Vignan’s Foundation for Science, Technology and Research

Ph.D., Mechanical Engineering, Center for Nano Science and Engineering (2008-2016)

Indian Institute of Science, Bangalore

Thesis Title: Influence of contact stresses on shape recovery in sputter-deposited NiTiCu thin films

Advisors: Prof. M. S. Bobji (Department of Mechanical Engineering (ME)), Prof. S. Mohan (Instrumentation (IN)/Center for Nano Science and Engineering (CeNSE))

Andhra University College of Engineering (A) (AUCE (A)), Visakhapatnam

Project: CeO2 Thin Films as High-K Gate Dielectrics for VLSI Applications

B. Tech, Electronics and Communication Engineering (2002-2006)

Sasi Institute of Technology and Engineering (affiliated to J.N.T.U), Tadepalligudem

Project: Pick and Place Robot

Vignan University, Vadlamudi, Guntur (July 2017 – till date)

Nitte Meenakshi Institute of Technology, Bangalore (January 2016 – June 2017)

• MEMS for UG and PG, Entrepreneurship and IPR, Digital Electronics, Embedded systems, Automotive electronics, Multimedia communication, Embedded Systems & RTOS, Microcontrollers for Embedded Systems, Embedded System Design using FPGA

• Thin films, Tree climbing robot, Coconut harvesting robot, Embedded Systems, Instrumentation, MEMS

Academic researcher (2016-till date)

• Design, development of tree climbing robot

• Deposition and characterization of Pulsed DC sputtered thin films (NiTi, TiN)

• Fabrication and characterization of MEMS devices using thin films

• Design and development of low-cost temperature-dependent four-probe resistivity measurement system

• Design and development of high voltage amplifier for piezo driver applications

• Mohammad Taj – MEMS (2Y 1M, 1-Journal (submitted), 1-Conference)

• Kota Rahim Reddy – Video analytics (Part-time, Literature survey)

• M. Deepti – Application of deep learning algorithms for medical image processing (Part-time, just joined)

• Development of simulation environment with active feedback for epidural procedures

• Development and testing of electronics for the feedback and control

• Development of a physics-based model for the tissue needle interaction using OpenGL and haptics

• Design and development of high voltage amplifier

• Design, installation, and complete diagnosis of vacuum system using a residual gas analyzer

• Deposition of thin films (NiTiCu) using sputtering from elemental, mosaic target systems

• Fabrication of samples and structures using Focused Ion Beam(FIB) for transmission electron microscope (TEM) analysis and cross-sectional analysis(trained at Sheffield University, UK and CeNSE, IISc, Bangalore)

• Study of mechanical properties of thin films using nanoindentation and analysis using atomic force microscope (AFM), scanning electron microscope (SEM) micrographs of the indents to correlate the structure and properties

• Shape recovery properties of NiTiCu thin films after heating were evaluated by correlating the AFM and SEM micrographs of the nanoindenter, which were relocated precisely, before and after heating the thin films for shape recovery

• Analysis of AFM and SEM micrographs of the nanoindenter was carried out using MATLAB to obtain the amount of shape recovery

• Development of experimental setup for electric contact resistance (ECR) measurement at low loads

• Characterization of ECR of thin films at various loads applied using a conductive diamond tip

• Electrical characterization of thin films for VLSI applications (carried out at IISc)

• Fabrication of nanomaterials using ball milling

• The corrosion resistance of aluminum alloys

Sudipta Dutta, N V R Vikram Gelli, M S Bobji, Tabletop experimental setup for electrical contact resistance measurement during indentation, Measurement (ISSN 0263-2241), 1‑Feb‑2020, 152, 107286, (Impact factor 3.364), DOI: 10.1016/j.measurement.2019.107286

Vemuri Raghavendra, B Suryanarayana, K Chandra Mouli, P. V Achary, G. N. V. R Vikram, N Murali, Dielectric and Piezoelectric Properties of Sm3+ rare-earth ion-doped lead barium niobate (PBN) ceramics, Physica B: Condensed Matter (ISSN 0921-4526), 1‑Mar‑2019, 556, 75-81, (Impact factor 1.902), DOI: 10.1016/j.physb.2018.11.066

Jithin M A, Lakshmi Ganapathi Kolla, N V R Vikram Gelli, N K Udayashankar, S Mohan, Deposition and characterization of Titanium nitride thin films using pulsed dc magnetron sputtering for localized heat application in MEMS devices, Sensors & Actuators: A. Physical (ISSN 0924-4247), 1-Apr-2018, 272, 199-205, (Impact factor 2.904), DOI: 10.1016/j.sna.2017.12.066

N. V. R. Vikram Gelli, M. S. Bobji, and S. Mohan. Effect of contact stresses on shape recovery of NiTiCu thin films. Thin Solid Films (ISSN 0040-6090), 1-Aug- 2014,  564(0), 306–313, (Impact factor 2.03), DOI: 10.1016/j.tsf.2014.04.088

Mandava Ravi Kumar, Nandure Narayana Rao, G N V R Vikram, A novel climbing mechanism for coconut tree,  Patent granted by IP Australia, on 09-06-2021

 Mohammad Taj, NVR Vikram G, Nithya G, Veda Sandeep Nagaraja, DESIGN, SIMULATION and ANALYSIS OF MEMS BASED MULTI-DIRECTIONAL INERTIAL SENSOR (Accepted)

M.Deepthi, G.N.V.R.Vikram, Venkatappareddy, A Chebyshev Polynomial Based Activation Function In CNN Model For Classification (Communicated)

N. V. R. Vikram Gelli, Prasanth Pendyala, Mathematical analysis of Surface characteristics of NiTiCu thin films,

N. V. R. Vikram G, Low cost temperature-dependent resistivity measurement system (Patent Applied)

N. V. R. Vikram Gelli, M. S. Bobji, and S. Mohan, Effect of nodular growth on the mechanical properties of NiTiCu thin films

N V R Vikram Gelli, Jithin M A, N K Udayashankar, S Mohan, Correlation of structural and mechanical DC & PDC deposition of NiTi thin films