Electro-static Levitation Furnace (ELF): The crew replaced the ELF gas bottle unit in the ELF facility. ELF is an experimental facility designed to levitate, melt and solidify materials by containerless processing techniques using the electrostatic levitation method. With this facility thermophysical properties of high temperature melts can be measured and solidification from deeply undercooled melts …
Click here for original story, ISS Daily Summary Report – 9/17/2019
Source: ISS Report