Flame‐assisted flash sintering: A noncontact method to flash sinter coatings on conductive substrates. Issue 2 (20th September 2017)

• Record Type: Journal Article
• Authors: Johnson, Stephen L.; Venugopal, Ganesh; Hunt, Andrew T.
• Is Part Of: Journal of the American Ceramic Society. Volume 101:Issue 2(2018)
• Page Start: 536
• Page End: 541
• Publication Date: 2017-09-20
• Subjects: ceramic‐metal systems -- coatings -- environmental barrier coatings (EBC) -- Field Assisted Sintering Technology (FAST) -- sinter/sintering; Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.15218
• Languages: English
• ISSNs: 0002-7820

Abstract

Abstract: We present a novel and effective method for sintering ceramic coatings onto metallic substrates. This new technique, called Flame‐assisted flash sintering (FAFS), utilizes a flame as both a heating source and a conformal, current‐carrying top electrode to facilitate flash sintering. Using this method, Yttria‐stabilized Zirconia (8 mol% Y, 8YSZ) coatings are sintered onto stainless steel substrates to controlled degrees of porosity in rapid fashion. Flame‐assisted flash sintering utilizes a dynamic soft electrode for flash sintering and has commercial potential to sinter ceramic coatings on complex‐shaped substrates for a variety of applications including tribological or thermal protection coatings.