A5102773123- Advanced ceramic materials synthesis
- Advanced materials and composites
- Magnetic and transport properties of perovskites and related materials
- Multiferroics and related materials
- Magnesium Oxide Properties and Applications
- Aluminum Alloys Composites Properties
- Ferroelectric and Piezoelectric Materials
- Advanced Condensed Matter Physics
- Concrete and Cement Materials Research
- Nuclear materials and radiation effects
- Recycling and utilization of industrial and municipal waste in materials production
- Metal and Thin Film Mechanics
- Thermal properties of materials
- High-Temperature Coating Behaviors
- Innovative concrete reinforcement materials
- Magnetic Properties and Synthesis of Ferrites
- Erosion and Abrasive Machining
- Glass properties and applications
- MXene and MAX Phase Materials
- Advanced Surface Polishing Techniques
- Bone Tissue Engineering Materials
- Advancements in Solid Oxide Fuel Cells
- Materials Engineering and Processing
- Perovskite Materials and Applications
- Acoustic Wave Resonator Technologies
Indian Institute of Science Bangalore
2022-2025
Patna University
2023-2024
National Institute of Technology Patna
2017-2022
Argonne National Laboratory
2004-2017
Guru Nanak Dev University
2011-2012
Vivekananda Parvatiya Krishi Anusandhan Sansthan
2004
University of Illinois Urbana-Champaign
2001
University of Connecticut
2001
University of California, Santa Barbara
2001
Energy Technology Centre
2001
Thermal conductivity and mechanical effects of silicon carbide nanoparticles uniformly dispersed in water were investigated. Mean size SiC particles was 170 nm with a polydispersity ∼30% as determined from small-angle x-ray scattering dynamic light techniques. Room temperature viscosity the nanofluids ranged 2 to 3 cP for nominal nanoparticle loadings 4–7 vol %. On normalized basis water, did not significantly change test up 85 °C. Optical microscopy diluted nanofluid showed no agglomeration...
Heat transfer enhancement criteria for nanofluids over their base fluids are presented based on three separate considerations: Reynolds number, flow velocity, and pumping power. Analyses show that, among the comparisons, constant power comparison is most unambiguous; velocity can be quite reasonable under certain conditions but number (the commonly used in engineering literature nanofluids) distorts physical situation, therefore, should not used.
Recently, a series of reports showing ultrahigh electrostrains (>1%) have appeared in several Pb-free piezoceramics. The electrostrain has been attributed exclusively to the defect dipoles created these systems. We examine claims based on another report (G. D. Adhikary and R. Ranjan, “Ultrahigh measured unipolar strain >2% polycrystalline bulk piezoceramics: Effects disc dimension,” arxiv.org/abs/2208.07134), which demonstrated that electric field driven increased dramatically...
Ideally, a solid electrolyte which is central component of SOFC should exhibit high anionic or cationic ionic conductivity at the proposed operating temperatures. In most case, performance compromised when above 1000 °C due to poor mechanical, thermal and chemical stability selected functional non-functional materials. this context, pyrochlores are one potential candidates their conductivity, flexibility accommodate large cations, stability. study, we report synthesis nano-powders Ho2Hf2O7...