Effects of annealing temperature on structure and magnetic properties of mechanically alloyed Cu–Fe–Ti system Gurudas Mandal, Guojun Ma, Atul Bandyopadhyay, Sandip Kunar, Arijit Sinha, Madhumita Nath, Arghya Gupta, Sumit Chabri Journal of Materials Research and Technology, 2025 50Cu-40Fe-10Ti (wt. %) ternary alloy was synthesized using mechanical milling technique, aimed to enhancing both its solubility and magnetic behavior. A systematic investigation was conducted to explore the role of Ti content on the extent of Fe solubility within Cu matrix and its consequent impact on the magnetic behavior of the alloy. The structural, morphological, and magnetic properties of the alloy were comprehensively characterized using a combination of advanced analytical techniques including X-ray diffraction (XRD), differential thermal analysis (DTA), high-resolution transmission electron microscopy (HRTEM), and superconducting quantum interference device (SQUID) measurements. According to the findings of the current investigation, the synthesized alloy was completely soluble in solid solution after 50 hrs of milling. Following annealing at 450°C for 1 hour, the resulting ball-milled alloy consisted predominantly of elemental copper, iron, and titanium, along with their corresponding oxides, as determined by quantitative phase analysis using X-ray diffraction. Moreover, the magnetic characteristics viz., coercivity, remnant magnetization and saturation magnetization attain their maximum values at around 401 Oe, 13.9 emu/gm and 49 emu/gm, respectively, obtained in the ball milled alloy after annealing at 450°C for 1 hour. These results demonstrate a tunable balance between magnetic hardness and saturation. Simulation revealed a Curie temperature of 175 K for the alloy, marking the transition from ferromagnetic to paramagnetic behaviour and defining the temperature range for stable magnetic performance. By optimizing mechanical milling and annealing parameters, ternary alloys can be tailored to meet the specific requirements of diverse technological applications. This work provides new insights about phase evolution, crystallite growth and strain relaxation directly influence magnetic behavior, such as saturation magnetization and coercivity.
Solubility and magnetic properties of Ag−Co−Si alloy synthesized by mechanical alloying and annealing S. Chabri Materialwissenschaft Und Werkstofftechnik, 2024 This present work concerns the effect of ternary addition of non‐metallic and diamagnetic silicon on the metastable solubility of the immiscible silver‐cobalt system during the course of ball milling, annealing of the ball milled samples and the corresponding magnetic properties. It should be noted that silicon has a smaller goldsmidt radius (111 pm) than silver (144 pm) and silicon+4 has more valence electrons than silver+1. Keeping the objectives of the current study in mind, silicon may thus be considered as an option for ternary addition, in contrast to metallic components. An attempt has been made to examine the phase changes that occurred in the 50 silver‐40 cobalt‐10 silicon (atom percent) system during ball milling and the subsequent isothermal annealing of the ball milled product. Phase evolution during mechanical alloying and isothermal annealing is identified by means of x‐ray diffraction, differential thermal analysis, high resolution transmission electron microscopy and magnetic measurements. The addition of silicon facilitates cobalt‘s formation of a metastable alloy with copper after 50 hours of ball milling. Annealing significantly improves the magnetic characteristics of materials that have been ball milled; the optimal combination of magnetic properties was obtained after an hour of annealing at 550 °C.
Magnetic Properties and Microstructure of an Isothermal Annealed and Mechanically Milled Nanocrystalline Ag-Mn Alloy Sumit Chabri International Journal of Nanoscience, 2024 The alloy 50Ag–50Mn (wt.%) was prepared using ball milling. After 50 h of milling, the samples were isothermally annealed for 1 h at a time at three different temperatures ranging from 350[Formula: see text]C to 550[Formula: see text]C. By analyzing the X-ray diffraction data, Rietveld refinement structure analysis was used to measure the lattice strain and crystallite size. The introduction of lattice strain and the decrease in crystallite size as a function of milling time may both contribute to the increase in coercivity. The analysis of superconducting quantum interference devices demonstrates the soft ferromagnetic behavior of as-milled and annealed Ag–Mn alloy. After being annealed at 350[Formula: see text]C for 1 h, the 50Ag–50Mn alloy’s maximum coercivity was discovered to be 253 Oe.
Investigating phase and magnetic properties in Co-2 wt.% MWCNT nano-composites prepared by mechanical alloying Pinjal Pandit, Swasata Ghosh, Goutam Roy, Arpita Chatterjee, Susmita Singh, Sumit Chabri Proceedings of the Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering, 2024 MWCNT nano-composites with a cobalt content of 2 weight percent were created by mechanically alloying during different times. Modern techniques, including x-ray diffraction (XRD), differential thermal analysis (DTA), field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM) and superconducting quantum interference device (SQUID), were used to examine the effects of CNT addition on the Co morphology and magnetic characteristics of the samples. It was shown that the characteristics of Co in 2 weight percent MWCNT nano-composites were retained in a sample that was milled for 60 min. Agglomerates of nanoparticles were the end result, with CNTs evenly distributed throughout the cobalt matrix 60 min after mechanical alloying. Analysis of magnetic hysteresis loops revealed that the inclusion of CNTs altered the magnetic characteristics of nano-composite samples. Analysis of magnetic hysteresis loops revealed that the inclusion of CNTs altered the magnetic characteristics of nano-composite samples. The well-developed interfacial structure in this work significantly improved the cobalt-MWCNT nano-composites’ magnetic characteristics.
Analysis of the von Mises Stress for Edge and Embedded Cracks in Statically Loaded Planar Elements Amartya Bose, B. Panja, S. Chabri, Akhtarujjaman Sarkar, Ankesh Samanta, Goutam Roy Nanoworld Journal, 2023 The present study is based on the determination and analysis of stress concentrations due to cracks in planar elements under static loading. It is pragmatic that finite element analysis (FEA) can efficiently determine the stress at a point near the crack tip. At present computer aided engineering (CAE) tools are at hand which can efficiently perform the FEA. In the present work the FEA is performed in ABAQUS platform. For the validation of the present work a Finite element model of a plate with two semicircular holes on opposite edges is developed by using the dimensions and other conditions as stated in a refereed publication. The present result is juxtaposed with the earlier published result in refereed publication. After that a planar model with crack is developed in ABAQUS and the model is simulated for different crack locations under static loading. The plate is fixed under different boundary conditions. The results are plotted against the crack locations to observe the effect of edge cracks and embedded cracks at different locations. It is noted that in every situation a regular pattern in between the von Mises stress value and crack location may not be obtained. Hence FEA is very essential for checking the stress in designing an element when any kind of discontinuity is present in the element.
Comparative Analysis of Two Hybrid MADA Models for the Selection of Process Parameters of FDM Based 3D Printing S Datta, S Majumdar, SH Mullick, B Kundu, S Chabri Journal of The Institution of Engineers (India): Series C, 1-14 , 2026 2026
Effects of annealing temperature on structure and magnetic properties of mechanically alloyed Cu-Fe-Ti system G Mandal, G Ma, A Bandyopadhyay, S Kunar, A Sinha, M Nath, A Gupta, ... Journal of Materials Research and Technology , 2025 2025 Citations: 1
Enhancing microstructure and magnetic properties of ribbons of Cu–Co–Ti alloy through ball milling: experimental insights and theoretical perspectives: S Chabri et al. S Chabri, A Sinha, M Nath, A Bandyopadhyay, G Mandal Indian Journal of Physics 99 (5), 1741-1748 , 2025 2025
Enhanced Metastable Solubility by Ball Milling of Rapidly Solidified Cu-Co-Mn Ribbon S Chabri, CS Tiwary Journal of Materials Engineering and Performance 34 (7), 5704-5712 , 2025 2025 Citations: 2
Solubility and magnetic properties of Ag− Co− Si alloy synthesized by mechanical alloying and annealing S Chabri Materialwissenschaft und Werkstofftechnik 55 (11), 1529-1534 , 2024 2024 Citations: 1
Effect of free energy on the solid solubility and magnetic behaviour of a mechanically alloyed nanocrystalline Cu–Co–Ti alloy S Chabri, S Samanta, G Roy, A Sarkar, S Bera Bulletin of Materials Science 47 (3), 214 , 2024 2024
Morphology and magnetic characteristics of Cu-Co/CNT nano-composite synthesized by mechanical alloying S Chabri Journal of Materials Engineering and Performance 33 (16), 8255-8261 , 2024 2024 Citations: 7
Magnetic Properties and Microstructure of an Isothermal Annealed and Mechanically Milled Nanocrystalline Ag− Mn Alloy S Chabri International Journal of Nanoscience 23 (03), 2350071 , 2024 2024
Investigating phase and magnetic properties in Co-2 wt.% MWCNT nano-composites prepared by mechanical alloying P Pandit, S Ghosh, G Roy, A Chatterjee, S Singh, S Chabri Proceedings of the Institution of Mechanical Engineers, Part E: Journal of … , 2024 2024
Tribological characteristics of thermomechanically processed 7075 Al alloy through nano-scratch characterization S Sanyal, A Chakraborty, A Sarkar, SK Pradhan, U Madhu, S Chabri, ... Proceedings of the Institution of Mechanical Engineers, Part J: Journal of … , 2022 2022 Citations: 2
Influence of over-aging and sub-zero temperature rolling on strength-ductility balance in AA6061 alloy S Sanyal, S Chatterjee, S Chabri, N Bhowmik, A Sinha Engineering Science and Technology, an International Journal 22 (1), 359-369 , 2019 2019 Citations: 12
Mechanical behaviour of aluminium dispersed unsaturated polyester/jute composites for structural applications B Biswas, S Chabri, BC Mitra, NR Bandyopadhyay, A Sinha Journal of the Institution of Engineers (India): Series C 99 (5), 525-530 , 2018 2018 Citations: 25
Effect of copper incorporation on the mechanical and thermal behavior of jute fiber reinforced unsaturated polyester composites B Biswas, S Chabri, P Sawai, BC Mitra, K Das, A Sinha Polymer Composites 39 (S3), E1315-E1330 , 2018 2018 Citations: 16
Mechanical properties of metal oxide dispersed jute fiber reinforced polyester biocomposites J Adhikari, B Biswas, S Chabri, NR Bandyopadhyay, S Halder, BC Mitra, ... Polymer Composites 39, E101-E112 , 2018 2018 Citations: 22
Effect of aluminum addition on the mechanical and thermal behavior of unsaturated polyester/jute composites B Biswas, S Chabri, P Sawai, BC Mitra, K Das, A Sinha Advances in Polymer Technology 37 (3), 810-821 , 2018 2018 Citations: 5
Effect of functionalized metal oxides addition on the mechanical, thermal and swelling behaviour of polyester/jute composites J Adhikari, B Biswas, S Chabri, NR Bandyapadhyay, P Sawai, BC Mitra, ... Engineering Science and Technology, an International Journal 20 (2), 760-774 , 2017 2017 Citations: 60
An efficient approach towards the photodegradation of indigo carmine by introducing ZnO/CuO/Si ternary nanocomposite as photocatalyst A Dhara, A Baral, S Chabri, A Sinha, NR Bandyopadhyay, N Mukherjee Journal of The Institution of Engineers (India): Series D 98 (1), 1-8 , 2017 2017 Citations: 9
Effect of copper/graphite addition on electrical conductivity and thermal insulation of unsaturated polyester/jute composites B Biswas, S Chabri, BC Mitra, K Das, NR Bandyopadhyay, A Sinha Journal of The Institution of Engineers (India): Series D 98 (1), 19-25 , 2017 2017 Citations: 11
Microstructure and magnetic behavior of Cu–Co–Si ternary alloy synthesized by mechanical alloying and isothermal annealing S Chabri, S Bera, BN Mondal, A Basumallick, PP Chattopadhyay Journal of Magnetism and Magnetic Materials 426, 454-458 , 2017 2017 Citations: 16
Mechanochemical synthesis of nanocrystalline hydroxyapatite from Mercenaria clam shells and phosphoric acid A Pal, S Maity, S Chabri, S Bera, AR Chowdhury, M Das, A Sinha Biomedical Physics & Engineering Express 3 (1), 015010 , 2017 2017 Citations: 98
MOST CITED SCHOLAR PUBLICATIONS
Mesoporous CuO–ZnO p–n heterojunction based nanocomposites with high specific surface area for enhanced photocatalysis and electrochemical sensing S Chabri, A Dhara, B Show, D Adak, A Sinha, N Mukherjee Catalysis Science & Technology 6 (9), 3238-3252 , 2016 2016 Citations: 147
Mechanochemical synthesis of nanocrystalline hydroxyapatite from Mercenaria clam shells and phosphoric acid A Pal, S Maity, S Chabri, S Bera, AR Chowdhury, M Das, A Sinha Biomedical Physics & Engineering Express 3 (1), 015010 , 2017 2017 Citations: 98
Core-shell CuO-ZnO pn heterojunction with high specific surface area for enhanced photoelectrochemical (PEC) energy conversion A Dhara, B Show, A Baral, S Chabri, A Sinha, NR Bandyopadhyay, ... Solar Energy 136, 327-332 , 2016 2016 Citations: 72
Effect of functionalized metal oxides addition on the mechanical, thermal and swelling behaviour of polyester/jute composites J Adhikari, B Biswas, S Chabri, NR Bandyapadhyay, P Sawai, BC Mitra, ... Engineering Science and Technology, an International Journal 20 (2), 760-774 , 2017 2017 Citations: 60
Tribological behavior of thermomechanically treated Al–Mg–Si alloy by nanoscratch measurements S Sanyal, S Chabri, S Chatterjee, N Bhowmik, AK Metya, A Sinha Tribology International 102, 125-132 , 2016 2016 Citations: 34
Mechanical behaviour of aluminium dispersed unsaturated polyester/jute composites for structural applications B Biswas, S Chabri, BC Mitra, NR Bandyopadhyay, A Sinha Journal of the Institution of Engineers (India): Series C 99 (5), 525-530 , 2018 2018 Citations: 25
Mechanical properties of metal oxide dispersed jute fiber reinforced polyester biocomposites J Adhikari, B Biswas, S Chabri, NR Bandyopadhyay, S Halder, BC Mitra, ... Polymer Composites 39, E101-E112 , 2018 2018 Citations: 22
Micromechanical and Nanoscratch Behavior of SiC p Dispersed Metal Matrix Composites S Chatterjee, S Chabri, H Chakraborty, N Bhowmik, A Sinha Journal of Materials Engineering and Performance 24 (9), 3407-3418 , 2015 2015 Citations: 22
Effect of copper incorporation on the mechanical and thermal behavior of jute fiber reinforced unsaturated polyester composites B Biswas, S Chabri, P Sawai, BC Mitra, K Das, A Sinha Polymer Composites 39 (S3), E1315-E1330 , 2018 2018 Citations: 16
Microstructure and magnetic behavior of Cu–Co–Si ternary alloy synthesized by mechanical alloying and isothermal annealing S Chabri, S Bera, BN Mondal, A Basumallick, PP Chattopadhyay Journal of Magnetism and Magnetic Materials 426, 454-458 , 2017 2017 Citations: 16
Electromagnetic interference reflectivity of nanostructured manganese ferrite reinforced polypyrrole composites H Chakraborty, S Chabri, N Bhowmik Transactions on Electrical and Electronic Materials 14 (6), 295-298 , 2013 2013 Citations: 16
Development and characterization of Al2O3 dispersed Al/Mg/Cu/Ti matrix composite S Chabri, S Chatterjee, S Pattanayak, H Chakraborty, N Bhowmik, ... Journal of Materials Science & Technology 29 (11), 1085-1090 , 2013 2013 Citations: 15
Mesoporous CuO-ZnO pn heterojunction with high specific surface area for enhanced photocatalysis and electrochemical sensing. Catal S Chabri, A Dhara, B Show, D Adak, A Sinha, N Mukherje Sci. Technol 6, 3238-3252 , 2016 2016 Citations: 13
Influence of over-aging and sub-zero temperature rolling on strength-ductility balance in AA6061 alloy S Sanyal, S Chatterjee, S Chabri, N Bhowmik, A Sinha Engineering Science and Technology, an International Journal 22 (1), 359-369 , 2019 2019 Citations: 12
Effect of copper/graphite addition on electrical conductivity and thermal insulation of unsaturated polyester/jute composites B Biswas, S Chabri, BC Mitra, K Das, NR Bandyopadhyay, A Sinha Journal of The Institution of Engineers (India): Series D 98 (1), 19-25 , 2017 2017 Citations: 11
Effect of space charge density and high voltage breakdown of surface modified alumina reinforced epoxy composites H Chakraborty, A Sinha, S Chabri, N Bhowmik Transactions on Electrical and Electronic Materials 14 (3), 121-124 , 2013 2013 Citations: 11
Magnetism and Magnetic Materials AE Clark, HS Belson AIP Conference Proceedings No. 10, 749 , 1972 1972 Citations: 11
An efficient approach towards the photodegradation of indigo carmine by introducing ZnO/CuO/Si ternary nanocomposite as photocatalyst A Dhara, A Baral, S Chabri, A Sinha, NR Bandyopadhyay, N Mukherjee Journal of The Institution of Engineers (India): Series D 98 (1), 1-8 , 2017 2017 Citations: 9
Structural, thermal and magnetic investigations on immiscible Ag–Co nanocrystalline alloy with addition of Mn BN Mondal, S Chabri, G Sardar, DN Nath, PP Chattopadhyay Journal of Magnetism and Magnetic Materials 412, 138-146 , 2016 2016 Citations: 9
Micromechanical behavior of β-Al 3 Mg 2 -dispersed aluminum composite prepared by high-energy ball milling and hot pressing S Maity, S Chabri, S Chatterjee, S Bera, A Sinha Journal of Composite Materials, 0021998316673705 , 2016 2016 Citations: 9