Article
Chemistry, Physical
Mahdieh Safyari, Masoud Moshtaghi, Shigeru Kuramoto, Tomohiko Hojo
Summary: In this study, the hydrogen trap sites and binding energies in an Al-Cu-Mg alloy with different microstructures were investigated to understand the environmental hydrogen embrittlement behavior. The results show that the density and nature of trap sites can determine the susceptibility of the alloy to environmental hydrogen embrittlement.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Aida Azizi, Shahab Zangeneh, Milad Mojtahedi, Sajad Rasaee
Summary: The present study investigated the hot deformation behavior of AA4032 alloy modified with Ni and Cu. The effect of extra copper and nickel on the microstructure and phase formation was studied. The best hot working condition was found to be at a temperature range of 720-780 K with a strain rate of 0.001-0.03 s1.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Inorganic & Nuclear
Mili Liu, Hui Liu, Kang Chen, Jiangyong Sun, Hui Wang, Jiangwen Liu, Liuzhang Ouyang
Summary: The study investigated the potential of a multiphase Al-Li alloy as a hydrolytic material for hydrogen production, showing rapid hydrogen release over a wide temperature range. The alloy demonstrated excellent air-resistance ability and controllable hydrogen production kinetics, hinting at advancements in commercial hydrogen production technologies.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Materials Science, Multidisciplinary
Shuanqiang Wang, Guanghui Meng, Menghua Song
Summary: The effect of copper content on the microstructure and properties of an aluminum copper alloy containing lanthanum was studied. Adding La and Cu can refine the alloy grain and change the fracture mode. Excessive addition of Cu increases the tendency for hot cracking. The tensile strength and hardness of the cast alloy significantly increase with the increase in Cu addition. Adding Cu is beneficial for improving the wear resistance of the alloy. The best wear resistance and minimum wear amount occur when Cu addition is 3 wt%. The Cu content in the alloy can be increased to 7-8% with the increasing of additional rare-earth elements.
Article
Materials Science, Multidisciplinary
Hyeon-Woo Son, Sang-Hwa Lee, Sung-Ho Kang, Yong-You Kim, Kwangjun Euh
Summary: The effect of Ge addition on the delaying natural aging of Al-Mg-Si-Cu alloy was investigated. It was found that Ge addition suppressed the natural aging kinetics and cluster size. Atom probe tomography revealed that Ge refinement of cluster evolution was achieved by disturbing the magnesium enrichment of silicon-silicon clusters and enhancing vacancy trapping. Ge segregation at the cluster interface was also considered as a potential barrier to cluster growth.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Multidisciplinary
Yuanyuan Shang, Claudio Pistidda, Chiara Milanese, Alessandro Girella, Alexander Schokel, Thi Thu Le, Annbritt Hagenah, Oliver Metz, Thomas Klassen, Martin Dornheim
Summary: This manuscript proposes a method for obtaining high-quality NaAlH4 from automotive recycled alloy, and comprehensively explores its hydrogen storage properties using various experimental techniques. The results show that NaAlH4 with comparable properties to high-purity commercial NaAlH4 was successfully synthesized.
Article
Nanoscience & Nanotechnology
Sang-Hwa Lee, Jae-Gil Jung, Sung-Il Baik, Sung Hyuk Park, Min-Seok Kim, Young-Kook Lee, Kwangjun Euh
Summary: The addition of Ti refines the grain size, reduces phase agglomeration, and improves the strength and ductility of the alloy, with the extrusion forming a bimodal structure of fine DRXed grains and coarse unDRXed grains.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Energy & Fuels
Peng Sheng, Songli Zhang, Jian Yang, Chuang Guan, Jianpeng Li, Mingjie Liu, Weiwu Pan, Yanqi Wang
Summary: The presence of NaCl affects the hydrogen generation capability of Al-Ga-In-Sn-NaCl composites, with excess NaCl leading to a decrease in hydrogen generation. Optimizing the milling time can increase the hydrogen yield of the composites. Additionally, the composites can maintain 100% and 94% of the original hydrogen yield after being exposed to air for 5 and 10 days, respectively.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Guodong Niu, Langjie Zhu, Wangrui Ren, Yu Wang, Houwen Chen, Jianfeng Wang, Jian Mao
Summary: Ce atoms were added into Al-Cu-Mn-Zr alloys to investigate their effect on theta' precipitates. It was found that Ce atoms could enter the lattice of theta' precipitates and occupy the internal Cu atom sites. The interfacial stability of Cu-rich theta'/alpha-Al matrix with Ce addition was also evaluated, showing lower interface energy compared to theta' precipitates without Ce occupation. This means that Ce atoms can stabilize the metastable Cu-rich theta' precipitates and enhance their resistance to coarsening at elevated temperatures. Addition of 0.3Ce can improve the microstructural stability of theta' in the Al-7Cu-0.5Mn-0.2Zr alloy by enhancing the coherent interfacial stability of the Cu-rich theta'/alpha-Al interface.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Osman Kahveci, Mehmet Fatih Kaya
Summary: Electric vehicles offer a viable solution to transportation issues caused by high fossil fuel consumption and greenhouse gas emissions. However, their widespread adoption poses significant challenges in terms of waste management. Therefore, policies related to the recycling of electric vehicle components should be implemented.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Jianming Yang, Yuanbo Zheng, Jian Shi, Yifan Jia, Jialin Li, Qian Zhang, Weiqiang Wang, Qinwei Yu
Summary: This paper simulates the reaction of Ni-Al alloys with H2O using the ReaxFF reaction force field module of the Amsterdam Modeling Suite. It reveals the atomic-level reaction route of H2 production. The results show that Al is the most critical active site, and the crystal structure and atomic ratio of the alloy affect the H2 production capacity. The presence of a water solvation layer and surface coverage reduces the H2 production rate, and oxygen reduces the active sites for H2O adsorption.
Article
Materials Science, Multidisciplinary
Yun-Soo Lee, Je-Ki Jung, Soo-Bae Kim, Su-Hyeon Kim, Cha-Yong Lim, Hyoung-Wook Kim, Won-Kyoung Kim, Soong-Keun Hyun
Summary: The study demonstrates that the application of thermomechanical treatment and Sr addition can significantly improve the mechanical properties and workability of ALDC12 aluminum alloy, enhancing the alloy's strength and ductility. This microstructural control method is of great significance for cast products.
MATERIALS CHARACTERIZATION
(2021)
Article
Nanoscience & Nanotechnology
Zhihong Jia, Yuan Xing, Yaru Ning, Lipeng Ding, Longlong Hao, Qing Liu
Summary: This research investigates the solute segregation phenomenon at the Si2Hf/Al interface in an Al-Si-Cu-Hf alloy through multiple methods. It is found that copper atoms exhibit a density gradient distribution, which enhances the stability of Si2Hf precipitates.
SCRIPTA MATERIALIA
(2023)
Article
Materials Science, Multidisciplinary
Guangjing Li, Hengcheng Liao, Huaijin Teng, Linlong Yang, Huiting Guo
Summary: The study demonstrates that the addition of trace B in Al-Si-Cu-Mn-Ni alloy can alter the morphology and size of the primary Mn-rich phase, forming fine (V,Ti,Mn)B2 particles that greatly enhance the nucleation of the primary Al3MnSi2 phase.
Article
Materials Science, Multidisciplinary
T. K. Akopyan, N. V. Letyagin, N. A. Belov, A. S. Fortuna, X. D. Nguen
Summary: The influence of Sn micro-addition on the precipitation structure and mechanical properties of the Al-Cu-Mn based alloys has been studied. The peak hardness of the Sn-containing alloy is 43% higher than the Sn-free alloy, and the trace addition leads to the formation of finer precipitates with a higher density. The mechanical properties of the model Al4Cu1.5Mn0.1Sn alloy are similar to the industrial 2219-type alloy.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
B. D. Du, W. Wang, W. Chen, D. M. Chen, K. Yang
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2017)
Article
Chemistry, Physical
T. T. He, W. Wang, W. Chen, D. M. Chen, K. Yang
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2017)
Article
Materials Science, Multidisciplinary
Tiantian He, Wei Wang, Wei Chen, Demin Chen, Ke Yang
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2017)
Article
Electrochemistry
Jiang Wei, Wei Chen, Demin Chen, Ke Yang
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2017)
Article
Chemistry, Physical
B. D. Du, T. T. He, G. L. Liu, W. Chen, Y. M. Wang, W. Wang, D. M. Chen
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2018)
Article
Materials Science, Multidisciplinary
Jiang Wei, Wei Chen, Demin Chen, Ke Yang
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2018)
Article
Materials Science, Multidisciplinary
Chengxu Wang, Wei Chen, Minghui Chen, Demin Chen, Ke Yang
JOURNAL OF NUCLEAR MATERIALS
(2019)
Article
Chemistry, Physical
Tiantian He, Wei Chen, Wei Wang, Sanming Du, Sier Deng
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Metallurgy & Metallurgical Engineering
Chengxu Wang, Wei Chen, Minghui Chen, Demin Chen, Fuhui Wang
Summary: The adhesion strength between AlN layer and nickel coating can be significantly enhanced through mechanical interlocking, effectively preventing coating flaking off; meanwhile, by etching pre-treatment of the AlN layer, the corrosion resistance of the coated alloy is further improved, completely suppressing elements interdiffusion.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Jingjing Liu, Shuai Zhu, Xiangyu Chen, Jie Xu, Lu Zhang, Kai Yan, Wei Chen, Honghui Cheng, Shumin Han
Summary: The article introduces a series of biphase superlattice hydrogen storage alloys (HSAs) with superior electrochemical properties compared to other alloys. Despite having slightly lower cycling stability than single-phase alloys, the biphase alloys exhibit good high-rate discharge performance, making them promising as advanced electrode materials for power batteries.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
X. W. Wang, W. Wang, W. Chen, D. M. Chen
Summary: The study found that the weight loss rates of alloys in NaCl solution increase with the addition of In and at higher water temperatures, with the alloys exhibiting the highest weight loss rates at 70 degrees C and 90 degrees C. Electrochemical measurements were conducted to study the corrosion behavior of Mg-Al-Cu-In alloys, and the reasons for the different corrosion behaviors were discussed.
MATERIALS CHARACTERIZATION
(2021)
Article
Multidisciplinary Sciences
Shun Feng, Chi Liu, Qianbing Zhu, Xin Su, Wangwang Qian, Yun Sun, Chengxu Wang, Bo Li, Maolin Chen, Long Chen, Wei Chen, Lili Zhang, Chao Zhen, Feijiu Wang, Wencai Ren, Lichang Yin, Xiaomu Wang, Hui-Ming Cheng, Dong-Ming Sun
Summary: By utilizing the photo-induced barrier-lowering mechanism in MoS2/α-MoO3-x heterojunctions, a high-performance and fast-response two-dimensional phototransistor has been achieved, providing a new technical approach for the fabrication of 2D material-based phototransistors.
NATURE COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
X. W. Wang, W. Wang, W. Chen, D. M. Chen
Summary: The study investigated the effects of Al content and annealing condition on the microstructures and corrosion performances of Mg-3 wt.%Cu-x Al alloys. Al-bearing alloys exhibit MgAlCu and Mg17Al12 phases with higher Volta potential, and the volume fractions of Cu-bearing phases are influenced by Al content and annealing condition. The corrosion performances of alloys can be controlled by adjusting Al content and annealing conditions, as indicated by the relationship between weight loss rate and Cu-bearing phase volume fractions.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Chengxu Wang, Wei Chen, Minghui Chen, Demin Chen, Ke Yang, Fuhui Wang
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2020)
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)