Article
Materials Science, Multidisciplinary
M. Ghidelli, A. Orekhov, A. Li Bassi, G. Terraneo, P. Djemia, G. Abadias, M. Nord, A. Beche, N. Gauquelin, J. Verbeeck, J-P Raskin, D. Schryvers, T. Pardoen, H. Idrissi
Summary: A novel class of nanostructured Zr50Cu50 metallic glass films with superior and tunable mechanical properties has been produced by pulsed laser deposition. These films exhibit a unique nano-architecture characterized by dense self-assembled nano-laminated atomic arrangement alternating Cu-rich and Zr/O-rich nanolayers with different local chemical enrichment and amorphous or amorphous-crystalline composite nanostructure. These films show outstanding mechanical properties, including large hardness and elastic modulus, and excellent strength/ductility balance, which can be tuned by modifying the film architecture.
Article
Chemistry, Physical
Debasrita Bharatiya, Biswajit Parhi, Sarat K. Swain
Summary: In this study, a GO-based ZnO, CuO, and Ag2O mixed ternary nanostructured composite was developed using a simple sol-gel synthesis approach, showing enhanced dielectric properties and potential charge storage applications. Physio-chemical characterization techniques were used to study the properties of the composite, highlighting its remarkable dielectric and charge storage capabilities.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
S. Lv, J. S. Li, S. F. Li, N. Kang, B. Chen
Summary: This study investigated the effect of heat treatment on the interfacial bonding in titanium matrix composites reinforced with carbon fibers. Results showed that the best mechanical properties were achieved at a heat treatment temperature of 900 degrees C. Suitable interfacial reaction and fine grain size were identified as critical factors for obtaining high-performance CFs/TMCs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Maciej Wedrychowicz, Wladyslaw Papacz, Janusz Walkowiak, Adam Bydalek, Andrzej Piotrowicz, Tomasz Skrzekut, Jagoda Kurowiak, Piotr Noga, Miroslaw Kostrzewa
Summary: This article discusses the possibility of obtaining a solid plate from waste cable sheaths through mechanical recycling, specifically grinding, plasticising and pressing. The experiment shows that the resulting solid plate does not significantly differ from the input material in terms of mechanical strength, indicating the successful application of this promising waste cable processing method in industrial practice.
Article
Chemistry, Multidisciplinary
Youngkyu Hwang, Anupam Sadhu, Sangho Shin, Shin Woei Leow, Ze Zhao, Jingyu Deng, Joshua A. Jackman, Munho Kim, Lydia H. Wong, Nam-Joon Cho
Summary: This study reports the fabrication of a flexible substrate made from pollen, which exhibits high transparency (>92%) and high haze (>84%), with optical properties that are tunable and arise from light-matter interactions with the spiky surface of pollen particles. The pollen substrate, readily obtained from nature and requiring minimal extraction or processing, can be incorporated into optoelectronic applications such as functional perovskite solar cells.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Zhijie Cao, Michael Felderhoff
Summary: Ytterbium tetrahydroaluminate Yb(AlH4)3 was successfully synthesized via a mechanochemical procedure under hydrogen atmosphere, with its thermal decomposition proceeding through four stages. The first dehydrogenation step exhibited a relatively low apparent activation energy, while rehydrogenation tests showed unsuccessful rehydrogenations of the first decomposition step.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Takumi Nakano, Toshihiko Maeda, Takeshi Fujita, Aichi Yamashita
Summary: The substitution effects of 3d transition metal elements (Fe, Co, and Zn) on the Cu site in (Pb,Cu)-1-2-0-1 were investigated, resulting in the successful synthesis of new materials (Pb0.5M0.5)(Sr0.75La0.25)2CuOz (M = Fe and Co) and (Pb0.5Zn0.5)(Sr0.5La0.5)2CuOz. Superconductivity was only observed in the case of M = Zn.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Maxim Shtern, Alexey Sherchenkov, Yury Shtern, Nikolay Borgardt, Maxim Rogachev, Alexey Yakubov, Alexey Babich, Dmitry Pepelyaev, Irina Voloshchuk, Yuliya Zaytseva, Svetlana Pereverzeva, Alexander Gerasimenko, Dmitry Potapov, Denis Murashko
Summary: Bulk nanostructured n-type PbTe and p-type Ge0.96Bi0.04Te were prepared by grinding and spark plasma sintering, and their mechanical properties were investigated. The nanostructured materials showed higher mechanical properties compared to the synthesized materials, and grinding time had a small effect on their properties. The efficiency of the nanostructured materials was 10-14% higher than that of the materials obtained by hot pressing. The thermal stability of the materials was influenced by temperature and time, and protective coatings were necessary for long-term use.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Linda Abbassi, David Mesguich, Loic Coulomb, Geoffroy Chevallier, Romain Aries, Claude Estournes, Emmanuel Flahaut, Romain Viennois, Mickael Beaudhuin
Summary: In this paper, a simple route to synthesize nano-beta-FeSi2 material is reported. The impact of spark plasma sintering parameters on the material properties is studied. Experimental results show that high-density nano-beta-FeSi2 pellets can be obtained using this method in a short time.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Materials Science, Multidisciplinary
Ruslan Z. Valiev, Boris Straumal, Terence G. Langdon
Summary: The past decade has seen significant advances in severe plastic deformation techniques, leading to the development of new and superior properties in various materials. The concept of nanostructural design for metals and alloys has been proposed to enhance material performance and applications.
ANNUAL REVIEW OF MATERIALS RESEARCH
(2022)
Article
Chemistry, Physical
Andrei Novitskii, Illia Serhiienko, Andrei Nepapushev, Alexandra Ivanova, Tatyana Sviridova, Dmitry Moskovskikh, Andrei Voronin, Hiroyuki Miki, Vladimir Khovaylo
Summary: Heusler alloys have gained attention for their low toxicity, mechanical and thermal stability, relative abundance, and potential for thermoelectric power generation. The study demonstrates that the TiFe2Sn full-Heusler alloy can be obtained through mechanochemical synthesis and spark plasma sintering. By studying the influence of processing parameters, it was found that the mechanochemically processed TiFe2Sn alloy has comparable thermoelectric properties to conventionally synthesized TiFe2Sn alloy. The results suggest that mechanochemical synthesis is a convenient, scalable, and cost-effective method for preparing TiFe2Sn Heusler alloys.
Article
Chemistry, Multidisciplinary
Askhat Berguzinov, Artem Kozlovskiy, Ainagul A. Khametova, Dmitriy I. Shlimas
Summary: This work studied the properties of nanostructured (1 - x)ZrO2 - xCeO2 composite ceramics and established the relationship between the phase composition and strength properties. The variation of oxide components led to phase transformations, strengthening the ceramics and increasing crack resistance. The change in phase composition and displacement of ZrO2 phase significantly enhanced the ceramics by more than 3.5-4 times and improved resistance to cracking by more than 2.5 times.
Article
Materials Science, Multidisciplinary
C. Suryanarayana, Ahmed A. Al-Joubori, Zhi Wang
Summary: The technique of mechanical alloying has evolved from producing superalloys for aerospace to synthesizing a wide range of advanced materials, such as nanostructured materials and nanocomposites. This process involves repeated cold welding, fracturing, and rewelding of powder particles to enhance alloy formation. The resulting materials can include supersaturated solid solutions, intermetallics, quasicrystalline alloys, high-entropy alloys, amorphous alloys, and composites, with most having nanometer-sized grain structures.
METALS AND MATERIALS INTERNATIONAL
(2022)
Review
Biochemistry & Molecular Biology
Tatiana A. Akopova, Tatiana N. Popyrina, Tatiana S. Demina
Summary: This study reviews the application of mechanochemical approaches to modify polysaccharides. The considered approach is characterized by the ability to avoid toxic solvents, initiators, or catalysts, aligning with current global trends. Examples using various polysaccharides and their derivatives are used to analyze the mechanisms of chemical transformations, the structure and properties of the products, their solubility and swelling in different media, and their ability to self-organize and stabilize nanodispersed inorganic particles and biologically active substances.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Materials Science, Ceramics
Yu Zhang, Jinyun Xu, Ziqi Zhang, Liping Zhao, Ming Li, Minjing Li, Di Zhao, Guoqiang Zhong, Xudong Hu, Xiaojun Zhang, Wenju Zhu, Chunming Zheng, Xiaohong Sun
Summary: Mechanochemical synthesis is a technology that stimulates chemical reactions and enables structural and phase changes through the application of mechanical energy. It is a relatively safe, clean, and efficient method. Mechanochemical methods have attracted widespread attention in the synthesis of oxide ceramic materials, which have certain influences on the characteristics of ceramic powder and present both challenges and opportunities.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
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)