|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Advanced Real Time Imaging
||High-Temperature Wetting of Calcium Alloys and Molten Salts
||Athan Sanders, Bitong Wang, Douglas H. Kelley
|On-Site Speaker (Planned)
Wetting of steels by calcium alloys and molten salts is of interest to optimizing the efficiency of liquid metal batteries. Low contact angle is indicative of good wetting, which in turn is indicative of good electrical contact and low resistance. In this study, we utilize the sessile drop method to observe contact angles of calcium alloys and molten salts on steel substrates at 500℃, the operating temperature of the batteries. Solid reagents are mixed inside a needle heating device, and a drop is deposited onto the substrate below that sits on a thermal plate. Afterwards, a thermal cycling experiment is performed where the temperature of the plate is repeatedly lowered until the drop solidifies and increased until it melts. Video of the drop is recorded, and then analyzed by the open-source program OpenDrop. With the contact angles measured, the relative wetting of each fluid and substrate combination can be determined.
||Characterization, High-Temperature Materials,