Maeva-Charlotte KERVAREC

My goal was to use the Pulsed Laser Deposition technics, in order to obtain thin Films. We focused on the Brownmillerite structure compounds because this structure shows a high concentration of oxygen vacancies, which is necessary for the diffusion of the Oxygen, finding application in the solid oxides fuel cells. My work was focusing on the conductivity measurement, that I did using the 2 probes method, and compare the values for different thin films synthesized under different conditions.

My main aim was to study soft magnet materials based on the FeCo alloy. This sort of materials, find applications on the Common Rail Injector for the diesel motors, which need a magnet with high performance and a capacity to change quickly of polarization which means a high permeability. I used different technics, such as Metal Injection moulding (MIM), a study of the magnetic properties using a Remagraph, 4 point probes methods, CON analysis, and the mechanical properties of different materials.

Thanks to the Kyoto University’s young researchers exchange program, which supported my work, I was able to conduct my research on the oxygen diffusion in the Brownmillerite structure.

sept 2013 - Aug 2014 : Master in Chemistry in Materials and Process for the Energy and Sustainable Development ( CMP@ED2 ) sept 2014 - Aug 2015 : Master in Materials Science and Large Scale facility. International Master. http://www.mamaself.eu/english/