Adhesion of an Elastomer Seal to Metal and its Mitigation with Atomic Oxygen Pretreatment

2011 ◽  
Author(s):  
Marta Panickar ◽  
Janice Wasowski ◽  
Christopher Daniels
Keyword(s):  
Atomic Oxygen ◽  
Elastomer Seal

Antiadhesion elastomer seal coatings for UV and atomic oxygen protection

2014 ◽  
pp. n/a-n/a
Author(s):  
Henry C. de Groh ◽  
Bernadette J. Puleo ◽  
Deborah L. Waters ◽  
Sharon K. Miller
Keyword(s):  
Atomic Oxygen ◽  
Oxygen Protection ◽  
Elastomer Seal

Degradation Behaviour of C/C Composites by Atomic Oxygen Irradiation

2013 ◽  
Vol 28 (8) ◽  
pp. 853-858 ◽  
Author(s):  
Cong TIAN ◽  
Lai-Fei CHENG ◽  
Xin-Gang LUAN
Keyword(s):  
Atomic Oxygen ◽  
Degradation Behaviour

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.

High-Efficiency and Ground-State Atomic Oxygen-Dominant Photodegradation of Carbamazepine by Coupling Chlorine and g-C3N4

2021 ◽  
Vol 60 (5) ◽  
pp. 2112-2122
Author(s):  
Zhu Ren ◽  
Shuo Chen ◽  
Shun-Feng Jiang ◽  
Wei-Fei Hu ◽  
Hong Jiang
Keyword(s):  
Ground State ◽  
Atomic Oxygen ◽  
High Efficiency

scholarly journals The Influence of the Density of CNT Arrays on Their Atomic Oxygen Erosion Effects

2021 ◽  
Vol 1948 (1) ◽  
pp. 012209
Author(s):  
Man Li ◽  
Yuming Liu ◽  
Yu Li ◽  
Qiang Yu ◽  
Yongtai Zhang ◽  
...  
Keyword(s):  
Atomic Oxygen ◽  
Cnt Arrays ◽  
Atomic Oxygen Erosion
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