Flash sintering of 3YSZ and in-situ joining with 304 stainless steel using copper as an interlayer. (15th March 2021)

• Record Type: Journal Article
• Authors: Cao, Yue; Xu, Guo-Cheng; Li, Lin; Mao, Hai-Rong; Guo, Rui-Fen; Shen, Ping
• Is Part Of: Scripta materialia. Number 194(2021)
• Publication Date: 2021-03-15
• Subjects: Flash sintering -- Flash joining -- 3YSZ -- Interfacial reaction; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2020.113709
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: We demonstrated the feasibility of flash sintering of 3 mol% yttria-stabilized zirconia (3YSZ) and its in-situ joining with metal by applying an electric field. Herein, rapid densification of 3YSZ and its robust joining with 304 stainless-steel by using copper as a soft interlayer were achieved under a preset alternating current/direct current (AC/DC) field within only 1 min at 950 °C. Nevertheless, defects were present in the microstructures of the joints under the application of a single AC or DC field. The sintering-joining mechanisms were addressed in view of electric field-induced Joule heating and internal electrochemical reaction. Graphical abstract: Image, graphical abstract