Yuxi Ma

Experience

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  Michigan State University

  Aug 2014 - Oct 2019

  1. Thermo-Mechanical, Oxygen Exchange Behavior Measurements of Mixed Ionic Electronic Conductor (MIEC) Thin Film- Depositing preferred-oriented ceramic thin film via pulsed laser deposition- Using in-situ stress sensor to measure Young’s modulus, biaxial modulus, thermal expansion coefficient, thermo-chemical expansion coefficient, oxygen nonstoichiometry, oxygen surface exchange coefficient and oxygen surface resistance of the mixed ionic electronic conductor- Combining high temperature x-ray diffraction and in-situ stress measurement to determine the thermo-chemical expansion coefficient, Young’s modulus and oxygen formation energy of a preferred-oriented MIEC thin films- Using stress relaxation to determine the effect of surface contaminants on the oxygen exchange behavior of the thin film MIEC- Using stress relaxation to determine whether the noble metal coverage can affect the oxygen surface exchange coefficient of mixed ionic electronic conductors. 2. Durable, Impermeable Brazes for Solid Oxide Fuel Cells- Predicting braze alloy systems that have a liquidus temperature between 900~1000 degree C3. Computationally Predicted Intermediate Temperature Solid Oxide Fuel Cell Brazes- Developing and manufacturing braze alloy systems that can be used for intermediate temperature solid oxide fuel cells Show less

  • Graduate Research Assistant

    Aug 2014 - Oct 2019

  • Graduate Teaching Assistant

    Aug 2014 - Dec 2014
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  University of South Carolina

  Oct 2019 - May 2021

  Postdoctoral Researcher

  1. Orienting Strained Interfaces Designed to Direct Energy Flow- Depositing epitaxial thin films with multilayer (ML) microstructure- Depositing epitaxial vertical-aligned nanostructure (VAN)- Tweak the ion transport properties (enhancing/degrading) with VAN and ML structure2. Electrocatalytic Performance of Epitaxial Thin Films on Hydrogen Peroxide Reduction Reaction (HPRR) and Oxygen Reduction Reaction (ORR)- Characterize the intrinsic catalytic performance of candidate materials with epitaxial thin film as a platform- Study the effect of strain on HPRR and ORR process3. Effect of Interfacial Strain on ORR Kinetics- Depositing epitaxial perovskite thin films with interfacial epitaxial strain ranging from tensile to compressive- Characterizing the high-temperature ORR kinetics using electrical conductivity relaxation- Characterizing the surface morphology and chemical environment with AFM and XPS Show less

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  Contemporary Amperex Technology USA Inc

  May 2021 - now

  Failure Analysis Engineer