Article
Chemistry, Physical
Wook Ha Ryu, Won-Seok Ko, Haruka Isano, Rui Yamada, Hehsang Ahn, Geun Hee Yoo, Kook Noh Yoon, Eun Soo Park, Junji Saida
Summary: In this study, we systematically investigate the compressive plasticity and shear band behavior of Zr-based bulk metallic glasses (BMGs) with different Poisson's ratio and aspect ratios/contact friction coupling. Our findings demonstrate that lower contact friction and smaller aspect ratios can promote shear band distribution and improve global plasticity. We propose three stages of plastic flow in BMGs and show that the variation of plastic flow is mainly affected by aspect ratio and Poisson's ratio. We also propose a three-dimensional map of plastic flow in Zr-based BMGs reflecting the key multi-variables for shear band behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Hu Huang, Minqiang Jiang, Jiwang Yan
Summary: Nanoindentation experiments were conducted on a Zr-based metallic glass under various loading rates, revealing that increasing the loading rate weakened the size of serrated flow but kept the number stable, while maintaining similar shear band features around residual indents. These results challenge the previous understanding derived from experiments using the Berkovich indenter.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Diao-Feng Li, Chun-Guang Bai, Zhi-Qiang Zhang, Jian Zhao
Summary: The detailed evolutions of shear-banding and serrated flow and their correlation in Zr61Ti2Cu25Al12 bulk metallic glass under bending were systematically studied. Three stages were identified during plastic bending based on different shear-banding and serrated flow behaviors. The driving force for shear band propagation depended on the bending moment, and positive correlations were found between the bending moment, shear band zone height, and average load drop. Multiple shear bands exhibited intense interactions and competitions, and self-organized criticality behavior from serrated flow dynamics was observed.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Xiaojun Sun, Jie He, Dunbo Yu, Yang Luo, Zilong Wang, Yuanfei Yang
Summary: This work investigates the relationship between structural heterogeneity and serrated flow in nanoscale phase separated Zr-Cu-Fe-Al bulk metallic glasses with different plasticity. The results show that as the atomic ratio of Cu to Fe increases, serration dynamics transform from a chaotic state to a self-organized critical state. This transformation is attributed to the increase in structural heterogeneity, which promotes the formation of multiple shear bands.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
X. Y. Wang, S. D. Feng, L. Qi, W. Gao, S. L. Zhang
Summary: The study found that uniformly distributed spherical B2-CuZr crystal particles in Cu50Zr50 amorphous alloy can affect its mechanical properties, with the best comprehensive performance occurring when the radius of B2-CuZr particles is 2.3 nm. Analysis shows that B2-CuZr particles can delay the expansion and propagation of shear bands, resulting in nanocomposites having better plasticity than the amorphous alloy.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
Jing Zhou, Qianqian Wang, Qiaoshi Zeng, Kuibo Yin, Anding Wang, Junhua Luan, Litao Sun, Baolong Shen
Summary: The strength and plasticity of FeNiBSiNbP BMG were simultaneously improved through fluxing treatment by modulating the atomic-scale structure, leading to the formation of more ILCs and CLCs. This resulted in a stable plastic deformation process with strong interactions of multiple shear bands, thus enhancing the mechanical properties of the BMG.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Peng Hua, Bing Wang, Chao Yu, Yilong Han, Qingping Sun
Summary: This study investigates shear-induced amorphization in nanocrystalline NiTi micropillars through compression experiments. It is found that the micropillars exhibit high deformability with notable amorphization and crystal refinement in the shear bands. The shear-induced amorphization initiates from the local martensite phase near grain boundaries through the accumulation of crystalline defects. Additionally, the suppression of nanovoid formation enables large plastic deformation in the nanocrystalline NiTi micropillars.
Article
Nanoscience & Nanotechnology
J. W. Lv, C. Wei, S. Zhang, H. R. Zhang, X. Y. Zhang, M. Z. Ma
Summary: The size-dependence on the compressive mechanical and serrated-flow behaviors of Ti-based bulk metallic glass was investigated. Results showed that as the specimen diameter reduced, the compressive plasticity improved while the fracture strength decreased, indicating smaller specimens had softer characteristics. Additionally, the increase in specimen diameter resulted in a more discrete distribution of both strength and plasticity.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Engineering, Geological
Seyed Milad Parvaneh, Craig D. Foster, Sheng-Wei Chi
Summary: A three-invariant continuum cap plasticity model with viscoplastic features is developed for modeling the large deformation of soil, capturing multiple failure mechanisms.
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
(2022)
Article
Materials Science, Multidisciplinary
Se Eun Jung, Seo Gyun Kim, Tae Hyung Kim, Junghwan Kim, Minsu Kim, Dongju Lee, Dayeon Lee, Bon-Cheol Ku, Seung Hee Lee
Summary: A large and thin conductive carbon nanotube (CNT) polarizer with high polarization efficiency has been successfully constructed using liquid crystal phase, unidirectional shearing, and drying methods. This study provides a new paradigm for realizing ultrathin and large CNT polarizers for broadband applications with outstanding heat resistance.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Niuniu Wang, Hubin Luo, Lei Liu, Yong Ding, Renjie Chen, Xiangyu Zhang, Xiaohong Yao, Izabela Szlufarska, Aru Yan
Summary: Recently, it has been discovered that SmCo5 can form amorphous shear bands, leading to dislocation-free plastic deformation at large strains. The formation of shear bands is energetically favorable and does not induce high local stress compared to cracking. However, the atomic-level mechanism of the crystalline-to-amorphous transition during shear-band formation remains unclear. This paper investigates the shear deformation of SmCo5 through molecular dynamics simulations and explores the atomic packing in the interfacial zone between the crystal matrix and shear band to understand the behavior of shear-band formation.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
C. Y. Zhang, G. Yuan, Y. X. Zhang, C. Y. Liu, F. Fang, G. D. Wang, R. D. K. Misra
Summary: This study continuously prepared Cu-based amorphous alloy plates using twin-roll strip casting method, showed that the plates have good surface quality and shape, and demonstrated excellent bending and compression plasticity achieved through multiple shear bands.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Review
Chemistry, Physical
Mohammadali Ahmadi, Ehsan Aliabadian, Benjieming Liu, Xuantong Lei, Pooneh Khalilpoorkordi, Qingfeng Hou, Yuanyuan Wang, Zhangxin Chen
Summary: A comprehensive understanding of interfacial behavior in water/oil/surfactant systems is crucial for evaluating the performance of emulsions in various industries. This review summarizes the fundamentals and progress of dissipative particle dynamics (DPD) simulation in studying colloidal and interface systems, particularly surfactant/water/oil mixtures.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2022)
Article
Mechanics
L. Borkowski, M. Anahid, A. Staroselsky, W. Hu
Summary: The current computational mechanics methods lack coupling between remeshing and microstructure-sensitive models, which are necessary for considering microstructural evolution during forming operations. By integrating remeshing capabilities with crystal plasticity finite element (CPFE) model and enhancing 3D adaptivity in LS-DYNA, it is possible to accurately predict the evolution of microstructures and shear band formation in forged parts, leading to improved strength, life, and manufacturing yield.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2021)
Article
Engineering, Mechanical
Xuelin Chen, Jinyuan Tang, Han Ding, Anmin Liu
Summary: This study investigates the temperature fluctuation process on localized shear bands at the mesoscopic scale and its impact on the chip formation mechanism. Through accurate modeling and novel measurement methods, effective predictions of temperature and physical phenomena at various chip segmentation stages can be achieved.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Materials Science, Multidisciplinary
Weiming Yang, Qianqian Wang, Wenyu Li, Lin Xue, Haishun Liu, Jing Zhou, Jinyong Mo, Baolong Shen
MATERIALS & DESIGN
(2019)
Article
Materials Science, Multidisciplinary
Cong Liu, Qiang Li, Juntao Huo, Lei Xie, Weiming Yang, Chuntao Chang, Yanfei Sun
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2019)
Article
Physics, Applied
Weiming Yang, Wenyu Li, Qi Jiang, Juntao Huo, Yucheng Zhao, Haishun Liu
JOURNAL OF LOW TEMPERATURE PHYSICS
(2020)
Article
Materials Science, Multidisciplinary
Jinyong Mo, Haishun Liu, Zhe Chen, Yezeng He, Weiming Yang, Baolong Shen
COMPUTATIONAL MATERIALS SCIENCE
(2020)
Article
Materials Science, Ceramics
Long Hou, Weiming Yang, Qiang Luo, Xingdu Fan, Haishun Liu, Baolong Shen
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2020)
Article
Materials Science, Ceramics
Feng Hu, Chenchen Yuan, Qiang Luo, Weiming Yang, Baolong Shen
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2019)
Article
Materials Science, Ceramics
Weiming Yang, Mingzi Wang, Jingyan Li, Qi Jiang, Haishun Liu, Chunguang Tang
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2020)
Article
Physics, Applied
Weiming Yang, Wenyu Li, Chao Wan, Juntao Huo, Jinyong Mo, Haishun Liu, Baolong Shen
JOURNAL OF LOW TEMPERATURE PHYSICS
(2020)
Article
Materials Science, Ceramics
Mingzi Wang, Haishun Liu, Jingyan Li, Qi Jiang, Weiming Yang, Chunguang Tang
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2020)
Article
Materials Science, Multidisciplinary
Weiming Yang, Xinfa Sun, Haishun Liu, Changfeng Yu, Wenyu Li, Akihisa Inoue, Daniel Sopu, Jurgen Eckert, Chunguang Tang
Summary: This study reveals a universal dependence of mechanical properties on simple structural parameters for metallic glasses, providing insights into the fundamentals of the mechanical properties of disordered systems.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Manufacturing
Qi Jiang, Haishun Liu, Jinyan Li, Dengfeng Yang, Yue Zhang, Weiming Yang
ADDITIVE MANUFACTURING
(2020)
Review
Engineering, Manufacturing
Haishun Liu, Qi Jiang, Juntao Huo, Yue Zhang, Weiming Yang, Xiaopeng Li
ADDITIVE MANUFACTURING
(2020)
Article
Materials Science, Multidisciplinary
Weiming Yang, Wenyu Li, Chao Wan, Juntao Huo, Bingzhuo Liu, Baolong Shen, Haishun Liu, Akihisa Inoue
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS
(2020)
Article
Materials Science, Multidisciplinary
Qianqian Wang, Jing Zhou, Qiaoshi Zeng, Genlei Zhang, Kuibo Yin, Tao Liang, Weiming Yang, Mihai Stoica, Litao Sun, Baolong Shen
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)