Martien Deffo, PhD

Experience

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  Ecole normale supérieure de Lyon

  Feb 2015 - Jul 2015

  Internship: polyionic liquid membrane for energy storage device "fuel cell & Li-ion battery"

  Synthese of polymers (RAFT, ATRP) and characterization (GPC)Synthese and characterization of polyionic membrane for Energy storage Electrochemical characterizations using Electrochemical impedance spectroscopy Used of Ionic liquids as support electrolyte

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  IFP Energies nouvelles

  Oct 2015 - Oct 2018

  PHD Student (IFPEN -French corrosion institute)

  H2S and CO2 corrosion in oil and gas industry,Electrochemical impedance spectroscopy,Thermodynamic in solution sulphur compounds analysis

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  Vallourec

  Nov 2018 - Jun 2022

  R&D Corrosion Engineer at Vallourec Research Center France (VRCF)

  - Lead the S13Cr and CRA qualification studies relates to market and customer needs: define the right material to test, ensure the validity of the tests carried out and capitalize the results;- Propose ways to improve the development of new steels resistant to corrosion, assess performance and capitalize technical knowledge;- Establish new tests and optimization of existing tests- Realize technological survey (bibliographic reports)- Write scientific publications to promote VRCF’s corrosion expertise and ensure the technical promotion of 13Cr and CRA products- Develop research and development partnerships with universities and other technical centers Show less

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  DataScientest.com

  Oct 2021 - Jun 2022

  Machine Learning project - Predicting electricity consumption in France

  Machine Learning project - Predicting electricity consumption in France after studying the French electricity system under both meteorological and production constraints- Development of ML models predicting electricity consumption in France- Exploration, cleaning, visualisation, training, evaluation- Data extracted from RTE (Réseau de Transport d'Électricité), which manages the high-voltage electricity transmission network in mainland France- 120h+ ; Python & Streamlit ; 86k lines ; highly commended by the jury Show less

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  Constellium

  Jun 2022 - now

  Senior Research And Development Engineer (Corrosion)

  - Lead corrosion studies on aluminium alloys (brazed, welded and extruded) used in the automotive industry (heat exchangers, battery Box, skin alloys and structural alloys).-Support the packaging team in the characterisation of coatings in beverage & food can using electrochemical methods ( EIS , LPR , LP...) - Participate in the development and qualification of new aluminium alloys for the automotive industry (Focus on alloys with high recycling content and alloys suitable for battery Box).- Realize research and technological survey, optimization of the corrosion testing methods of Aluminium alloys/ Data analysis - Take part in conferences to promote Constellium's expertise, and develops and/or consolidates partnerships with other research centers and universities. Show less