SAI PRATHYUSHA YADAMA

Columbus, Ohio-*****.

LinkedIn ac8o1b@r.postjobfree.com +1-352-***-****

EDUCATION

Master of Science-Materials Engineering (3.7) Aug 2016-May 2018 University of Florida, Gainesville, Florida, USA.

Bachelor of Technology- Metallurgical Engineering (3.5) Aug 2012-May 2016 JNTU, Hyderabad, India.

Relevant Courses: Error Analysis and Optimization techniques, Computational Chemistry, Semiconductor Device Fabrication Lab, Synthesis and Characterization of semiconductor materials, Advance electronic materials processing, Mechanical Metallurgy, Physical Metallurgy, Alloy Steels. CAREER OBJECTIVE

A result-oriented and passionate Materials science graduate with strong Metallurgical background having hands-on experience in Semiconductor Processing especially CMOS, MEMS, optimizing the processes using six-sigma tools and volunteered as coordinator for student organization conducting several events promoting education for under- privileged children. As a whole, A technically skilled graduate with excellent organizational skills having a positive influence on the society wants to be part of your organization. SKILLS

Characterization and result analysis: AES, SEM, XRD, Optical Microscope, ASTM E10, Gas Chromatography, Universal Testing Machine, Metallography, Rockwell Hardness, I-V, C-V, CMOS, MEMS Fabrication Software: Minitab, KLayout, LAMMPS, Nano-Hub, Python, JMP EXPERIENCE

Research Volunteer, University of Florida – Computational Materials Science 2018

• Silicon Potentials are very important in constructing new materials Si systems and obtaining the quantities of interests from the system.

• Modeled cubic system of diamond structure of Silicon is simulated using the tersoff and stillinger weber potentials useful for fitting the potentials in Silicon Systems.

• Performed the simulations with a range of parameters for both the potentials and analyzing the data by rugged plots using python applications.

• Used GitHub interface for updating and pulling the data from the repositories obtained through parallel computing of Materials Systems.

• Tools: LAMMPS, Matplotlib, Linux,GitHub

Research Intern(Team Lead), DMRL, Hyderabad, India 2016

• Determined the reason for the unusual failure of 3 samples of Ti-1023 during low cycle fatigue test which affects the mechanical strength of the composite alloy.

• Prepared the samples using Multiprep Parallel polisher and Ultrasonic cleaning for Metallographic characterization and identified the two phases of Titanium from the microstructures obtained from Optical microscope using phase diagrams

• Confirmed the presence of beta flecks region in the sample which have larger β grains compared to surrounding matrix using the microstructures obtained from optical microscope.

• Examined the fracture surface of tested specimens using fractographs obtained from the secondary electron imaging mode of scanning electron microscope (SEM) used at 20 kV and a spot size of 3.

• Observed Faceted type of fracture, secondary cracks along the grain boundaries in the beta flecks region responsible for the early failure of samples.

• Tools: FEI Quanta 400 SEM, Optical Microscope, Isomet low speed cutting Machine, Multiprep Parallel polisher.

Quality Engineering Intern, Nuclear Fuel Complex, Hyderabad, India 2015

• Hot Extrusion Process Qualification Using Thermal Image Analysis

• Improved the yield (Quality) of the extrusion process of Zirconium Billets by analyzing the thermal profile of Zirconium billet, a new approach using thermal imaging camera calculating the temperature using emissivity from infrared radiation emitted by the billet.

• Determined the optimum soaking time of Zirconium Billets by calculating the drop-in temperature from the infrared radiation obtained from thermal images.

• Tools: XRD, Thermal Imaging Camera.

Industrial Trainee, Rashtriya Ispat Nigam Limited, Vizag, India 2014

• Familiarized with the whole process from blending of ores to the production of steel re -bars.

• Determined the calorific value of coke oven gas using gas chromatography in the coke oven plant.

• Determined the impurities present in the steel using atomic emission spectrometry at Steel Melting Shop.

• Determined the tensile strength of the bar in universal testing machine after reducing the steel bars of 150mm*150mm bars to 25mm diameter re-bars by TMT.

• Tools: Gas Chromatography, AES, UTM, Optical Microscope ACADEMIC PROJECTS

Minimization of Expenditure on Airline tickets using DOE principles Mar 2018 to Apr 2018

• Constructed a model using 2-level 3-factors factorial design fitting the empirical equation using regression analysis depending on day of travel, Type of Airline carrier, the booking time in advance and cost of the ticket as the response variable.

• Observed an average of 55% increase in prices from Weekday to Weekend for all the Airlines And booking three weeks in Advance on an average gets 60% of profit.

• Tools: Minitab, Design Expert, JMP

Fabrication of nanoscale devices on Silicon wafer Aug 2017 to Dec 2017

• Fabricated diodes and comb structures and MEMS on Silicon wafer and characterized using suitable techniques.

• Designed the devices using K-layout software and Performed Thermal oxidation, photolithography, etching

(wet and dry), Sputtering and characterization on the 2-inch Silicon wafer.

• Characterized etch profile using profilometer, oxidation thickness using Spectral Reflectometry, Electrical properties using CV and I-V curves.

• Analyzed the failure of comb drives and thermal shock failure of Silicon wafers during oxidation and the performance of the different MEMS structure

• Tools: Klayout, Carbolite S/N -4/99/8041, Filmetrics F20, Karl-Suss MJB3 Mask Aligner, KJL CMS- 18(Sputtering), RIE-STS, Dektak Profilometer, SEM JEOL 7500 Power Presentation on the Latest Trends in semiconductor field – OLED fabrication and Applications Dec 2017

• Presented the processing and fabrication techniques of OLED and the its competitor technology Quantum Dots.

• Discussed the Advantages, Disadvantages and Challenges of OLED and the State of art of OLED and future applications of OLED.

Efficiency determination of PffBT4T-2OD/PC71BM organic solar cell using DPD simulation Dec 2017

• Analyzed mesoscale simulations using Dissipative Particle Dynamics on the organic molecules

(PffBT4T-2OD/PC71BM) and observed increase in efficiency by 0.6% compared to pure conjugated polymers

• Used interaction and order parameters to determine the morphology of bi-continuous phase

• Tools: LAMMPS, Open-mpi, Python script.

Joule-Thomson Inversion Curve for Oxygen using Monte-Carlo Simulations Oct 2017

• JTIC of oxygen is useful in determining the design of throttling operations by simulating 500 molecules of Oxygen in a cubical box with periodic boundary conditions and equilibration of the system is ensured for accurate results.

• Used Compressibility Factor to determine the inversion points for the JTIC curve.

• Tools: LAMMPS, Open-mpi, Python script.

Determination of Glass Transition Temperature of PMMA polymer using Molecular Dynamics Sep 2017

• Glass transition temperature is important for determining the properties of polymer at service temperature

• Observed a decreasing trend in transition temperatures with reduction in the cooling rate with 1.17% reduction from 20K/Ns to 10K/Ns and 12.69% reduction from 10K/Ns to 5K/Ns.

• Tools: LAMMPS, Open-mpi, Python.

Mechanical Working of Metals and Electro Metallurgy and Corrosion Laboratory Aug. 2015 to Nov. 2015

• Quantified the properties of intricate shapes fabricated using casting process and the electrochemical principles are demonstrated using different electrolytic cells and various electrolytes.

• Performed corrosion experiments at lab-scale understanding various catastrophic failures under various environments.

Heat Treatment and Mechanical Metallurgy Laboratory Jan. 2015 to Apr. 2015

• Modified the micro-structures to improve the mechanical properties of different materials using heat treatment techniques.

• Conducted experiments on Universal Testing Machine and hardness tests for better understanding of mechanical behavior of different materials.

Metallurgical Analysis and Physical Metallurgy Laboratory Aug. 2014 to Nov. 2014

• Carried out the study of micro-structures of steels, cast irons, and important non- ferrous alloys and chemical analysis of different materials

Mineral Dressing and Fuels, Furnaces Laboratory Jan. 2014 to Apr. 2014

• Determined calorific value of fuels, the flash and fire points of liquid fuels, the carbon residue analysis of the fuels.

• Performed physical beneficiation of ores and minerals for further utilization of ore concentrates. AWARDS

Achievement Award Scholarship for new engineering graduate student

• Received a scholarship at University of Florida for excellent performance during under-graduation in Metallurgical Engineering.

VOLUNTEER EXPERIENCE

Fund-raising Volunteer and Co-Ordinator at Gators for Asha Student Organization

• Raised 106$ with in a span of two weeks by completing 15K "Gate River Run" at Jacksonville, FL.

• Worked with highly organized team volunteering home games at University of Florida.

• Coordinated many events for encouraging the involvement of students to be a part of organization.

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