TY - GEN
T1 - Evaluation of dual purpose goop as a candidate for self-healing thermal protection system applications
AU - Skolnik, Nathaniel L.
AU - Putnam, Zachary R.
N1 - Publisher Copyright:
© 2020, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2020
Y1 - 2020
N2 - Micrometeoroids and Orbital Debris are a significant problem in Low Earth Orbit, a problem which will worsen as humans continue to send satellites and other objects to space. This is a danger to spacecraft, as the increased amount of debris creates a higher risk of collision and subsequent catastrophic damage. One potential solution to this problem is the addition of a self-healing system to the thermal protection system that will activate should the thermal protection system be damaged. This paper examines and characterizes Dual Purpose Goop, a potential self-healing material to be used in a vascular self-healing architecture. Eight tests were performed to characterize this material for self-healing applications in a space environment: (1) outgassing, (2) char yield and characteristics, (3) thermogravimetric analysis (TGA), (4) high temperature flow survivability, (5) viscosity, (6) phase evolution, (7) spectral analysis (emissivity), (8) thermal conductivity. These tests were performed in order to understand how Dual Purpose Goop would perform as a self-healing material, how it would perform in the space environment, and how it would perform under atmospheric entry conditions. Taken together, performance in these areas may indicate whether Dual Purpose Goop is an acceptable self-healing material in a thermal protection system. Additionally, these material properties can be used in computational modeling, which is necessary as there are no facilities available to accurately reproduce the environment seen on reentry.
AB - Micrometeoroids and Orbital Debris are a significant problem in Low Earth Orbit, a problem which will worsen as humans continue to send satellites and other objects to space. This is a danger to spacecraft, as the increased amount of debris creates a higher risk of collision and subsequent catastrophic damage. One potential solution to this problem is the addition of a self-healing system to the thermal protection system that will activate should the thermal protection system be damaged. This paper examines and characterizes Dual Purpose Goop, a potential self-healing material to be used in a vascular self-healing architecture. Eight tests were performed to characterize this material for self-healing applications in a space environment: (1) outgassing, (2) char yield and characteristics, (3) thermogravimetric analysis (TGA), (4) high temperature flow survivability, (5) viscosity, (6) phase evolution, (7) spectral analysis (emissivity), (8) thermal conductivity. These tests were performed in order to understand how Dual Purpose Goop would perform as a self-healing material, how it would perform in the space environment, and how it would perform under atmospheric entry conditions. Taken together, performance in these areas may indicate whether Dual Purpose Goop is an acceptable self-healing material in a thermal protection system. Additionally, these material properties can be used in computational modeling, which is necessary as there are no facilities available to accurately reproduce the environment seen on reentry.
UR - http://www.scopus.com/inward/record.url?scp=85090235153&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85090235153&partnerID=8YFLogxK
U2 - 10.2514/6.2020-0401
DO - 10.2514/6.2020-0401
M3 - Conference contribution
AN - SCOPUS:85090235153
SN - 9781624105951
T3 - AIAA Scitech 2020 Forum
BT - AIAA Scitech 2020 Forum
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA Scitech Forum, 2020
Y2 - 6 January 2020 through 10 January 2020
ER -