Enhanced resistance to the atomic oxygen exposure of POSS/polyimide composite fibers with surface enrichment through wet spinning

2018 ◽  
Vol 105 ◽  
pp. 115-125 ◽  
Author(s):  
Fangfang Liu ◽  
Haiquan Guo ◽  
Yong Zhao ◽  
Xuepeng Qiu ◽  
Lianxun Gao
Keyword(s):  
Atomic Oxygen ◽  
Wet Spinning ◽  
Composite Fibers ◽  
Surface Enrichment ◽  
Oxygen Exposure ◽  
Enhanced Resistance ◽  
Atomic Oxygen 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.

Hydrogen desorption from a diamond-like carbon film by hyperthermal atomic oxygen exposure

2009 ◽  
Vol 255 (13-14) ◽  
pp. 6710-6714 ◽  
Author(s):  
Kumiko Yokota ◽  
Masahito Tagawa ◽  
Akira Kitamura ◽  
Koji Matsumoto ◽  
Akitaka Yoshigoe ◽  
...  
Keyword(s):  
Atomic Oxygen ◽  
Carbon Film ◽  
Hydrogen Desorption ◽  
Diamond Like Carbon ◽  
Oxygen Exposure ◽  
Diamond Like Carbon Film ◽  
Atomic Oxygen Exposure

Formation and stability of germanium oxide induced by atomic oxygen exposure

2006 ◽  
Vol 9 (4-5) ◽  
pp. 673-678 ◽  
Author(s):  
Alessandro Molle ◽  
Md. Nurul Kabir Bhuiyan ◽  
Grazia Tallarida ◽  
Marco Fanciulli
Keyword(s):  
Atomic Oxygen ◽  
Germanium Oxide ◽  
Oxygen Exposure ◽  
Atomic Oxygen Exposure

Interface analysis of inorganic films on polyimide with atomic oxygen exposure

2013 ◽  
Vol 216 ◽  
pp. 121-126 ◽  
Author(s):  
Yongxian Huang ◽  
Shixiong Lv ◽  
Xiubo Tian ◽  
Ricky K.Y. Fu ◽  
Paul K. Chu
Keyword(s):  
Atomic Oxygen ◽  
Interface Analysis ◽  
Oxygen Exposure ◽  
Inorganic Films ◽  
Atomic Oxygen Exposure

Characterization of novel spacecraft materials under high energy electron and atomic oxygen exposure

2022 ◽  
Author(s):  
Elena Plis ◽  
Miles Bengtson ◽  
Daniel P. Engelhart ◽  
Gregory Badura ◽  
Timothy Scott ◽  
...  
Keyword(s):  
Atomic Oxygen ◽  
High Energy ◽  
Energy Electron ◽  
High Energy Electron ◽  
Oxygen Exposure ◽  
Atomic Oxygen Exposure
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