A5017026751- Advanced Thermoelectric Materials and Devices
- Thermal Expansion and Ionic Conductivity
- Intermetallics and Advanced Alloy Properties
- Magnetic and transport properties of perovskites and related materials
- Aluminum Alloys Composites Properties
- Advanced materials and composites
- Metallic Glasses and Amorphous Alloys
- Thermal properties of materials
- Thermal Radiation and Cooling Technologies
- Magnetic Properties of Alloys
- Chalcogenide Semiconductor Thin Films
- Boron and Carbon Nanomaterials Research
- Powder Metallurgy Techniques and Materials
- Advanced ceramic materials synthesis
- Advanced Thermodynamics and Statistical Mechanics
- Heusler alloys: electronic and magnetic properties
- High Entropy Alloys Studies
- Magnetic Properties and Synthesis of Ferrites
- Semiconductor materials and interfaces
- Hydrogen Storage and Materials
- High-Temperature Coating Behaviors
- Magnetic properties of thin films
- Metal and Thin Film Mechanics
- Microstructure and mechanical properties
- Shape Memory Alloy Transformations
International Advanced Research Centre for Powder Metallurgy and New Materials
2013-2025
Indian Institute of Technology Madras
2016-2023
Additive manufacturing (AM) techniques have garnered significant attention for their capability to produce innovative ferritic alloys with tailored microstructures and mechanical properties. This study focuses on the fabrication of a 17Cr steel alloy via Selective Laser Melting (SLM), comparing its characteristics those generated through vacuum hot pressing (VHP) conventional casting methods. The microstructural analysis SLM-fabricated was conducted using optical microscopy, scanning...
We report the thermoelectric properties of Ba0.4Co4Sb12 and Sn0.4Ba0.4Co4Sb12 skutterudites dispersed with Cu2O nanoparticles. The samples were synthesized by ball milling consolidated spark plasma sintering. Dispersion is found to significantly influence electrical resistivity thermopower at high temperatures a more pronounced effect on due energy filtering interface between nanoparticles matrix. At 573 K, decreases from 5.01 × 10−5 Ωm 2.98 upon dispersion Cu2O. reduces thermal conductivity...
This study shows a method of enhancing the thermoelectric properties GeTe-based materials through Ti and Bi codoping on cation sites along with self-doping Ge via simultaneous optimization electronic (via crystal field engineering precise Fermi level optimization) thermal point-defect scattering) transport properties. Pristine GeTe has high carrier concentration $n$ due to intrinsic vacancies, low Seebeck coefficient $\ensuremath{\alpha}$, conductivity $\ensuremath{\kappa}$. The vacancy...
Spark Plasma Sintering (SPS) technique was employed to synthesize 0.75BaTiO3-0.25BaFe12O19 composite. X-ray diffraction studies revealed that the composite consisted of both BaTiO3 (ferroelectric phase) and BaFe12O19 (ferrimagnetic phase), respectively. The SPS treated sample showed improved ferroelectric nature when compared conventional sintered (CS) sample. Transformation from hard soft magnetic envisaged by magnetization measurements for A slim hysteresis loop recorded with a low...
Thermopower in cobalt oxides has been a rich area of interest due to the existence different charge states along-with spin states. In this report, we have systematically studied structural and thermal transport properties ($1-x$)LaCoO$_3$.($x$)La$_{0.95}$Sr$_{0.05}$CoO$_3$ composite. The Seebeck coefficient ($\alpha$) values for composite increases at high temperatures compared LaCoO$_3$ (LCO) La$_{0.95}$Sr$_{0.05}$CoO$_3$ (LSCO) systems. electrical conductivity ($\sigma$) decreases with...