Accession Number:

AD1021359

Title:

Tightly Coupled Mechanistic Study of Materials in the Extreme Space Environment

Descriptive Note:

Technical Report,01 Jul 2011,30 Jun 2016

Corporate Author:

Pennsylvania State University University Park United States

Report Date:

2016-10-11

Pagination or Media Count:

32.0

Abstract:

The Tightly Coupled Mechanistic Study of Materials in the Extreme Space Environment Group has worked to examine spacecraft contamination issues from the perspective of non-equilibrium gas dynamics Levin, material response at the atomistic level Rajan, high fidelity gas-surface chemistry models van Duin, and experiments to characterize and test spacecraft material damage by small source ion bombardment Sedwick. The goals of the group have been ambitious given the multi-length and time-scale facets that make this problem tremendously challenging. The length scales of contamination vary by probably twelve orders of magnitude and the variation in time scales is similar. The group has had a number of successes, described in 43 journal and conference papers that have been published or are in progress. We established collaborations across length scales, ranging from the smallest Angstroms to the largest scales. As such, significant progress was made in the development of computational and experimental collaborative frameworks suitable for predicting the spacecraft environment for new propellants and spacecraft materials.

Subject Categories:

  • Miscellaneous Materials
  • Electric and Ion Propulsion
  • Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE