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
Electrochemistry
Fanglei Tong, Xize Chen, Teik Ee Teoh, Shanghai Wei, Geoffrey I. N. Waterhouse, Wei Gao
Summary: The study found that the addition of tin to Mg alloys improves the operational voltage and battery discharge performance in magnesium-air batteries, with Mg-5Sn performing best at low current densities and Mg-1Sn delivering the best performance at high current densities.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Gnanasambandam Anbuchezhiyan, Nabisab Mujawar Mubarak, Rama Rao Karri, Mohammad Khalid
Summary: This study synthesized Mg-Al-Zn alloy and Mg-Al-Zn/BN/B4C hybrid composite, and evaluated their properties. The results showed that the hybrid composite samples reinforced with 9 wt% B4C outperformed the control specimen in terms of strength and hardness, and reduced the corrosion area.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Multidisciplinary
Yihao Bao, Liang Chen, Jianwei Tang, Zhigang Li, Guoqun Zhao, Cunsheng Zhang
Summary: In this study, a Mg alloy with alloying elements of Zn, Al, Sn, and Mn was designed, and hot extrusion was carried out at various speeds and temperatures. It was found that high speed extrusion resulted in more second phase particles, while high extrusion temperature increased the number of second phases, grain size, and dynamic recrystallization degree. The sample extruded at a speed of 10 mm/min and temperature of 300 degrees C showed the highest yield strength, tensile strength, and corrosion resistance.
MATERIALS CHARACTERIZATION
(2021)
Article
Chemistry, Physical
Bangjun Li, Jiapeng Sun, Bingqian Xu, Guosong Wu
Summary: This paper investigates the corrosion behavior of Mg-5.7Gd-1.9Ag alloy sheets in a salt solution. The results show that the rolled sheets exhibit better corrosion resistance compared to the as-cast sheets. Aging treatment decreases corrosion resistance, but it still remains higher than that of the as-cast sheets. The migration of corrosion is mainly influenced by the evolution of second phases rather than grain size and texture.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Metallurgy & Metallurgical Engineering
Ke Liu, Feng Lou, Jun-jian Fu, Zi-jian Yu, Shu-bo Li, Zhao-hui Wang, Xian Du, Wen-bo Du
Summary: The corrosion behaviors and mechanism of Mg-xZn-0.5Er (x = 0.5, 2.0, 3.0 and 4.0, in wt.%) alloys were investigated. The potential difference between the second phase and matrix was determined by the type and size of the second phases. The dominated nano-scale W-phase on the matrix induced sharp local pitting corrosion, while an increase in the volume fraction of the coarse W-phase or I-phase resulted in preferential corrosion around them, leading to obvious uniform corrosion and an accelerated corrosion rate.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Materials Science, Multidisciplinary
Andre Barros, Clarissa Cruz, Amauri Garcia, Noe Cheung
Summary: The study focuses on the role of microstructure features in the corrosion behavior of an Al-10wt.%Sn-5wt.%Zn alloy. The results show relatively high electrochemical activity of the alloy and a slight tendency towards improved corrosion resistance with coarsening in microstructure.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Metallurgy & Metallurgical Engineering
Yang Liu, Wei-li Cheng, Xiong-jie Gu, Yan-hui Liu, Ze-qin Cui, Li-fei Wang, Hong-xia Wang
Summary: The addition of 0.5 wt% Mn microalloy significantly enhances the corrosion resistance of Mg-0.5Bi-0.5Sn alloy, reducing grain size and dislocation density, while also observing new second phase and grain boundary segregation in certain micro-regions.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Materials Science, Multidisciplinary
Cheng Zhang, Cheng Peng, Jin Huang, Yanchun Zhao, Tingzhuang Han, Guangang Wang, Liang Wu, Guangsheng Huang
Summary: The effect of Ca on the microstructure and corrosion behavior of Mg-Sc alloy was investigated. The results showed that the addition of Ca can refine the grain size and improve the corrosion resistance of the alloy by forming a protective corrosion product film.
Article
Metallurgy & Metallurgical Engineering
Xue-jian Wang, Zong-ning Chen, Yu-bo Zhang, En-yu Guo, Hui-jun Kang, Pei Han, Tong-min Wang
Summary: The study investigated the influence of microstructural characteristics on the corrosion behavior of Mg-5Sn-3In alloys in Hank's solution after extrusion, showing that the extruded alloy exhibited a more uniform corrosion morphology and reduced local corrosion susceptibility. Cytotoxicity tests indicated a low cytotoxicity level for the alloy in vitro assays.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2021)
Article
Materials Science, Multidisciplinary
Qiangbing Liu, Jiaxuan Ma, Shiyu Luan, Jinhui Wang, Shuai Yuan, Li Han, Peipeng Jin
Summary: The temperature damping capacities of Mg-3Al-1Zn-xSn alloys were investigated using a DMA, and the effects of Sn concentration and loading frequency were examined. The addition of Sn resulted in shifts in the damping peaks, indicating the influence of second phases near grain boundaries. The enhanced damping capacity at different frequencies was attributed to increased point defects and precipitates before 220°C, while microplastic internal friction dominated the damping mechanism in the later part of the test.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Saumyadeep Jana, Matt Olszta, Danny Edwards, Mark Engelhard, Avik Samanta, Hongtao Ding, Pratik Murkute, O. Burkan Isgor, Aashish Rohatgi
Summary: Laser surface processing improved the corrosion resistance of AZ31 alloy by forming a mixed metal oxide surface film and refining the size and number density of intermetallic particles.
Article
Engineering, Electrical & Electronic
Hai Huang, Bin Chen, Xiaowu Hu, Xiongxin Jiang, Qinglin Li, Yinhui Che, Shuai Zu, Dingjun Liu
Summary: The effects of Bi additions on the properties of Sn-2Cu solder alloy were investigated. The addition of 5 wt% Bi improved the thermal properties, refined the microstructure, and increased the microhardness and tensile strength. Additionally, a dense passivation film formed on the alloy surface, providing excellent corrosion resistance.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Tianguo Wei, Xun Dai, Chongsheng Long, Chao Sun, Shaojun Long, Jiyun Zheng, Pengfei Wang, Yuzhen Jia, Junsong Zhang
Summary: In the Zr-1.0Sn-0.25Nb-0.2Fe-0.1Cr alloy, samples prepared by high temperature processing exhibit higher corrosion rate and hydrogen uptake fraction in the later stage of the corrosion test, due to the presence of larger second phase particles promoting the formation and propagation of cracks in the oxide scale.
Article
Materials Science, Multidisciplinary
Yuzhao Xu, Jingyuan Li, Mingfan Qi, Wenhui Guo, Yue Deng
Summary: This study investigated the influence of extrusion temperature on the microstructure, mechanical properties, and corrosion behavior of ZGMS alloy. The results showed that lower extrusion temperature led to refined grain size and improved mechanical properties. The alloy exhibited excellent mechanical properties and low corrosion rate after extrusion at 360 degrees Celsius.
MATERIALS CHARACTERIZATION
(2022)
Article
Chemistry, Applied
Tinghui Wang, Zhaokun Ma, Qihang Zhu, Lijing Yang, Baosheng Liu, Yu Zhao, Cheng Xu, Bizhang Zheng, Fangqin Hu, Jianzhong Li, Qingfang Huang, Zhenlun Song
Summary: The effect of Al on the diffusion of Tb in the grain boundary diffusion process (GBDP) of Nd-Fe-B magnets was investigated by adjusting the magnetron sputtering process. Results showed that Al promoted the diffusion of Tb and reduced the thickness of the shell in the core-shell structure. This study is important for developing the process, reducing the consumption of heavy rare earth elements (Tb), and improving the coercivity of sintered Nd-Fe-B magnets.
JOURNAL OF RARE EARTHS
(2023)
Article
Chemistry, Physical
Xudong Zhao, Xinxin Gao, Ya-Nan Zhang, Meihua Wang, Xinli Gao, Baosheng Liu
Summary: In this study, a novel metal-organic framework (MOF) containing dual sulfur sites was successfully constructed via an in-situ method. The newly synthesized DUT-67-SH exhibited high adsorption capacity and rapid adsorption kinetics for mercury ions (Hg2+), as well as excellent separation selectivity and regenerability under wide acidic pH range. The mechanism analysis indicated that the chemical bonding between sulfurs and Hg2+ was the main driving force. This work not only demonstrates the potential of DUT-67-SH as an adsorbent for Hg2+, but also provides new insights for introducing high-density sulfur sites in MOFs.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Review
Engineering, Environmental
Xiaohua Zhang, Ruyun Han, Yanzhen Liu, Hengxiang Li, Wenjing Shi, Xiaoyan Yan, Xinxin Zhao, Yongfeng Li, Baosheng Liu
Summary: This review summarizes the recent progress in the preparation methods of biomass-based porous graphitic carbon (BPGC), including activation, catalytic graphitization, and simultaneous activation-graphitization. The mechanisms of structure evolution during activation and graphitization are highlighted. The advances in optimizing and restructuring the microstructure of BPGC from 0D to 3D are presented. The structure-performance correlation of BPGC for supercapacitors is discussed, along with the challenges and opportunities for its further development in energy storage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Hugang Cui, Xiaoyan Yan, Baosheng Liu, Xudong Zhao, Xiaohua Zhang, Xinxin Zhao, Xili Tong, Yunwei Wang, Yali Xing
Summary: In this work, a novel Ni-NiO-C@CNT composite is designed and fabricated, which combines a new metal organic framework-Ni-Benzimidazole (Ni-PhIm) derived Ni-NiO-C and high conductive carbon nanotube (CNT). The Ni-NiO-C is synthesized by carbonizing Ni-PhIm, with benzimidazole as the organic ligand. The carbon skeleton of Ni-NiO-C provides active sites for adsorbing and anchoring polysulfides, and the uniformly dispersed Ni and NiO ensure the integrity of the redox process. The interconnected CNT networks contribute to fast electron transfer, resulting in remarkable electrochemical performance of the Ni-NiO-C@CNT@S electrode.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Metallurgy & Metallurgical Engineering
Bao-sheng Liu, Jia-li Li, Peng-fei Xu, Wen-jie Guo, Shao-hua Zhang, Yue-zhong Zhang
Summary: This article reviews the reason why low alloy steels are widely used in various fields, such as bridges, construction, chemical and equipment industries, due to their low cost and excellent mechanical strength. It also summarizes the preparation, advantages and disadvantages, applications, and research progress of various protective coatings suitable for low-alloy steel surfaces. Additionally, it discusses the characteristics of coatings drawn from the latest literature and suggests the simultaneous development of modified traditional metal coatings and new organic coatings, considering environmental protection, low cost, simplicity, and large-scale industrial application, to improve the understanding and overcome limitations in corrosion protection.
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
(2023)
Article
Engineering, Environmental
Xudong Zhao, Chengwei Zhang, Baosheng Liu, Huifang Zhao, Xinli Gao, Yuanyang Wang, Yuezhong Zhang, Dahuan Liu, Chong-Chen Wang
Summary: Conversion of wastewater to MOFs provides a feasible method for reducing MOFs cost and effectively reusing industrial wastewater. The obtained products exhibit excellent performance and adsorption capacity.
RESOURCES CONSERVATION AND RECYCLING
(2023)
Article
Chemistry, Physical
Mingli Zhang, Ran Pan, Baosheng Liu, Kaixuan Gu, Zeju Weng, Chen Cui, Junjie Wang
Summary: The effects of cryogenic treatment on the microstructure evolution and mechanical properties of 15%SiCp/2009 aluminum matrix composites were systematically investigated. Cryogenic treatment promoted the precipitation of the theta '' phase and accelerated the aging kinetics. The increase in dispersive precipitates after cryogenic treatment improved the hardness and yield strength of the composites.
Article
Crystallography
Zheng Wu, Baosheng Liu, Jiali Wei, Yuanxi Yang, Xudong Zhang, Junkai Deng
Summary: Through experiments and finite element simulations, we investigated the effects of porosity and pore distribution on the mechanical hysteresis behavior of porous Ti49.2Ni50.8 shape memory alloys (SMAs). The hysteresis reduces with increasing porosity in porous SMAs. The designed BCC-type ordered porous SMAs possess a narrower hysteresis loop with less energy dissipation, which is promising in applications for mechanical sensors or actuators.
Article
Metallurgy & Metallurgical Engineering
Bao-sheng Liu, Peng-fei Xu, Shao-hua Zhang, Yan-rui Li, Li-ming Mou, Jia-li Li, Yue-zhong Zhang, Pei-mao Fu, Fa-cai Shi
Summary: The corrosion mechanisms of 510L low alloy steel treated by ACS and EPS techniques in three simulated solutions were investigated. The results showed that the total corrosion rates were highest in industrial environment (S2), followed by atmospheric environment (S0), and lowest in soil environment (S1). The presence of HCO3- inhibited the initial corrosion, while HSO3- accelerated the dissolution of the matrix due to the synergistic action of HSO3- and Cl-. There was no significant difference in corrosion rates between the samples treated by ACS and EPS techniques.
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Deping Zhang, Boqiong Li, Chaojie Che, Baosheng Liu, Peng Cheng, Yali Zhao, Jinhui Zhang, Liren Cheng
Summary: High-quality large-sized EV31A benchmark alloy was produced through direct-chill casting, showing no significant composition segregation in the radial direction. The as-cast samples exhibited mechanical heterogeneity, with strength decreasing and ductility increasing from the surface to the center positions. However, after heat treatment, the mechanical properties became nearly uniform in each position, indicating mechanical homogeneity due to strengthening mechanism transition. Solute hardening was found to contribute more to high-temperature strength than precipitation hardening, and it exhibited thermal stability, extending to high temperatures.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Biochemistry & Molecular Biology
Zhiqiang Yu, Jiamin Xu, Baosheng Liu, Zijun Sun, Qingnan Huang, Meilian Ou, Qingcheng Wang, Jinhao Jia, Wenbo Kang, Qingquan Xiao, Tinghong Gao, Quan Xie
Summary: A simple hydrothermal process was used to synthesize α-Fe2O3 nanowire arrays with preferential growth orientation along the [110] direction. A W/a-Fe2O3/FTO memory device with nonvolatile resistive switching behavior was achieved. The device showed a resistance ratio (R-HRS/R-LRS) exceeding two orders of magnitude and preserved this ratio for more than 10(3)s without obvious decline. The carrier transport properties of the device were dominated by Ohmic conduction mechanism in the low resistance state and trap-controlled space-charge-limited current conduction mechanism in the high resistance state. The nonvolatile resistive switching behavior was suggested to be due to the formation and rupture of conducting nanofilaments modified by intrinsic oxygen vacancies. The α-Fe2O3 nanowire-based W/a-Fe2O3/FTO memory device has potential applications in next-generation nonvolatile memory devices.
Article
Materials Science, Composites
Ruishen Lou, Huimin Li, Baosheng Liu, Xianglin Chen, Yulin Wang
Summary: A two-scale method combining micro-CT is proposed to predict 3D printed continuous fiber reinforced thermoplastic composites. The method is verified by tensile experiments and uses micro-CT scans to reconstruct and quantify the distribution of voids and fibers. Two-scale models are established based on the scanned data. Effective properties of the fiber-rich region are predicted through micro-scale analysis and transferred to meso-scale analysis. Maintaining the overall fiber volume fraction, the accuracy of prediction relies heavily on the fiber volume fraction in the fiber-rich region.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Analytical
Zhiqiang Yu, Xu Han, Jiamin Xu, Cheng Chen, Xinru Qu, Baosheng Liu, Zijun Sun, Tangyou Sun
Summary: This paper analyzes the effect of nitrogen annealing on the resistive switching characteristics of the rutile TiO2 nanowire-based W/TiO2/FTO memory device. The W/TiO2/FTO memory device exhibits a nonvolatile bipolar resistive switching behavior with a high resistance ratio (R-HRS/R-LRS) of about two orders of magnitude. The conduction behaviors of the W/TiO2/FTO memory device are attributed to the Ohmic conduction mechanism and the Schottky emission in the low resistance state and the high resistance state, respectively. Furthermore, the R-HRS/R-LRS of the W/TiO2/FTO memory device is obviously increased from about two orders of magnitude to three orders of magnitude after the rapid nitrogen annealing treatment. In addition, the change in the W/TiO2 Schottky barrier depletion layer thickness and barrier height modified by the oxygen vacancies at the W/TiO2 interface is suggested to be responsible for the resistive switching characteristics of the W/TiO2/FTO memory device. This work demonstrates the potential applications of the rutile TiO2 nanowire-based W/TiO2/FTO memory device for high-density data storage in nonvolatile memory devices.
Article
Materials Science, Multidisciplinary
Shaohua Zhang, Tiantian Bian, Liming Mou, Xiaoyan Yan, Jinling Zhang, Yuezhong Zhang, Baosheng Liu
Summary: In this work, low-Cr steels with enhanced corrosion resistance by employing Ni and Mo alloying were self-designed to provide an alternative option compared to a common 3Cr steel in CO2 environments. The corrosion resistance mechanism was investigated by comprehensively evaluating corrosion behavior of three low-Cr steels exposed to CO2-saturated NaCl solutions over time periods of 6-168 h at 90 and 180 degrees C, involving electrochemical and immersion tests. The results indicate that the addition of Ni and Mo decreases general corrosion rates only in the early stages of corrosion, and FeCO3 crystals instead of inner Cr-enrichment films play a decisive role in retarding long-term general corrosion rates. On the other hand, localized corrosion behavior of low-Cr steels is obviously retarded by employing Ni and Mo alloying, in which non-reactive nickel occupies a large amount of vacancies and restricts the diffusion of corrosive species. In addition, Mo accelerates the enrichment of Cr during early stages of immersion and facilitates rapid re-passivation once films are broken, reducing the risks of perforation failure of pipelines.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Shuo Yu, Hui Yong, Yang Zhao, Shuai Wang, Yiwan Chen, Jifan Hu, Baosheng Liu, Yanghuan Zhang
Summary: The Mg90Ce5Y5 + x wt. % Ni MOF (x = 0, 3) composites were successfully prepared and the synergistic catalytic effects of Ni MOF catalyst doping and RE alloying on the hydrogen storage properties of pure Mg were investigated. The N3 sample exhibited an absorption of about 3.05 wt. % H2 at 473 K within 2 min, while the pure Mg showed almost no reaction under the same conditions. The Edes of N3 was calculated to be 69.0 & PLUSMN; 3.9 kJ/mol, much lower than that of pure MgH2 (160 kJ/mol). The improved hydrogen storage kinetics can be attributed to the CeH2.73 and YH2 phases providing nucleation sites and diffusion channels inside the particle, as well as the additional Ni active positions, defects, and cracks facilitating H2 dissociation/recombination generated by Ni MOF on the particle surface.
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)
