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Long-Term Cell Testing Of Interlayer-Free Lanthanum Strontium Cobalt Ferrite Cathodes For Solid Oxide Fuel Cells, Gianfranco Digiuseppe, Venkatesh Boddapati, Hiten Mothikhana
Long-Term Cell Testing Of Interlayer-Free Lanthanum Strontium Cobalt Ferrite Cathodes For Solid Oxide Fuel Cells, Gianfranco Digiuseppe, Venkatesh Boddapati, Hiten Mothikhana
Mechanical Engineering Publications
Sub-stoichiometric LSCF nanopowders with composition of (La0.6Sr0.40)0.95Co0.2Fe0.80O3-d were prepared using a nitrate-glycine process. The particle size is estimated to be 28.8 nm using the Scherrer equation. A sintering study and pull test was done to determine the quality of LSCF adhesion to the YSZ electrolyte. It was found that firing the cathode at 850oC does not provide the best adhesion, but button cell testing data indicate that the performance is stable over relatively long-term tests. The cell performance is not up to par to state-of-the-art Ni-YSZ/YSZ/SDC/LSCF where a barrier layer is used and the cathode is fired at high temperatures. …
Drivers Of Research Topic Selection For Engineering Doctoral Students, Erika A. Mosyjowski, Shanna R. Daly, Diane L. Peters
Drivers Of Research Topic Selection For Engineering Doctoral Students, Erika A. Mosyjowski, Shanna R. Daly, Diane L. Peters
Mechanical Engineering Publications
In this study, we explored engineering doctoral students’ motivations for selecting their research topic. The extent to whichindividuals are intrinsically or extrinsically motivated and the autonomy they have to make their own decisions hasimplications for their enjoyment of and success at a particular task. Given the importance of motivation, we sought toaddress a gap in the understanding of how doctoral students in engineering decide on a particular problem to study. Ourfindings are based on interviews with students with varying past educational and professional experiences that enable us tocapture a wide range of motivations for engineering PhD students’ research subject decisions. …