A5100418176- Magnetic Properties of Alloys
- Magnetic and transport properties of perovskites and related materials
- Magnetic properties of thin films
- Ferroelectric and Piezoelectric Materials
- Advanced Photocatalysis Techniques
- Ammonia Synthesis and Nitrogen Reduction
- Advanced battery technologies research
- Shape Memory Alloy Transformations
- Hydrogen Storage and Materials
- MXene and MAX Phase Materials
- Electrocatalysts for Energy Conversion
- Caching and Content Delivery
- Electrical and Thermal Properties of Materials
- Dielectric properties of ceramics
- Advanced ceramic materials synthesis
Indian Institute of Technology Kharagpur
2017-2023
Ammonia is the second-most produced chemical throughout world to maintain global food supply and other stocks.
The MnBi alloys is a model series of rare-Earth free magnets for surge technologies small parts automobiles, power generators, medical tools, memory systems, and many others. magnetics stem primarily at unpaired Mn-3d5spins (a 4.23μBmoment) align parallel via an orbital moment 0.27μBof Bi-5d106s2p3in crystal lattice. Thus, using surplus Mn (over Bi) in Mn70Bi30type alloy designs spin-rich system duly tailored properties useful other devices. In this view, we report here strategy refined...
A spin Mn3d5-rich Mn60Bi40alloy reveals a model system in order to tailor profound magnetic properties at unpaired 3d5spins such alloys of core-shell structure. As annealed (at critical temperature 573 K H2gas), refined powder (in glycine) grows onα-MnBi seeds (crystallites) present it Mn/Bi atoms over topological layers, preferentially along (110) planes, self-confined structure an anisotropic shape hexagonal (h) plates (25-85 nm widths). In terms the HRTEM images, turn down edges grow up)...
The binary alloy Mn0.5+xBi0.5-x, x ⩽ 0.05, is a promising rare-earth-free magnetic material, with high-energy-density (a critical characteristic for electric motors and power electronics), low cost, significant properties multiple uses at room temperature. In this article, we report how free Bi, when precipitated over Mn0.5+xBi0.5-x (x 0.05) of small crystallites, diffuses back into stable → 0, via peritectic reaction, which facilitates preferential growth core-shell crystallites facets,...
Background: The ternary Ni-Mn-Sn alloys are an important series of energy-materials magnetocalory used as ‘small magnets and tools' magnetic cooler, spin-polarizer, sensor, other devices. basic aim this article is to explore a small Cr → Mn doping in tailoring functional properties Ni50Mn37-δCrδSn13 (δ ≤ 2.0) engineered shapes cylindrical discs (10-20 mm diameters 5-10 widths), thin sheets, or laminates. Methods: A common vacuum arc melting process produce the master discs. Laminates few...
Herein, we have developed a Cr 3+ doped Al 2 O 3 of hierarchical nanostructure by simple two-step synthesis. A pure AlO(OH)⋅αH O, as synthesized in forms small tubular fibers hydrolysis Al-metal sheets, is easily with selective dosages up to 2.0 mol% using an aqueous CrO . As-synthesized samples exhibit XRD single phase + : rhombohedral crystal structure. Average pore-volume decreased 98.1, 89.8, and 61.5 cm -g -1 the 0.5, 1.0 % Cr% samples, average pore radius 1.70, 2.17 1.90 nm,...