Liquid-Metal Particles (2 of 2) (IMAGE) Iowa State University Caption The vial contains liquid-metal particles suspended in ethanol. The particles were used to demonstrate heat-free soldering. Credit Photo by Christopher Gannon/Iowa State University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.