The mechanism of grain growth at general grain boundaries in SrTiO3. (November 2020)

• Record Type: Journal Article
• Authors: Sternlicht, Hadas; Rheinheimer, Wolfgang; Mehlmann, Alexander; Rothschild, Avner; Hoffmann, Michael J.; Kaplan, Wayne D.
• Is Part Of: Scripta materialia. Number 188(2020)
• Page Start: 206
• Page End: 211
• Publication Date: 2020-11
• Subjects: Disconnections -- Grain boundaries -- Grain growth -- Surface; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2020.07.015
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: In this work anisotropic motion of disconnections at general grain boundaries in SrTiO3 was detected in-situ at 1030 °C, 1040 °C and 1050 °C using transmission electron microscopy. The same anisotropic motion of ledges and terraces at the surfaces of SrTiO3 was detected in-situ. These results corroborate previous ex-situ studies on disconnection motion in SrTiO3, and experimentally confirm that anisotropic disconnection motion is the mechanism of grain growth. Graphical abstract: Image, graphical abstract