metallic glasses are promising materials in the fields of advanced magnetism and sensors. This study proposes a novel approach to tailor the amorphous structure through liquid-liquid phase transition, and provides insights into the correlation between structural disorder and magnetic order. The results show that the liquid-liquid phase transition can induce more locally ordered nanodomains, leading to stronger exchange interactions and increased saturation magnetization. The increased local heterogeneity also enhances magnetic anisotropy, resulting in a better stress-impedance effect.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Hao Yu, Xin Kou, Xueqing Zuo, Ding Xi, Haijun Guan, Pengfei Yin, Lijia Xu, Yongpeng Zhao
Summary: Metal-organic frameworks derived composites are promising EMW absorbers. Cation substitution can improve their absorption performance by regulating morphology and atomic space occupation. However, the mechanisms of how cation substitution affects EMW absorption performance are still not well understood. In this study, imidazolic MOFs were fabricated and tailored by cation substitution strategy to prepare porous composites. The samples showed optimal reflection loss and effective absorption bandwidth values under low filling rate and thin thickness conditions. The intercoupling between multiple atoms and the porous structure introduced by cation substitution contribute to the improved absorption performance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Lina Wang, Peiyi Yan, Huairui Chen, Zhuo Li, Shu Jin, Xiaoxiang Xu, Jun Qian
Summary: The narrow bandgap semiconductor MgIn2S4 has been grown onto In2O3 nanofibers using an in situ growing method. The resulting MgIn2S4-In2O3 hybrid nanofibers exhibit strong visible light absorption and intimate MgIn2S4/In2O3 heterointerfaces, leading to highly efficient photocatalytic disinfection of Escherichia coli.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
