Peter Sushko, PNNL (IMAGE) DOE/Brookhaven National Laboratory Caption Peter Sushko, a theorist at DOE's Pacific Northwest National Laboratory involved in the computational modeling that helped explain the properties of tantalum during oxidation. Credit Pacific Northwest National Laboratory Usage Restrictions OK for use with stories about this research. License Original 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.