Tungsten Heavy Alloy (IMAGE) NASA/Johnson Space Center Caption A cross-section examination of the tungsten heavy alloy after a sintering on Earth. Scientists study cross-sections like this to learn more about sintered components' density and expect to see different densities for items sintered aboard the space station. Credit Rand German 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.