Mechanochemistry in action (IMAGE) DOE/Ames National Laboratory Caption Ball milling chamber contents: spodumene, reactant, and steel balls. Credit U.S. Department of Energy, Ames National Laboratory Usage Restrictions No restrictions. License Public Domain 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.