Pressure assisted flash sintering of Mn-Co based spinel coatings for solid oxide electrolysis cells (SOECs). Issue 12 (15th June 2021)

• Record Type: Journal Article
• Authors: Javed, Hassan; Saunders, Theo; Reece, Michael John; Zanchi, Elisa; Sabato, Antonio Gianfranco; Boccaccini, Aldo R.; Smeacetto, Federico
• Is Part Of: Ceramics international. Volume 47:Issue 12(2021)
• Page Start: 17804
• Page End: 17808
• Publication Date: 2021-06-15
• Subjects: Flash sintering -- Protective coatings -- EPD -- SOEC -- SOFC; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2021.03.055
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Pressure assisted flash sintering was used to process Mn-Co-Cu based spinel coatings, electrophoretically deposited on a Crofer22APU interconnect. This method resulted in highly dense coatings, heat-treated for only a short duration (<10 min) at temperatures lower than conventional sintering temperatures. The electrophoretically deposited coatings showed no delamination or cracks after flash sintering at high heating rates (>200 ° C/min). The high heating rate promoted Cu modified Mn-Co spinel and limited the formation of a Cr-oxide scale on the Crofer22APU substrate. Flash sintering was found to be a promising and time efficient sintering technique to overcome some of the issues related to low coating density and oxide scale formation in solid oxide electrolysis cell conditions.