Degradation of Spacecraft Materials

Autor: Bruce A. Banks, Joyce A. Dever, Kim K. de Groh, Sharon K. Miller
Rok vydání: 2018
Předmět:
DOI: 10.1016/b978-0-323-52472-8.00029-0
Popis: Publisher Summary This chapter provides descriptions of specific space environmental threats to exterior spacecraft materials. It summarizes space exposure studies and laboratory simulations of individual and combined space environmental threats. A significant emphasis is placed on effects of Earth orbit environments because the majority of space missions have been flown in Earth orbits, which have provided a significant amount of data on materials effects. Issues associated with interpreting materials degradation results are discussed and deficiencies of ground testing are identified. Recommendations are provided on reducing or preventing space environmental degradation through appropriate materials selection. The chapter concludes that spacecraft materials exposed to low Earth orbit environments have been found to undergo degradation or damage due to environmental threats including atomic oxygen, contamination, radiation, temperature effects and temperature cycling, and micrometeoroids and orbital debris. The degree to which the space environment degrades or damages materials depends upon the unique conditions of an individual spacecraft environment and the susceptibility of the material to being altered by these environmental exposures.
Databáze: OpenAIRE