Title: OS1916 Influence of Temperature on Ejecta Size Distribution Resulting from Hypervelocity Impacts of Projectiles on Thick Aluminum Alloy Targets
Abstract: The temperature of spacecraft and satellites in low Earth orbit varies from approximately -150°C to 200°C. In this study, we investigated the influence of temperature on ejecta composition and crater formation in thick aluminum alloy targets for an impact velocity of 2 km/s, using a two-stage light-gas gun. The size distribution of ejecta collected from the test chamber were examined in detail.