A5063759455- Microstructure and mechanical properties
- Fluid Dynamics and Thin Films
- nanoparticles nucleation surface interactions
- High-Velocity Impact and Material Behavior
- Aluminum Alloys Composites Properties
- Block Copolymer Self-Assembly
- Solidification and crystal growth phenomena
- Surface Treatment and Residual Stress
- Metal and Thin Film Mechanics
- Aluminum Alloy Microstructure Properties
- High-pressure geophysics and materials
- Advanced Surface Polishing Techniques
- Microstructure and Mechanical Properties of Steels
- Titanium Alloys Microstructure and Properties
- Adhesion, Friction, and Surface Interactions
- Magnesium Alloys: Properties and Applications
- Ion-surface interactions and analysis
- Metallurgy and Material Forming
- Nanomaterials and Printing Technologies
- Nanoporous metals and alloys
- Advanced machining processes and optimization
- Advanced Machining and Optimization Techniques
- MXene and MAX Phase Materials
- Additive Manufacturing Materials and Processes
- High Entropy Alloys Studies
Indian Institute of Technology Roorkee
2025
Technion – Israel Institute of Technology
2020-2024
Pennsylvania State University
2024
Indian Institute of Technology Kharagpur
2024
Indian Institute of Science Bangalore
2012-2020
Loughborough University
2019
Metalorganic chemical vapor deposition (MOCVD) is a promising technique for wafer-scale synthesis of MoS2 monolayers 2D field-effect transistors (2D-FETs) and related devices. Epitaxial growth on sapphire provides films that are crystallographically well-oriented but typically contain low-angle grain boundaries (e.g., mirror twins), voids, other defects depending conditions substrate characteristics. In this study, we investigate microstructure, optical properties, characteristics grown by...
In recent years, the gain suppression mechanism has been studied for large localized charge deposits in Low-Gain Avalanche Detectors (LGADs). LGADs are a thin silicon detector with highly doped layer that provides moderate internal signal amplification. Using CENPA Tandem accelerator at University of Washington, response different thicknesses to MeV-range energy from proton beam were studied. Three LGAD prototypes 50~$\mu$m, 100~$\mu$m, 150~$\mu$m characterized. The devices' was determined...
Aerospace-grade Ni-based alloys such as Inconel 718 and 625 are widely used in the airspace industry thanks to their excellent mechanical properties at high temperatures. However, these materials classified 'difficult-to-machine' because of shear strength, low thermal conductivity, tendency work-harden presence carbide particles microstructure, which lead rapid tool wear. Machining-induced residual stresses a machined part is an important parameter assessed since it can be evaluate overall...
The classic paradigm of physical metallurgy is that the addition alloying elements to metals increases their strength. It less known if solution-hardening can occur in nano-scale objects, and it totally unknown how impact strength defect-free faceted nanoparticles. Purely metallic nanoparticles exhibit an ultra-high approaching theoretical limit. Tested compression, they deform elastically until nucleation first dislocation, after which collapse into a pancake shape. Here, we show by...
Abstract We propose the strain-induced solid-state coating process of twinning-induced plasticity (TWIP) steel with zinc, achieved through concurrent rolling TWIP and zinc sheets. Our study explores effects strain, strain rate, temperature on morphology intermixing at Zn-TWIP interface. found that two simultaneous mechanisms are responsible for formation a joint interface between sheets in range 100–380 °C, namely mechanical accelerated diffusion along moving dislocations other defects...
The figure of merit (zT) a thermoelectric material can be enhanced by incorporation nanoinclusions into bulk material. presence bismuth telluride (Bi2Te3) in Co4Sb12 leads to lower phonon thermal conductivity introducing interfaces and defects; it enhances the average zT between 300-700 K. In current study, Bi2Te3 nanoparticles were dispersed ball-milling. was fabricated spark plasma sintering. dispersion confirmed x-ray diffraction, scanning electron microscopy, transmission microscopy back...