Modeling of Joule heating in KNN FLASH sintering
March 10-15, 2019
In this work, we propose the use of FLASH sintering as an alternative technique to densify Potassium Sodium Niobate, K0.5Na0.5NbO3, KNN, a piezoceramic with relevant promising applications and a possible viable substitute of lead zirconate titanate based compositions (Pb1-x ZrxTiO3, PZT). We aim to increase this material performance by densifying KNN ceramics without secondary phase segregation. Furthermore, FLASH will contribute to a more sustainable processing of piezoelectrics as lead-free ceramics at reduced sintering temperature and time.
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Ricardo Serrazina, Julian Dean, Ian M. Reaney, Ana M.O.R. Senos, Paula M. Vilarinho, and Luis Pereira, "Modeling of Joule heating in KNN FLASH sintering" in "Electric Field Enhanced Processing of Advanced Materials II: Complexities and Opportunities", Rishi Raj, University of Colorado, USA Olivier Guillon, Forschungzentrum Jülich, Germany Hidehiro Yoshida, National Institute for Materials Science, Japan Eds, ECI Symposium Series, (2019). https://dc.engconfintl.org/efe_advancedmaterials_ii/78