Article
Materials Science, Multidisciplinary
Haijun Su, Yuan Liu, Qun Ren, Zhonglin Shen, Haifang Liu, Di Zhao, Guangrao Fan, Min Guo, Jun Zhang, Lin Liu, Hengzhi Fu
Summary: The distribution control and formation mechanism of gas inclusions in directionally solidified Al2O3-Er3Al5O12-ZrO2 eutectic ceramic rods during laser floating zone melting were explored. The presence of gas inclusions was found to be strongly influenced by the solidification rate, with intermittent formation at moderate rates and continuous formation at higher rates. Gas inclusions exhibited an elongated finger-like pattern and their volume fraction gradually increased with the solidification rate. The primary formation mechanism of gas inclusions was evaluated to be heterogeneous nucleation of gas bubbles.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Thermodynamics
Peng Peng
Summary: This study analyzed liquid migration phenomena under both axial and radial temperature gradients, using a diffusion-controlled analytical model. The results showed that the morphology change of liquid droplets during their migration is mainly attributed to the conglomeration due to solute enrichment at the solid-liquid interface.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2021)
Review
Crystallography
Francisco Rey-Garcia, Rafael Ibanez, Luis Alberto Angurel, Florinda M. Costa, German F. de la Fuente
Summary: The Laser Floating Zone technique is a simple and fast method for growing high-crystalline-quality materials, with potential applications in photonics, optics, and electrical fields. It has been developed over several decades and shows promise for future crystal growth developments.
Article
Nanoscience & Nanotechnology
Dan Wang, Xingfu Wang, Wen Wang, Xinfu Wang
Summary: This study investigates the effect of withdrawal rate on the microstructure and properties of twinning-induced plasticity (TWIP) steels solidified using the optical floating zone method. Results show that a higher withdrawal rate leads to better plasticity and strength. Among the three samples, DS15 exhibits the highest elongation and the most homogeneous twin structure.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Ceramics
Haijun Su, Hao Jiang, Zhuo Zhang, Di Zhao, Yuan Liu, Zhonglin Shen, Yinuo Guo, Chubin Yang, Wei Ren
Summary: This study reports on the crucible-free fabrication of ZrB2-SiC composite ceramics using laser surface zone-melting (LSZM) with Nd:YAG laser, ytterbium-doped fiber laser, and CO2 laser. The comparative investigation of the laser processed zone shows that the CO2 laser is the most suitable resource for producing highly dense and largescale ZrB2-SiC composite ceramics with maze-shaped eutectic microstructure by LSZM. The high temperature gradient achieved by CO2 laser leads to submicron-scale phase size, resulting in high relative density, Vickers hardness, and fracture toughness of the ZrB2-SiC composite ceramics.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Yaqiong Li, Chengcheng Liu, Lifeng Zhang
Summary: The experimental results showed that the surface roughness of the Si substrate and the growth temperature were essential factors influencing the wettability evolution. The released SiO gas due to the reaction between Si and SiO2 caused the instant Si growth.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Physical
Haiwei Wang, Xiaoli Zhang, Jie Meng, Jinxia Yang, Yanhong Yang, Yizhou Zhou, Xiaofeng Sun
Summary: The research found that the grain overgrowth rate was weakly dependent on the temperature gradient, but sensitive to the solute field around the dendrite tips. Moreover, with increasing natural convection, the grain overgrowth rate tended to be promoted. The solute field was identified as the dominant factor governing the overgrowth behavior of competing grains.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Physics, Multidisciplinary
Chang-Sheng Zhu, Zi-Hao Gao, Peng Lei, Li Feng, Bo-Rui Zhao
Summary: The multi-phase field model of grain competitive growth during directional solidification of alloy is established in this study. The grain boundary evolution and grain elimination during the competitive growth of SCN-0.24-wt% camphor model alloy bi-crystals are investigated, and the effects of different crystal orientations and pulling velocities on grain boundary microstructure evolution are quantitatively analyzed. Several important findings are obtained.
Article
Materials Science, Multidisciplinary
Chunwen Guo, Kangrong Weng, Jincheng Wang, Hongliang Zhao, Xianglei Dong, Yuheng Fan, Junjie Li
Summary: The competitive growth of two diverging grains was investigated through 3D phase-field simulations. The study found that the grain elimination behavior differs between 2D and 3D cases due to the different spatial arrangement. The elimination rate of grains is faster in 3D competitive growth.
COMPUTATIONAL MATERIALS SCIENCE
(2022)
Article
Crystallography
T. Hughes, A. J. Robinson, S. McFadden
Summary: Competitive growth between neighbouring (111) dendrites was investigated in directional solidification experiments using a transparent model alloy. The results showed that the secondary arms of (111) dendrites grew with more favourable orientation than those of (100) dendrites, allowing them to outgrow and stabilize along the growth direction. The deviation from the Walton-Chalmers rule of competitive growth was found to be probabilistic and dependent on the initial seeding and 3D nature of the experiments.
JOURNAL OF CRYSTAL GROWTH
(2022)
Article
Green & Sustainable Science & Technology
Pengting Li, Lian Dong, Zhiqiang Hu, Shiqiang Ren, Yi Tan, Dachuan Jiang, Xiaogang You
Summary: This paper presents a method of using electron beam melting coupled with directional solidification to purify silicon scraps. Hard particles are effectively removed by the collision and clustering under the action of melt convection. Metal impurities are concentrated in the top center of the ingot due to the accelerated convection caused by the electron beam. The obtained silicon ingot has low impurity content and can be used for high-performance polycrystalline silicon production.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Crystallography
Tanya Berry, Shannon Bernier, Gudrun Auffermann, Tyrel M. McQueen, W. Adam Phelan
Summary: This study reported the preparation of single-crystal SrVO3 using the laser floating zone technique, demonstrating that the composition of optimized SrVO3 crystals can be adjusted by the crystal pulling rate. The results show the utility of this technique in preparing a range of materials.
JOURNAL OF CRYSTAL GROWTH
(2022)
Article
Materials Science, Multidisciplinary
Yang Zenan, Zhang Zhen, Guo Chunwen, Pan Hao, Wang Zhen, Zhang Qiang, Huang Chaohui, Wang Zhijun
Summary: The competitive growth and grain boundary selection in directional solidification play a crucial role in understanding the misoriented grains in the fabrication of single crystal blades.
RARE METAL MATERIALS AND ENGINEERING
(2021)
Article
Chemistry, Physical
Arkadiusz Bieszczad, Ernest Popardowski, Weronika Lubinska, Maciej Gliniak, Grzegorz Nawalany, Pawel Sokolowski
Summary: In analyzing the global waste management sector, it is evident that certain types of waste, such as rubber waste and sewage sludge, present significant challenges in terms of their management. The solidification process, by utilizing these wastes as substrates in concrete production, appears to be a potential solution. This study aimed to investigate the impact of incorporating waste materials, specifically hydrated sewage sludge and rubber granulate, into cement. The results indicated that while rubber granulate enhanced the compressive strength of the concrete, the addition of hydrated sewage sludge led to a deterioration in the mechanical properties.
Article
Materials Science, Multidisciplinary
Ruochen Ding, Jun Yao, Baorui Du, Kailun Li, Maohua Pan, Lu Zhao, Yumeng Guo
Summary: Lattice structure, with characteristics of low density, high specific strength, and high specific stiffness, is suitable for applications in secondary load-bearing components. Research shows that ARCH lattice structure exhibits better flexural properties under Y loading direction, and the relative density has a significant influence on its flexural properties. The Gibson-Ashby equation is established to estimate the flexural properties of lattice structures with different relative densities, providing a theoretical basis and reference for engineering applications.
ADVANCED ENGINEERING MATERIALS
(2021)
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)