Structural material selection and processing for low Earth orbit spacecraft regarding atomic oxygen effects

2003 ◽  
Author(s):  
S. Avcu ◽  
B. Celik
Keyword(s):  
Structural Material ◽  
Atomic Oxygen ◽  
Material Selection ◽  
Low Earth Orbit ◽  
Earth Orbit ◽  
Oxygen Effects

scholarly journals Atomic Oxygen Effects on Space Materials in Low Earth Orbit and Its Ground Evaluation

2009 ◽  
Vol 52 (9) ◽  
pp. 475-483 ◽  
Author(s):  
Yugo KIMOTO ◽  
Eiji MIYAZAKI ◽  
Junichiro ISHIZAWA ◽  
Hiroyuki SHIMAMURA
Keyword(s):  
Atomic Oxygen ◽  
Low Earth Orbit ◽  
Earth Orbit ◽  
Oxygen Effects

scholarly journals Atomic Oxygen Effects in Low Earth Orbit.

Shinku ◽  
1995 ◽  
Vol 38 (6) ◽  
pp. 587-592 ◽  
Author(s):  
Nobuo OHMAE
Keyword(s):  
Atomic Oxygen ◽  
Low Earth Orbit ◽  
Earth Orbit ◽  
Oxygen Effects

Atomic Oxygen Effects on POSS Polyimides in Low Earth Orbit

2012 ◽  
Vol 4 (2) ◽  
pp. 492-502 ◽  
Author(s):  
Timothy K. Minton ◽  
Michael E. Wright ◽  
Sandra J. Tomczak ◽  
Sara A. Marquez ◽  
Linhan Shen ◽  
...  
Keyword(s):  
Atomic Oxygen ◽  
Low Earth Orbit ◽  
Earth Orbit ◽  
Oxygen Effects

Low earth orbit atomic oxygen effects on surfaces

1984 ◽  
Author(s):  
L. LEGER ◽  
J. VISENTINE ◽  
J. KUMINECZ
Keyword(s):  
Atomic Oxygen ◽  
Low Earth Orbit ◽  
Earth Orbit ◽  
Oxygen Effects

Atomic Oxygen Effects of Polyimide/Silica Hybrid Films in Low Earth Orbit Environment

2010 ◽  
Vol 177 ◽  
pp. 686-689 ◽  
Author(s):  
Shu Wang Duo ◽  
Mi Mi Song ◽  
Ying Luo ◽  
Ting Zhi Liu ◽  
Wei Min Gao
Keyword(s):  
Atomic Oxygen ◽  
Hybrid Film ◽  
Sol Gel ◽  
Polyimide Film ◽  
Low Earth Orbit ◽  
Earth Orbit ◽  
Hybrid Films ◽  
Oxygen Effects ◽  
Sol Gel Process ◽  
Silica Hybrid

To improve AO resistance of polyimide, a type of polyimide/silica (PI/SiO2) hybrid film was prepared by the sol-gel process. The coupling agent p-aminophenyltrimeth- oxysilane (APTMOS) was chosen to enhance the compatibility between the polyimide (PI) and silica (SiO2). AO resistance of the PI/SiO2 hybrid films were tested in the ground-based simulation AO facility. The erosion yield of the films was 4.7×10-26 cm3/atom, decreased by two orders of magnitude compared with the value of 3.0×10-24 cm3/atom of the polyimide film. Results from FTIR, XPS, AFM on AO treated polyimide/silica hybrid films indicate the formation of a passivating inorganic SiO2 layer. The layer significantly retards the penetration of oxygen atoms, preventing further degradation of the polymer in the bulk. The addition of SiO2 in polyimide does not significantly alter the optical properties of polyimide during AO exposure.

scholarly journals The Effect of Low Earth Orbit Atomic Oxygen Exposure on Phenylphosphine Oxide-Containing Polymers

2000 ◽  
Vol 12 (1) ◽  
pp. 43-52 ◽  
Author(s):  
John W Connell
Keyword(s):  
Thin Film ◽  
Atomic Oxygen ◽  
Low Earth Orbit ◽  
Space Environment ◽  
Earth Orbit ◽  
Cooperative Effort ◽  
Flight Experiment ◽  
Oxygen Exposure ◽  
Atomic Oxygen Exposure ◽  
Phenylphosphine Oxide

Thin films of phenylphosphine oxide-containing polymers were exposed to low Earth orbit aboard a space shuttle flight (STS-85) as part of flight experiment designated Evaluation of Space Environment and Effects on Materials (ESEM). This flight experiment was a cooperative effort between the NASA Langley Research Center (LaRC) and the National Space Development Agency of Japan (NASDA). The thin-film samples described herein were part of an atomic oxygen exposure (AOE) experiment and were exposed to primarily atomic oxygen (∼1×1019 atoms cm−2). The thin-film samples consisted of three phosphine oxide-containing polymers (arylene ether, benzimidazole and imide). Based on post-flight analyses using atomic force microscopy, x-ray photo-electron spectroscopy and weight loss data, it was found that the exposure of these materials to atomic oxygen (AO) produces a phosphorus oxide layer on the surface of the samples. Earlier work has shown that this layer provides a barrier towards further attack by AO. Consequently, these materials do not exhibit linear erosion rates which is in contrast with most organic polymers. Qualitatively, the results obtained from these analyses compare favourably with those obtained from samples exposed to AO and/or an oxygen plasma in ground-based exposure experiments. The results of the low Earth orbit AO exposure on these materials will be compared with those of ground-based exposure to AO.

Atomic oxygen effect on physical properties of spacecraft materials in low earth orbit

1989 ◽  
Author(s):  
KATSUMI SONODA ◽  
TAKAO NISHIKAWA ◽  
KOUICHIROU NAKANISHI
Keyword(s):  
Physical Properties ◽  
Atomic Oxygen ◽  
Low Earth Orbit ◽  
Oxygen Effect ◽  
Earth Orbit

Concentration of atomic oxygen in low earth orbit and in the laboratory for use in high quality oxide thin film growth

1998 ◽  
Author(s):  
J. A. Schultz ◽  
K. Eipers-Smith ◽  
K. Waters ◽  
S. Schultz ◽  
M. Sterling ◽  
...  
Keyword(s):  
Thin Film ◽  
Atomic Oxygen ◽  
Film Growth ◽  
Low Earth Orbit ◽  
Thin Film Growth ◽  
Oxide Thin Film ◽  
Earth Orbit ◽  
High Quality
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