Advances in Digital Microstructure Generation of a Pemfc Gdl with Localized Binder and Ptfe Distributions

نویسندگان

  • Piero Lunghi
  • Michael M. Daino
چکیده

In this work, a new framework and model for the digital generation and characterization of the microstructure of GDL materials with localized binder and polytetrafluoroethylene (PTFE) distributions were developed using 3D morphological imaging processing. This new generation technique closely mimics manufacturing processes and produces for the first time complete phase-differentiated (void, fiber, binder, and PTFE) digital 3D microstructures in a costand timeeffective manner. The results for the digital generation of Toray TGP-H-060 with 5 and 0 wt.% PTFE were in close agreement with confocal laser scanning microscope (CLSM) images as well as 3D X-ray tomography studies. The resulting structure can be readily used for analyzing transport processes utilizing commercial CFD software.

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تاریخ انتشار 2012