Article
Chemistry, Physical
Jaskaran Singh Saini, John P. Miska, Fuqiong Lei, Nicholas AuYeung, Donghua Xu
Summary: Metallic glasses, especially Hafnium based MGs, have superior properties to conventional crystalline metals/alloys, with HBMGs having the additional advantage of high density. However, their glass-forming ability is limited. Our discovery of two HBMGs with a critical casting diameter significantly higher than the current record allows for the production of bigger products and easier manufacturing/processing.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Multidisciplinary Sciences
Valerio Di Lisio, Isabella Gallino, Sascha Sebastian Riegler, Maximilian Frey, Nico Neuber, Golden Kumar, Jan Schroers, Ralf Busch, Daniele Cangialosi
Summary: The glass transition temperature of metallic glasses can be depressed by up to 40 K by reducing the sample size to below 10 & mu;m, allowing the attainment of glasses with low energy states. The properties of bulk metallic glasses are profoundly affected by reducing the sample size. By systematically reducing the length scale of gold and platinum-based metallic glasses, the vitrification behavior and atomic mobility were studied, revealing size-dependent vitrification kinetics in micrometer-sized glasses.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Y. H. Meng, S. Y. Zhang, W. H. Zhou, J. H. Yao, S. N. Liu, S. Lan, Y. Li
Summary: Structural relaxation and subsequent rejuvenation through thermal treatment can improve the plasticity and fracture toughness of metallic glasses. The recovery of loosely packed regions in the atomic structure during annealing contributes to the observed rejuvenation. Tailoring the mechanical properties of metallic glasses can be achieved by controlling the annealing and thermal treatment conditions.
Article
Metallurgy & Metallurgical Engineering
Kai Xu, Shuhong Liu, Keke Chang, Yongpeng Liang, Yong Du, Zhanpeng Jin
Summary: A thermodynamic model for long-period stacking ordered phases (LPSOs) was proposed based on Xs(6)XL(8)-type L1(2) clusters and chemical composition variations. The Mg-Y-Zn system with three LPSOs was studied using CALPHAD approach and first-principles calculations, predicting two new three-phase equilibria that were validated by key experiments. The model-based descriptions will serve as the foundation for research and development of magnesium alloys.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Materials Science, Multidisciplinary
Zhiyuan Huang, Jianan Fu, Xin Li, Wenxin Wen, Hongji Lin, Yan Lou, Feng Luo, Zhenxuan Zhang, Xiong Liang, Jiang Ma
Summary: This study presents a method of ultrasonic-assisted rapid cold welding of metallic glasses without using any additives, achieving stable bonding of MG interface under high-frequency ultrasonic vibration, low temperature and low stress conditions. The ultrasonic technology accelerates atomic diffusion process, enabling rapid bonding of different compositions of MGs and potential for tuning new materials with new performance.
SCIENCE CHINA-MATERIALS
(2022)
Article
Materials Science, Ceramics
Anatoly S. Arkhipin, Alexander Pisch, Georgii M. Zhomin, Semen V. Kuzovchikov, Alexandra V. Khvan, Natalia N. Smirnova, Alexey V. Markin, Nikita A. Kovalenko, Irina A. Uspenskaya
Summary: This study investigated the thermodynamic properties of a Ca12Al14O33 (C12A7) binary glass and the effects of titania additions (+5 and 7 wt%). Three different calorimetric techniques were used: low-temperature adiabatic, high-temperature drop solution, and transposed temperature drop calorimetry. The enthalpy of formation from oxides at 298.15 K and the enthalpy of dissolution of TiO2 (rut) at 1073.15 K were determined. The results showed that TiO2 additions had no influence on the heat capacity of C12A7, but caused a negative deviation of the enthalpy of formation from oxides.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Multidisciplinary
Zhishuai Jin, Fuyang Cao, Guanyu Cao, Chaojun Zhang, Ziao Qiu, Lunyong Zhang, Hongxian Shen, Sida Jiang, Yongjiang Huang, Mingzhen Ma, Eckert Juergen, Jianfei Sun
Summary: This study investigates the solidification dynamics during casting of a Zr41.2-Ti13.8Cu12.5Ni10Be22.5 BMG by measuring temperature evolution and constructing distance-time curves. The results show that the casting temperature plays a crucial role in the cooling rate and the formation of nanocrystal phases in BMG components, emphasizing the importance of optimizing the casting temperature for fabrication of BMG components.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Yong Hak Kim, Ka Ram Lim, Dong-Won Lee, Yoon Suk Choi, Young Sang Na
Summary: The study suggests that the density of flow units in metallic glass is mainly affected by the final cooling rate rather than the quenching temperature.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Thermodynamics
W. Gierlotka, A. Debski, M. Zabrocki, A. Goral, W. Gasior
Summary: The limiting enthalpy of solution of liquid germanium in liquid tin and the thermodynamic properties of intermetallic phases in the Ge-Li system were studied. Based on experimental measurements and calculations, the Ge-Li phase diagram was determined.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2022)
Article
Chemistry, Physical
Pavel A. Arkhipov, Olga Grishenkova, Anna S. Kholkina
Summary: The paper introduces an improved construction of the electrochemical cell and an optimized technique for measuring the EMF of liquid metallic alloys, increasing the reliability of experimental values. The proposed extensions allow studying multiple alloy compositions simultaneously and provide a simplified procedure for calculating integral thermodynamic functions. The results confirm the potential of these techniques for determining thermodynamic characteristics without experimental study.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Ceramics
Qi Qiao, Zhengqing Cai, Ji Wang, Zijing Li, Shidong Feng, Zhen-Qiang Song, Li-Min Wang
Summary: The effects of adding niobium (Nb) on the glass-forming ability and mechanical properties of (Zr40Ti40Ni20)72Be28 bulk metallic glasses (BMGs) alloy system were studied. The addition of appropriate amounts of Nb weakens, then enhances the glass-forming ability of the alloy system and improves its thermal stability. Mechanical tests show that the addition of Nb enhances the room-temperature plasticity of the alloys, with a significant increase in compression deformation.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Multidisciplinary
A. Lindsay Greer, Miguel B. Costa, Owain S. Houghton
Summary: There have been remarkable advances in the field of metallic glasses over the last 50 years, including an expanded range of compositions, improved production and shaping techniques, and the discovery of property combinations offering unparalleled performance. Ongoing research continues to provide fundamental insights into the structure and properties of glasses and liquids. This article focuses on the latest advances in understanding and the rapidly expanding prospects for applications.
Article
Materials Science, Multidisciplinary
Xiaoyu Wu, Xining Li, Xue Li, Shengli Li
Summary: Fe-based bulk metallic glasses with the addition of Sn showed improved plastic deformation ability due to the separation of Sn atoms from Si-, B- and P-centered clusters, which resulted in an increase in metal-metal bonds and filling of voids. The best plastic deformation ability was achieved with 0.3 at% Sn addition, increasing from 0.7% to 2.2%, with a yield strength of 3150 MPa.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Karl F. Shamlaye, Joerg F. Loeffler
Summary: This study presents a series of new Mg-Ag-Y and Mg-Ag-Y-Cu bulk metallic glasses designed to achieve Mg-rich ductile glasses. The alloys tested showed compressive ductility with plastic strains ranging from 0.6% to about 0.8% with minor amounts of Cu. The study also reports on the alloy design methodology, critical casting size, thermophysical properties, and compression test data of the new alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Arseniy Berezner, Victor Fedorov
Summary: This work derives the main thermodynamic relationships and calculates parameters for describing non-linear thermo-mechanical deformation at dynamic mechanical analysis (DMA). The obtained equations and values are in agreement with experiments on different ribbon metallic glasses. The proposed model can be applied to investigate DMA in different materials and has potential applications in phase transitions in metallic glass.
Review
Materials Science, Multidisciplinary
K. Guruvidyathri, K. C. Hari Kumar, J. W. Yeh, B. S. Murty
Article
Materials Science, Ceramics
Joysurya Basu, S. Vincent, B. S. Murty, M. J. Kramer, Jatin Bhatt
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2017)
Article
Materials Science, Ceramics
K. Akkiraju, S. Kashyap, Ajeet K. Srivastav, Niraj Chawake, L. Bichler, B. S. Murty
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2017)
Article
Materials Science, Multidisciplinary
Anirudha Karati, B. S. Murty
Article
Nanoscience & Nanotechnology
U. Athul Atturan, Sree Harsha Nandam, B. S. Murty, S. Sankaran
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2017)
Article
Materials Science, Multidisciplinary
N. S. Karthiselva, Sanjay Kashyap, Devinder Yadav, B. S. Murty, Srinivasa R. Bakshi
PHILOSOPHICAL MAGAZINE
(2017)
Article
Metallurgy & Metallurgical Engineering
M. Srinivas, Archana Paradkar, B. S. Murty, Bhaskar Majumdar
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
(2018)
Article
Materials Science, Multidisciplinary
Mayur Vaidya, Anil Prasad, Abhinav Parakh, B. S. Murty
MATERIALS & DESIGN
(2017)
Article
Materials Science, Multidisciplinary
Chanchal Ghosh, Joysurya Basu, Arup Dasgupta, R. Divakar
JOURNAL OF MATERIALS SCIENCE
(2018)
Article
Multidisciplinary Sciences
M. Vaidya, K. G. Pradeep, B. S. Murty, G. Wilde, S. V. Divinski
SCIENTIFIC REPORTS
(2017)
Article
Materials Science, Multidisciplinary
Ankit Singh, Maurya Sandeep Pradeepkumar, Deepak Kumar Jarwal, Satyabrata Jit, Sandip Bysakh, Md Imteyaz Ahmad, Joysurya Basu, R. K. Mandal
Summary: The atomic arrangements and structures of thermally evaporated Au/Cu multilayer thin films on polycrystalline Si substrate have been explored, revealing that the Cu layer is amorphous and the Au layer is polycrystalline with columnar structure. Localized amorphous phase forms at the Cu-Si interface, while interfaces of Au-Cu are wavy and Cu-Au interface shows diffusionally grown ordered phases.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Avnish Singh Pal, Aman Kumar Lal Das, K. Gururaj, M. Sadhasivam, Kevin M. Knowles, Md. Imteyaz Ahmad, K. G. Pradeep, Joysurya Basu
Summary: Self-assembled chessboard-like nanostructures in oxides have been studied, revealing a complex evolution process involving twinning, subdomain formation, and domain coalescence. These nanostructures can exist in both 2D and 3D forms.
Article
Chemistry, Physical
Aman Kumar Lal Das, Avnish Singh Pal, Gaurav Dilip Rout, Joysurya Basu
Summary: Phase and microstructure evolution in as-solidified semi-Heusler NiMnSb and NiMnSbV alloys were studied. The as-solidified NiMnSb alloy contained cubic semi-Heusler phase, while the NiMnSbV alloy contained Frank-Kasper cubic SbV3 phase and semi-Heusler NiMnSb phase. Nucleation and growth of SbV3 phase occurred through solute rejection mechanism, resulting in a lamellar structure at the interface of SbV3 and NiMnSb phases. The stability of the phases and the formation of defects were analyzed, and Miedema's model was used to study the phase formation and stability in these alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Chemical
B. Bhushan, B. S. Murty, K. Mondal
ADVANCED POWDER TECHNOLOGY
(2017)
Article
Physics, Multidisciplinary
V. R. Mudinepalli, F. Leng, M. P. Reddy, W. C. Lin, B. S. Murty
INDIAN JOURNAL OF PHYSICS
(2016)
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)