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Materials Science: Technology Development and Transfer, Coatings and Surface Technologies
Electrochemical Energy Conversion and Storage Devices • Solid oxide fuel cells (SOFC) • Catalysis for proton exchange membrane fuel cells (PEMFC) • Metal oxide supercapacitors • Rechargeable batteries High Temperature Alloys • High temperature oxidation of alloys • Oxidation protection…
Nanotechnology
Expert has a decade of experience synthesizing, characterizing and applying nanoparticles for various applications. He has used many scientific instruments for characterizing nanomaterials like transmission electron microscopy, scanning electron microscopy, UV-Vis spectroscopy, fluorescence spectroscopy, Thermogravimetric analysis, dynamic light scattering, x-ray…
Surface Engineering, Diamond like hard coating, material science, Medical device, hard disk
Most of Expert's scientific career has been devoted to the development of surface modification and thin film deposition technologies, including plasma nitriding, plasma carbonization, boriding, chromizing, cathodic arc, filtered cathodic arc, pulsed laser ablation, magnetron sputtering, pulsed mid-frequency dc magnetron…
Physics, Optics, Applied Mathematics, Algorithm Development, Electromagnetics, Quantum Theory
Expert has spent over 20 years developing mathematical algorithms, techniques and approaches to solve fundamental physics and engineering issues as well as model, analyse and/or design solutions to practical real world problems. He has a strong background in advanced mathematics,…
Metallurgy, Material Science, Failure Analysis, Microscopy, X-ray
Expert has successfully worked with a variety of industrial clients to develop bases for process and product development in solidification processing, deformation processing and heat treatment of Al alloys. Specific applications have been semi-solid metal (SSM) forming, deformation processing of…
Nanotechnology, Biomaterials, Sol-gel Sciences, Optics, Biotechnology, Glass, Ceramics, Spectroscopy
Expert is a specialist of sol-gel chemistry. He developed a new non-aqueous method for sol-gel glass coating to obtain transparent films for integrated optics and photonics using polysiloxane materials. The aim was to obtain low-softening temperature glasses to permit facile…
Inorganic and Organic Synthesis, Structural Analysis, Spectroscopy
Dr. Chellama has designed and synthesized novel neutral dinuclear ruthenium complexes that can be used as Quantum dot Cellular Automata (QCA) cells, a new paradigm for improving computational density. Twenty-five novel dinuclear ruthenium complexes with various N-donor terminal ligands were…
Low Power Electronics, High Voltage, RF Electronics, Nanomaterial Sciences, X-ray and UWB Imaging
Expert includes among his various expertise areas the following: Ultra-low power electronics: design of RFID tags, mesh network; High voltage electronics: design HV power supply (up to 360 kV); X-ray generators and tubes : design (finite elements) of electrical optics…
Visual C++ Programming, Display Colorimetry
Expert is familiar with the 1931 CIE colorimetry standard observer and has written many software packages incorporating the tristimulus coefficients for analyzing color display devices. He has calibrated photometers, filter colorimeters, and diffraction grating spectroradiometers. He has served as chairman…
Semiconductor Materials Characterization Thin Film Deposition
He has extensive experience, over 20 yrs, in the field of epitaxial deposition of III-V semiconductor materials for opto-electronic devices (InGaAsP/InGaAlAs/InP and AlGaAs/InGaP/GaAs based materials). This includes the growth of high-speed bipolar transitors, phototransistors, lasers, pin and avalanche high-speed photodetectors.…