Development of repairs for ceramic matrix composites (CMC)GE Lean Six Sigma

• Provide technical support and troubleshooting of processes (brazing, heat treatment, ndt) involved in commercial engines• Developed new component repairs and process capabilities• Review and update specifications, standards and engine manual working instructions• Leading in first article processes, qualifications and investigations• Review and evaluate engine parts deviations and liaise with OEM for CDR approval• Work with vendors on local manufacturing tooling• Actively engage in kaizen for process improvement

• Process integration and process optimization of multilayered and individual (plasma deposition and heat treatment) TiO2 and ZrO2 thin films for wear resistant self-cleaning applications on solar cells.

• Management of 3 aerospace repairs research projects and a team of 5 with a total funding of $1.2 million SGDo Grant proposal writing and application of research projects as well as grant managemento Reporting of results to external collaborators via regular project updates and meetingso Liaised with various aerospace companies such as ST Aerospace, Rolls Royce and Boeing for the research collaboration of 6 aerospace projects; working on aerospace materials and repair technologies that utilized in engine components such as the combustor and blades and vaneso Scheduling of project milestones and making sure that these milestones and deliverables can be achieved on timeo Collaboration with members from other research instituteso Delegation of tasks and mentoring of colleagues• Co-initiated and co-led the Additive Manufacturing of Ceramics, Ceramic Matrix Composites (CMC) in IMREo Optimizing of print parameters as well as designing of drawingso 3D printing utilizing stereolithography, Binderjet and Fused Deposition Modeling o Characterization of the 3D printed materialso Post sintering of the materials• Involved in the Additive Manufacturing of metals using selective laser melting• Led in the design of experiment and optimization of the research of joining and repairing of CMC and thermal barrier coatingso Chemical formulation of adhesive and post sintering of adhesive to optimize strength and durability at high temperatureo 1 award received• Led in the design of experiment and optimization of the cryogenic treatment of aerospace repairs for stress relieving purposes• Involved in deposition of a corrosion resistance layer to reduce the galvanic isolation between aluminum and carbon fiber reinforced polymer (CFRP)• Invited speaker to “The 10th International Symposium on Green and Sustainable Technologies for Materials Manufacturing and Processing”

• Involved in the research of thermal barrier coatings (TBC)o Failure analysis of premature spallation of TBC using characterization toolso Development of the hybrid microwave furnace for heat treatment process and process optimizationo Surface enhancement to increase spallation lifetime of TBC by up to 300%o Recognized with 2 awards and 1 patent filed• Involved in the shot peening of various metal alloys o Increase in component lifetime (>= 500%)o Process optimization using DOEo Developed the X-ray stress measurement and central hole drilling stress measurement systems for the failure analysis of metallic components• Involved in the research of wear resistant hard coatings o Optimization of the experimental parameters as well as characterization and analysis of the physical properties of materials to optimize and achieve clients’ requirements.o Achieved all clients’ requirements such as lifetime improvement of hard coating (130%) and increased wear resistance (>150%)o Recognized with 1 award for research work and filing of 1 patent• Thin film deposition of titanium oxide (TiO2), zinc oxide (ZnO) and vanadium oxide (VO2) using sputtering and pulsed laser deposition (PLD) for optoelectronic, self-cleaning as well as thermo-chromic applications o Optimization of thin film deposition process parameters as well as characterization of samples properties• Successfully mentored 21 students for their internship; one student (Mohammad Asshikin) was featured by the Berita Harian for his outstanding work • Procurement and Tender of Equipment and consumables for my group of 10 people

• Involved in the research of thin film and single crystal silicon solar cellso Involved in the setup of a lab including setup and design of equipment (PECVD, sputtering and characterization tools) o Troubleshooting and optimization of deposition processo Fabricated solar cells and achieved 18.43% energy conversion efficiency Fabricated TCO layers using sputtering  Fabricated silicon p-n junctions utilizing PECVD and ICP Fabricated metal electrodes via evaporation  Fabrication of back and front SiN passivation layers  Integration of the various layers• Deposition of p-type ZnO for opto-electronics applications• Characterized and analyzed properties of the fabricated materials using FTIR, Hall Effect, Raman Spectroscopy, SEM, UV/Vis, AFM, PL, SIMS, XPS, Suns Voc and IV• Invited speaker to “The 7th international conference on Zinc Oxide” held in 2015• Calculated and analyzed the theoretical properties of doped HfO2 and doped ZnO structures using Density Functional Theory (DFT) simulations• Served as teaching assistant as well as mentored FYP students

Design jigs and fixtures using AutoCAD to assist engineers in First Article ProductionImproved yields for products using statistical tools such as DOE and FMEADesign and built a circuit and housing for an IR light sourcePresentation of leak test researches, thereby assisting engineers in the test process; and China RoHS (Restriction of Hazardous and Harmful substances)