Grain Boundaries 2 (IMAGE) Lehigh University Caption An automated trace of the grain boundaries and triple junctions corresponding to the microstructure shown in Figure 1a. Credit Courtesy of Lehigh University Usage Restrictions No restrictions. License CC0 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.