A5063401426- Shape Memory Alloy Transformations
- Magnetic Properties and Applications
- Magnetic Properties of Alloys
- Graphene research and applications
- Microstructure and Mechanical Properties of Steels
- Graphene and Nanomaterials Applications
- Aluminum Alloys Composites Properties
- Transition Metal Oxide Nanomaterials
- High-Temperature Coating Behaviors
- Aluminum Alloy Microstructure Properties
- Diamond and Carbon-based Materials Research
- Magnetic and transport properties of perovskites and related materials
- Metal and Thin Film Mechanics
- Quantum Dots Synthesis And Properties
- Pigment Synthesis and Properties
- Conducting polymers and applications
- Inorganic and Organometallic Chemistry
- Chalcogenide Semiconductor Thin Films
- Plasma Applications and Diagnostics
- Electromagnetic wave absorption materials
- ZnO doping and properties
- Electrohydrodynamics and Fluid Dynamics
- Fusion materials and technologies
- Veterinary Oncology Research
- Carbon Nanotubes in Composites
Indian Institute of Technology Guwahati
2011-2023
Abstract In-depth study into the creation and improvement of rare-earth free permanent magnets, particularly ferrites, has been sparked by recent economic environmental concerns. M-type barium hexaferrites (BaFe 12 O 19 , pure BHF) are a class low-cost magnets with an excellent curie temperature good resistance to oxidation corrosion that significant from technological perspective. In current study, experimental conditions optimized obtain hexaferrite ) co-substituted transition elements (Co...
In this study, we report the development of a new route for synthesis polymer–PbS nanocomposite thin film by novel solar irradiation-induced reaction which is completely free from any complexing agents and toxic chemicals. The as synthesised films were characterised X-ray diffraction (XRD), scanning electron microscopy (SEM) UV–Vis absorption spectroscopy. optical studies showed direct allowed band gap PbS lying in range 1.78–2.2 eV. XRD pattern shows cubic structure with lattice parameter...
The temperature dependent spin momentum densities of Co1.8NiGa1.2 and Co2Ni0.76Ga1.24 alloys have been measured using the magnetic Compton scattering technique. individual contributions constituents in formation total moment are also calculated line shape analysis. data when compared with magnetization obtained a vibrating sample magnetometer show negligible orbital contribution. moments deduced from experimental theoretical results full potential linearized augmented plane wave method found...
Polycrystalline ingot of Co47Ni23Ga30 alloy was prepared by arc melting constituent elemental powders under argon atmosphere. The then vacuum sealed in a fused silica ampoule, homogenized at 1230 °C for 24 hours and quenched liquid nitrogen. X-Ray diffraction patterns the as-quenched samples revealed single-phase tetragonal structure. separately annealed 900 °C, 1000 1150 6 subsequently ice water. alloys exhibited singlephase martensite structure (β′-phase) room temperature, whereas,...
Polycrystalline ingots of Co70–xNixGa30 (20 ≤ x 26) ferromagnetic shape memory alloy (FSMA) were prepared by arc melting elemental powders followed homogenization at 1230 °C for 24 hrs and quenching in liquid nitrogen. Room temperature X-Ray diffraction (XRD) patterns as-quenched samples exhibited single-phase tetragonal structure compositions with = 21 to 26, a two-phase (cubic A2-phase along weak phase) the 20. Rietveld refinement was performed on X-ray obtain refined structural...
Polycrystalline ingots of Co70-xNixGa30 (22 ≤ x 25) alloys were prepared by a sequence arc melting high purity Co, Ni and Ga in argon atmosphere, followed homogenization at 1150°C under pressure 10-3 Pa, quenching ice water. Structural characterisation the quenched was carried out to verify presence martensite phase room temperature. The start (Ms), finish (Mf), austenite (As) (Af) temperatures for determined using differential scanning calorimeter. ferromagnetic paramagnetic transition...
Ferromagnetic shape memory alloys are smart materials because they exhibit temperature driven effect and magnetic field induced strain. Thus two types of energy, i.e. thermal magnetic, used to control their behaviour. Study critical phenomenon in such has received increased experimental theoretical attention for better understanding the phase transition behavior as well further development ferromagnetic materials. In present study we report preparation characterization bulk Co45Ni25Ga30...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Sidananda Sarma, A. Srinivasan; Magnetic Properties of Fe/Mn Substituted Co‐Ni‐Ga Alloys. AIP Conference Proceedings 30 June 2011; 1347 (1): 111–114. https://doi.org/10.1063/1.3601798 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search...
Co-Ni-Ga and Co-Ni-Al alloys are expected to be good ferromagnetic shape memory (FSMAs) owing their higher ductility resulting from the presence of γ-phase precipitates stability in preparation since they do not contain highly volatile element Mn. Co-Ni- Ga have a wide range martensitic transformation Curie temperatures. In order explore possibility obtaining with room temperature phase, two series compositions, viz., Co70-xNixGa30 (20 ≤ x 26) CoxNi25Ga75-x (43 50) were taken up for...