Article
Engineering, Chemical
Ivana Bunjan, Kresimir Grilec, Danko Coric
Summary: Aluminum foams reinforced with different steel elements were produced using the AluLight process, and their compression performance was tested. The study found that cylindrical steel mesh had the best effect on energy absorption and efficiency.
Article
Chemistry, Physical
Dipen Kumar Rajak, Emanoil Linul
Summary: The emerging demand for lightweight materials has impacted industries such as biomedical, marine, and space applications, with factors like relative density and silicon carbide particles playing significant roles. Experimental investigations on newly developed composite metallic foams (CMFs) showed that compressive properties are strongly influenced by factors including strain rate, relative density, and microstructure. The Analysis of Variance technique revealed that strain rate has the highest impact on the strength properties and energy absorption performance of CMFs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Jun Wei Chua, Xinwei Li, Tao Li, Beng Wah Chua, Xiang Yu, Wei Zhai
Summary: This study successfully produced functionally graded foam made of Inconel 625 superalloy and proposed methods to improve sound absorption performance. The sound absorption effects can be customized by various permutations of foam layers, adjusting the thickness proportion of pore sizes, and increasing the number of distinct pore sizes used. This study provides valuable insights and mathematical guidelines in the design and manufacturing of functionally graded metallic foam for specific applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Kathleen Dammler, Katja Schelm, Ulf Betke, Tobias Fey, Michael Scheffler
Summary: Alumina replica foams with additional strut porosity were successfully manufactured using freeze-drying and ice-templating techniques. These foams demonstrated improved surface area for active coatings while maintaining good flow properties. Adjusting process parameters during freeze-drying allows for control over the properties of introduced pores, contributing to the achievement of ceramic foams with satisfactory mechanical strength.
Article
Chemistry, Physical
Yang Yu, Zhuokun Cao, Jiaqi Wang, Ganfeng Tu, Yongliang Mu
Summary: The study investigated the effect of increased pressure on the mechanical properties of Al-TiB2 composite foams and found that higher pressure leads to smaller cell size and narrower size distribution range. Under the same pressure, the stress fluctuation of 10TiB(2) foams is greater than that of 5TiB(2) foams, and cell size refinement enhances the energy absorption efficiency and specific energy absorption.
Article
Materials Science, Multidisciplinary
Kartheek. S. M. Sonti, S. Vincent, Suresh Kumar Reddy Narala
Summary: Aluminum matrix syntactic foams (AMSF) are lightweight composite foams with low density and high energy absorption properties, making them desirable for energy absorption in automotive, aerospace, and shipbuilding industries. This study focuses on the energy-absorbing behavior of alumina-reinforced aluminum syntactic foams. The results showed that the compressive stress-strain response is influenced by the volume fraction and temperature, with maximum densification strain and energy absorption efficiency observed at room temperature (58% and 70.61%) and elevated temperature (55% and 75.77%) conditions. Despite large deformation, no sudden drop in stress-strain response and macroscopic stability were observed.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Construction & Building Technology
Shunze Cao, Yang Lu, Nan Ma, Yang Tao, Yuwu Zhang
Summary: This study investigates the mechanical behaviors and dynamic stress enhancement mechanisms of thermoplastic polyethylene foams reinforced by glass beads (GBs). The results show that increasing loading rates lead to more pronounced strain and stress localizations, contributing to enhancements of elastic properties and plastic stress of GBs reinforced foams. Additionally, the volume fraction of glass beads and polymer have negative and positive influence on the energy absorption efficiency of the foams, respectively.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Energy & Fuels
David Oluwasegun Afolayan, Adelana Rasak Adetunji, Azikiwe Peter Onwualu, Oghenerume Ogolo, Richard Kwasi Amankwah
Summary: This study evaluated the suitability of locally sourced barite in Nigeria for drilling fluid formulation and found that it had lower iron, lead, cadmium, and copper content compared to industrially accepted barite. The specific gravity and hardness of the locally processed barite increased, meeting industry standards.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Han Li, Xi Peng, Jiayi Li, Lei Li, Dan Hu, Yingling Xiang, Linpei Han, Zhonghui Xu
Summary: This study investigates the physical properties and fire resistance of wollastonite-metakaolin-based geopolymer foams (WMGFs), revealing that the addition of wollastonite significantly improves both compressive and flexural strengths, as well as influences foaming process and thermal conductivity. The results show that wollastonite-reinforced geopolymer foams exhibit extraordinary mechanical strength and fire resistance, with the reduction in thermal conductivity having no negative impact on fire protection.
Article
Mechanics
Mohammad Rauf Sheikhi, Selim Gurgen
Summary: This study enhances the energy absorption performance of multi-layer composites by introducing shear thickening fluid (STF), which results in increased energy absorption capacity and rates, as well as reduced impact forces. The specific structure Config12 is shown to be the most effective design, distributing impact energy throughout the entire structure during impact.
COMPOSITE STRUCTURES
(2022)
Article
Polymer Science
Ajay Katiyar, Tandra Nandi, N. Eswara Prasad
Summary: Two types of shear thickening fluids were synthesized and their viscosity curves were obtained, with the surface functionalized nanosilica based fluid showing high viscosity suitable for impregnation into Kevlar for velocity impact study. Experimental results demonstrated higher energy absorption in Kevlar impregnated with shear thickening fluid, with a maximum energy absorption of 62 J at an initial velocity of 154 m/s. The findings have implications for the fabrication of shear thickening fluids for various applications such as soft armors and nanofinishing.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Thermodynamics
Qian Ding, Hao Fu, Chaoran Hua, Xinman Jiang, Jia Yu, Keming Zhu
Summary: This study investigates the crystallization behavior, melting characteristics, and semicrystalline morphologies of wollastonite-filled recycled polypropylene (R-PP) composites with and without beta-nucleating agent. The addition of beta-nucleating agent can significantly increase the beta-phase content in wollastonite-filled R-PP composites, providing an effective method for achieving high value-added and low-cost recycling of R-PP.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Engineering, Multidisciplinary
Kresimir Grilec, Ivana Bunjan, Suzana Jakovljevic
Summary: Aluminium foams are composite materials with cellular structure made of aluminium or aluminium alloys. They are produced by mixing Al powder with a blowing agent to release gas at higher temperatures. The energy absorption capacity of aluminium foams increases with higher density under increasing force.
TEHNICKI VJESNIK-TECHNICAL GAZETTE
(2021)
Article
Engineering, Mechanical
Xin Zhang, Pengfei Wang, Anatoli Kurkin, Qian Chen, Xinglong Gong, Zhong Zhang, En-Hua Yang, Jinglei Yang
Summary: The study found that the strength and modulus of STF-filled tubes increase with strain rate, and the energy absorption capacity also increases with the input impact energy.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Materials Science, Composites
Jialun Cheng, Lin Ye, Kunkun Fu, Hongjian Wang
Summary: This study found that the shape of the striker affects the energy absorption of STF, with flat-head strikers showing higher total impact energy absorption but lower maximum penetration depth compared to cone-shaped strikers. Additionally, as the diameter of the striker increased, the total impact energy absorption also increased with a decrease in penetration depth.
COMPOSITES COMMUNICATIONS
(2021)
Article
Metallurgy & Metallurgical Engineering
Victor P. Hugo Gutierrez, R. Alejandro Cruz, Jose S. Antonio Romero, Jorge S. Enrique Rivera
RUSSIAN JOURNAL OF NON-FERROUS METALS
(2015)
Article
Metallurgy & Metallurgical Engineering
Angelica Sanchez M, Victor Hugo Gutierrez P, Alejandro Cruz R, Ricardo Gerardo Sanchez A
RUSSIAN JOURNAL OF NON-FERROUS METALS
(2016)
Article
Materials Science, Multidisciplinary
A. Sanchez, A. Cruz, J. E. Rivera, J. A. Romero, M. A. Suarez, V. H. Gutierrez
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2018)
Article
Materials Science, Multidisciplinary
Jorge Enrique Rivera-Salinas, Victor Hugo Gutierrez-Perez, Mariza Vargas-Ramirez, Karla Monzerratt Gregorio-Jauregui, Alejandro Cruz-Ramirez, Felipe Avalos-Belmontes, Jose Carlos Ortiz-Cisneros, Jose Concepcion Escobedo-Bocardo
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
(2014)
Article
Materials Science, Multidisciplinary
Victor Hugo Gutierrez Pereza, Marissa Vargas Ramirez, Alejandro Cruz Ramirez, Jose Antonio Romero Serrano, Jorge Enrique Rivera Salinas
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
(2014)
Article
Metallurgy & Metallurgical Engineering
V. H. Gutierrez-Perez, A. Cruz-Ramirez, M. Vargas-Ramirez, E. Palacios-Beas, R. G. Sanchez-Alvarado
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2014)
Article
Materials Science, Multidisciplinary
Jorge E. Rivera-Salinas, Karla M. Gregorio-Jauregui, Jose A. Romero-Serrano, Alejandro Cruz-Ramirez, Ernesto Hernandez-Hernandez, Argelia Miranda-Perez, Victor H. Gutierrez-Perez
Article
Chemistry, Physical
Victor H. Gutierrez Perez, Seydy L. Olvera Vazquez, Rocio Santos Madrid, Rafael Regino Pina, Alejandro Cruz Ramirez, Jorge E. Rivera Salinas, Daniel I. Alaniz Hernandez
Summary: This study aimed to analyze the impact of Cu2+ and Pb2+ ion concentrations in the flotation process water on the activation of sphalerite. The analysis was conducted in the flotation circuit of Cozamin Mining. The results demonstrated that (i) there was a correlation between the use of Sodium Cyanide and Ammonium Bisulfite as depressants and the contents of Cu2+ and Pb2+ ions in the process water; (ii) a relationship was also found between the lead and iron content in the head and the presence of Pb2+ ions in the process water; (iii) based on the data and analysis, it was possible to reuse the process water by reducing the use of Ammonium Bisulfite and replacing Sodium Cyanide with Zinc Sulfate as a depressant for Sphalerite, and also controlling the concentration of Cu2+ and Pb2+ ions in the water within a range of 10 to 20 ppm and 0.10 to 0.20 ppm, respectively.
PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING
(2022)
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)