Article
Materials Science, Multidisciplinary
Usame Ali Usca, Serhat Sap, Mahir Uzun
Summary: This study investigates the machinability properties of hybrid reinforced copper matrix composite materials. The effects of different cooling/lubrication supports on surface roughness, flank wear, and cutting temperature were analyzed using CNC milling. The results show that cooling/lubrication has the most significant impact on these properties.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Engineering, Mechanical
Munish Kumar Gupta, Qinghua Song, Zhanqiang Liu, Murat Sarikaya, Mozammel Mia, Muhammad Jamil, Anil Kumar Singla, Anuj Bansal, Danil Yu Pimenov, Mustafa Kuntoglu
Summary: This research studied the quality indicators of machining alpha-beta titanium alloy under different cooling environments and found that liquid nitrogen cooling was more effective compared to dry and CO2 machining. Cryogenic cooling assisted machining has been confirmed as a sustainable strategy for environmental consciousness.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Automation & Control Systems
Anna Zawada-Tomkiewicz, Lukasz Zurawski, Dariusz Tomkiewicz, Filip Szafraniec
Summary: This article focuses on the impact of cryogenic cooling on tool wear during thread turning tests. Cutting tests with liquid nitrogen showed lower tool wear values on the major and minor tool flank, as well as reduced tool edge reduction during cryogenic machining. Experimental analysis using SEM and EDS confirmed the beneficial effect of cryogenic cooling on tool wear, particularly for titanium alloys.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Roland Bejjani, Elie Bachir, Charlie Salame
Summary: This research investigates the combined effect of cryogenic and ultrasonic-assisted turning on difficult-to-machine materials. Through FEM and CFD models, the interaction between the ultrasonic motion of the tool and the cryogenic impingement of the tool during the machining process is examined. The experimentation proves the effectiveness of the combined methods in reducing cutting forces and tool wear.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Yue Ren, Tingyi Yan, Zhuobin Huang, Qing Zhou, Ke Hua, Xiaolin Li, Yin Du, Qian Jia, Long Zhang, Haifeng Zhang, Haifeng Wang
Summary: This study demonstrates an improvement in wear resistance for a Ti-based bulk metallic glass composite at cryogenic temperatures. The wear resistance improvement is associated with the suppressed martensitic transformation and increased strength, making the material an excellent candidate for cryogenic wear applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Mathematics
Jinchi Xu, Xiaopeng Li, Renzhen Chen, Linlin Wang, Zemin Yang, Hexu Yang
Summary: The influence of the dynamic wear model considering tooth contact flash temperature on the gear-bearing system's dynamic characteristics was studied, leading to improved stability with increased fractal dimension D and increased instability with higher friction coefficient. Increasing the damping ratio made the system transition from unstable motion to stable periodic motion.
Article
Engineering, Mechanical
H. Yang, H. Li, H. Sun, Y. H. Zhang, X. Liu, M. Zhan, Y. L. Liu, M. W. Fu
Summary: The study investigates the anisotropic plasticity and fracture behavior of alpha titanium sheets at different temperatures, revealing the influence of temperature on the material's mechanical properties and fracture characteristics.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Materials Science, Multidisciplinary
Hongfei Wang, Chunyan Ban, Nannan Zhao, Lei Li, Qingfeng Zhu, Jianzhong Cui
Summary: In this study, pure titanium samples with a purity of 99.99 wt.% were successfully processed by ECAP at cryogenic temperature, leading to significant grain refinement and increased hardness. The activation of slip systems during deformation process was observed, and the influence of temperature on grain refinement was discussed. Factors affecting the homogeneity of microstructure were also analyzed.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Nanoscience & Nanotechnology
Min-Su Lee, A-Ra Jo, Sun-Kwang Hwang, Yong-Taek Hyun, Tea-Sung Jun
Summary: The study investigates the influence of strain rate and crystallographic texture on the hardening behavior and ductility of commercially pure titanium plate. Lower strain rate and cryogenic temperature lead to improved elongation and strain hardening, with a more significant effect observed at low temperatures.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Engineering, Chemical
Peng Cai, Meng Zhao, Bingbing Zhao, Gai Zhao, Fei Zheng, Lingli Ni
Summary: This study tested the tribological properties of drawn PTFE at room temperature and cryogenic temperature, finding correlations between orientation degree and worn surface morphology with friction and wear behaviors. It was observed that lubrication under liquid nitrogen temperature mitigated adhesive wear of drawn PTFE.
POLYMER ENGINEERING AND SCIENCE
(2022)
Article
Optics
Ching-Yu Hsu, Chia-Chin Chiang, Tso-Sheng Hsieh, Hsiang-Cheng Hsu, Liren Tsai, Chang-Hsiang Hou
Summary: This study evaluated the performance of titanium nitride-coated Fiber Bragg grating sensors in cryogenic temperature environments, demonstrating high temperature sensitivity and accuracy for precise measurements of temperature changes at low temperatures.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Kai Yao, Shewei Xin, Yi Yang, Yu Du, Jincai Dai, Ting Li, Xiaohua Min
Summary: The tensile behavior of metastable beta-type Ti-15Mo alloy with {332}<113> twinning-induced plasticity (TWIP) effect was investigated at 20K. It was found that the alloy exhibited ultrahigh strength and excellent elongation, making it a major advancement for cryogenic applications. The serrated tensile curve and multiple necking observed were attributed to the formation of twins. The presence of abundant {332}<113> twins and piled-up dislocations at twin boundaries hindered local plastic deformation and necking, resulting in simultaneous enhancement of strength and ductility. Exploiting the {332}<113> TWIP effect in body-centered cubic (BCC) structured titanium alloys is a novel strategy for cryogenic alloy development.
SCRIPTA MATERIALIA
(2022)
Article
Engineering, Mechanical
Jamal Choudhry, Roland Larsson, Andreas Almqvist
Summary: Wear is a complex phenomenon that is influenced by material and surface properties, operating conditions, and the surrounding environment. At the micro-scale, wear is the result of material removal due to plastic deformation and fracture. This study adopts a three-dimensional finite element model to simulate and investigate the main mechanisms of wear at the contacting asperities of a metal pair, taking into account thermal effects as well.
Article
Engineering, Electrical & Electronic
Jiahua Yang, Biao Yin, Xiaopeng Dong, Weixiong Huang, Yi Zou
Summary: Cryogenic technologies are crucial for future applications in aerospace, quantum computing, cryogenic computing, and superconducting research. This paper presents an extrinsic Fabry-Perot interferometer (EFPI) for cryogenic temperature measurement, which offers high sensitivity and excellent sensing repeatability throughout the temperature range from 5 K to 295 K.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Chemistry, Physical
Roland Bejjani, Charlie Salame, Mikael Olsson
Summary: This study focuses on optimizing cryogenic machining of aerospace titanium alloy Ti-6Al-4V by investigating the effect of nozzle position. The research shows that nozzle location significantly impacts cutting temperatures and forces, with the separation distance being the dominant parameter. Cryogenic machining is found to reduce adhesion-diffusion wear and macroscopic brittle chipping of cutting inserts compared to dry turning, while also improving workpiece surface roughness by 44%.
Article
Nanoscience & Nanotechnology
Ankur Sharma, Adityanarayan H. Pandey, Manoj K. Jangid, Velaga Srihari, Himanshu K. Poswal, Amartya Mukhopadhyay
Summary: A new concept of blocking Ni-migration pathway by Zn-doping in Li-layered cathode materials has been proposed, leading to significant improvement in high-voltage cyclic stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Anagha Pradeep, Bachu Sravan Kumar, Vaibhav Verma, Sushobhan Kobi, T. Nandakumar, Amartya Mukhopadhyay
Summary: This study investigates the effects of carbon-based reinforcements with different characteristics on the performance of "Bi-phase NTO"/carbon-based electrodes. Functionalized multi-walled carbon nanotubes (MWCNTs) with high aspect ratio and functional groups can provide complete coverage of Na-titanate surface, leading to significant improvements in electrochemical performance. However, pristine MWCNTs with fewer defects and functional groups have better electronic conductivity, resulting in the best rate capability. Carbon black performs poorly in terms of coverage and functionality.
Article
Engineering, Mechanical
Dewika Mishra, Rita Maurya, Vaibhav Verma, Kantesh Balani, K. V. Mani Krishna, Dinesh Srivastava, G. N. Ganesha, Utpal Singha, Amartya Mukhopadhyay
Summary: By studying the relative effectiveness of oil-based and graphene-based lubrications in suppressing friction and wear damage, it was found that graphene-based lubricant showed better performance and its effectiveness increased significantly with load.
Article
Chemistry, Inorganic & Nuclear
Anil K. Paidi, Ankur Sharma, Vinod K. Paidi, Mani Pujitha Illa, Kug-Seung Lee, Sangsul Lee, Docheon Ahn, Amartya Mukhopadhyay
Summary: A sol-gel route was used to prepare a NASICON-structured Na2ZrFe(PO4)3 material, which contains earth-abundant mixed transition metal ions and exhibits reversible electrochemical Fe2+/ Fe3+ redox and Na-intercalation/deintercalation properties. The material has a rhombohedral structure and shows outstanding cyclic stability, high Na-diffusivity, and good rate-capability through solid-solution pathway.
INORGANIC CHEMISTRY
(2023)
Article
Electrochemistry
Ajay Kumar, Dwaipayan Chakraborty, Zubair Nabi, Nilesh Wadibhasme, Rajiv O. O. Dusane, Priya Johari, Amartya Mukhopadhyay
Summary: Despite the potential use of silicon as an anode material in Na-ion batteries, little is known about the transport of Na in silicon. Through computational and experimental studies, we found that Na transport is hindered in crystalline silicon, but can be facilitated in amorphous silicon and nanoscaled silicon crystals. Our findings suggest that a combination of amorphous and crystalline silicon can enhance the stability and performance of sodium storage in Si-based anodes.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Article
Chemistry, Physical
Bachu Sravan Kumar, Anagha Pradeep, Velaga Srihari, Himanshu K. K. Poswal, Rahul Kumar, Amardeep Amardeep, Abhijit Chatterjee, Amartya Mukhopadhyay
Summary: By tuning the covalency of the transition metal-oxygen bond and adjusting the interslab spacing, the air/water-instability and structural-cum-electrochemical instability of layered Na-transition-metal-oxide-based cathode materials for Na-ion batteries can be simultaneously addressed. Lower covalency leads to stronger and shorter Na-oxygen bonds, reduced interslab spacing, and improved air/water-stability and electrochemical cyclic stability.
ADVANCED ENERGY MATERIALS
(2023)
Article
Anesthesiology
Kay Choong See, Salar Tayebi, Chew Lai Sum, Jason Phua, Johan Stiens, Robert Wise, Amartya Mukhopadhyay, Manu L. N. G. Malbrain
Summary: This study aimed to validate a novel non-invasive ultrasonographic approach to intra-abdominal pressure (IAP) measurement and compare it with the gold standard intra-bladder pressure (IBP) method. The results showed that the ultrasound-based IAP method displayed good correlation and agreement with IBP up to 15 mmHg, providing a reliable solution for quick decision-making in critically ill patients.
JOURNAL OF CLINICAL MONITORING AND COMPUTING
(2023)
Article
Medicine, General & Internal
Soo-Hoon Lee, Clarice Wee, Phillip Phan, Yanika Kowitlawakul, Chee-Kiat Tan, Amartya Mukhopadhyay
Summary: This study examines the differences in protocols and data elements between sending and receiving transfers in the ICU, as well as the elements constituting readiness for transfer. The findings show that the protocols and supporting data elements vary by the type of transfer and transferring unit, and readiness for transfer requires considering the data needs and resource constraints of the receiving unit.
Article
Chemistry, Physical
Ashok Kushwaha, Ankur Sharma, Bharat Bhushan Bhatt, Amartya Mukhopadhyay, Dipti Gupta
Summary: Here, we demonstrate the benefits of using inkjet printing technology to coat the Al current collector with a graphene layer to suppress corrosion. The graphene ink is prepared via solvent exfoliation, and a thin layer of graphene is coated on AlCC. The corrosion of the graphene-coated AlCC is significantly suppressed, resulting in excellent cyclic stability and capacity retention.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Pranay Gandharapu, Arpita Das, Rashmi Tripathi, Velaga Srihari, Himanshu K. K. Poswal, Amartya Mukhopadhyay
Summary: Tin-based anodes for sodium-ion batteries offer higher capacity and better safety, but suffer from poor cyclic stability. To address this, researchers used a mechanical-milling approach to incorporate bismuth with tin, resulting in well-dispersed electrode-active particles. The optimized Sn-Bi compositions showed excellent cyclic stability and rate capability, despite having fairly coarse particles. This study provides insights into the interplay between electrode-active components and paves the way for the development of high-performance and scalable anode materials for sodium-ion batteries.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Sushobhan Kobi, Ankur Sharma, Amartya Mukhopadhyay
Summary: The newly developed air-stable Al/Mg-co-doped LLZO possesses greater resistance to crack propagation, fracture stress, hardness and stiffness compared to simply Al-doped LLZO. It also exhibits a clean Li/LLZO interface without impurity phase and cracks, resulting in a very low area specific resistance. The Al/Mg-co-doped LLZO shows superior suppression toward Li-dendrite nucleation/propagation and stable long-term Li-stripping/plating.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Ceramics
Vaibhav Verma, Udit Kumar, Subrata Ghosh, Luv Gurnani, Amartya Mukhopadhyay
Summary: The dispersion and distribution of second phase particles in a polycrystalline ceramic microstructure affects its mechanical and tribological properties. By using an innovative sol-gel-based method, inter-/intragranular reinforcement can be achieved without physical mixing, leading to improved properties.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Electrochemistry
Rashmi Tripathi, Goektug Yesilbas, Xaver Lamprecht, Pranay Gandharapu, Aliaksandr S. Bandarenka, Rajiv O. Dusane, Amartya Mukhopadhyay
Summary: The expansion/contraction of Si-based anodes during lithiation/delithiation cycles can lead to capacity fade due to loss of mechanical integrity and instability of the SEI layer. The use of FEC as an electrolyte additive improves cyclic stability, Coulombic efficiency, and promotes smoother SEI formation compared to electrolytes without FEC. The EIS model fits well with impedance data, showing that FEC leads to decreased SEI resistance and improved stability.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Ishita Biswas, Bachu Sravan Kumar, Anagha Pradeep, Arpita Das, Velaga Srihari, Himanshu K. Poswal, Amartya Mukhopadhyay
Summary: By developing a high-rate-capable cathode material for Na-ion batteries, the substitution of Si4+ for Ti4+ in the transition metal layer has enhanced the Na-transport kinetics by weakening and lengthening the Na-O bond and enlarging the 'inter-slab' spacing.
CHEMICAL COMMUNICATIONS
(2023)
Article
Electrochemistry
Anagha Pradeep, Bachu Sravan Kumar, N. Abharana, T. Nandakumar, Amartya Mukhopadhyay
Summary: This study compares the stability of Na2Ti3O7, Na2Ti6O13, and Bi-phase NTO when exposed to air and water. The results show that Bi-phase NTO has superior air/water stability, and its use in aqueous processing provides further stability. This is significant for the storage and processing of Na-titanate based electrodes.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)