Niranjan Ramakrishnegowda Email & Phone Number

Alzenau In Unterfranken, Bavaria, Germany

Process engineering and commissioning of vacuum coating systems in-house and on-site at customers' facilities in Germany and abroadExecution of process-related activities and technical acceptance of systemsContinuous process optimization

Halle Salle, Germany

Strain engineering of functional materials like Ferroelectrics is a hot area of research nowadays. There are several ways to engineer the Ferroelecrics by using strain as an approach. Prominent being the use of substrates with different mismatch with respect to the film being grown and also by varying the thicknesses. Varying the growth parameters within a small window maintaining the crystallinity, epitaxial growth, can also yield films of different functional properties. In my work, Pulsed laser deposition is used to grow crystalline thin films of Perovskite Multiferroics, the crystalline quality is checked using High-resolution XRD measurements and Reciprocal space mapping (RSM). RSM also helps in knowing about the local strain states of Multiferroics at the plane of measurement. The technique like Piezoresponse force microscopy is used to Image and modify ferroelectric domain structures formed. Current versus Voltage measurements are conducted at dark and photo-assisted conditions to check the transport mechanisms of electrical properties of thin films. Since the temperature has a big role in manipulating the conductive properties of thin films, I-V curves will be measured also at different temperatures using cryostat. In addition, dislocations like threading and screw dislocations play a crucial role in deciding the important properties of ferroelectric material, TEM will be used to image the films along its thickness. The challenge is to understand the intriguing results obtained in terms of resulting domain structures and it's influence on Photoelectrical properties. Existing theories and research papers show varying results, that fills much more curiosity into the minds of researchers in the field. The presence of trap levels with in the forbidden bandgap can be understood by doing Thermally stimulated measurements by poling samples at different temperatures.

Kiel Area, Germany

Characterization of the samples by using a technique called X-ray photoelectron spectroscopy and analysis of the same using a software tool called XPS CASA and EIS.

Kiel Area, Germany

I came across subjects like Advanced materials A (study of metals and polymers), Advanced Mathematics, Advanced Materials B (Study of ceramics and electronic materials), Analytics (study of different microscopy techniques), Solid state physics, Physical, chemical and engineering thermodynamics, Magnetic materials, Semiconductors, Advanced metallic materials, Nanochemistry, Smart materials, Micro and nano system technologies and Electron microscopy and have successfully finished them.

Geestacht, Germany.

Whatever Research and development going on in the current world it is, the main aim of it would be to be helpful to the mankind, make life simpler and be a matter of use in case of any problem to the mankind, I do one such thing in order to fulfill the requirement of credits for master thesis. We have seen the advantages of biological fixation as implant material in the recent past, the research and development on metallic implants have been a boon to the mankind. My Work is to develop a layered Mg-Ti implant for bio-medical application by Metal Injection Molding.The current work is on manufacturing of Ti-6Al-4V samples with uniform roughness all over its surface by using NaCl as the space holder material by Metal Injection Molding technique. The samples have to be debinded and sintered to remove the binders and to form microstructures. The as-sintered Ti sample will be deposited with a layer of Mg to form an interface between the two followed by debinding and sintering of Mg layer. The samples will be characterized using Optical microscope, SEM, EDX and few mechanical tests like bending test will be performed. An attempt will be made to increase the interconnected porosity of Mg layer in order to achieve drug delivery. On succesfull achievement of interconnected porosity, basic drug delivery tests will be performed.

Hassan Area, India

Social Service.

Doctor Of Philosophy - Phd, Materials Science

Master Of Science (M.Sc.), Materials Sciences

Advanced mathematics, Metals and polymers, Ceramics and electronic materials, Solid state physics, Analytics, Thermodynamics.

Bachelor Of Engineering (B.E.), Mechanical Engineering

Activities and Societies: Indian community in Kiel