Changes of properties of the materials of spacecraft solar arrays under the action of atomic oxygen

Shuvalov, V. A.; Kochubei, G. S.; Priimak, A. I.; Pis’mennyi, N. I.; Tokmak, N. A.

doi:10.1134/s001095250704003x

Cited by 21 publications

(2 citation statements)

References 9 publications

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“…These conditions include deep vacuum, a sharp temperature drop (from −170 to +200 °C), ionizing radiation, vacuum ultraviolet radiation, micrometeorite particles, atomic oxygen, etc. Under the influence of these conditions, many polymers are destroyed, which leads to a serious violation of their functionalities [6, 7, 8, 9, 10, 11].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and radiation shielding properties of polyimide/Bi2O3 composites

Павленко

Черкашина

Yastrebinsky

2019

Heliyon

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Radiation shielding composites based on polyimide and Bi 2 O 3 were synthesized. Surface and physical-mechanical properties of polyimide/Bi 2 O 3 composites were studied. Bi 2 O 3 particles were modified by polymethylphenylsiloxane for the uniform distribution of filler in composites. This paper presents data on the production of composites in two ways: hot- and cold-pressing. The hot-pressing method for the synthesis of composites is preferable compared to the cold-pressing method (the density increases by 10–12%, and the Vickers microhardness by 10–20%). The results show that the introduction of Bi 2 O 3 significantly increases the thermal stability of the composites. At 680 °C, a polymer composite containing 10 wt% Bi 2 O 3 retains 9.7% of its mass, and at 60 wt% Bi 2 O 3 , retains 58.4%. The radiation-protective characteristics of the composites with respect to gamma radiation were evaluated by experimental and theoretical methods. High radiation-protective characteristics of the composites have been established in the gamma-quanta energy range of 0.1–1 MeV.

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Section: Introductionmentioning

confidence: 99%

Synthesis and radiation shielding properties of polyimide/Bi2O3 composites

Павленко

Черкашина

Yastrebinsky

2019

Heliyon

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“…The change of the discharge current of the plasma accelerator from 0.7 to 5.0 A allows one to obtain AO ion flows with the velocity ≈ 7.6 km/s and a concentration of 5 × 10 13 -2 × 10 16 m 3 in the operating section of the vacuum chamber of the test bench. The axial and radial distributions of the charged-particle concentration in the high-speed plasma flow of atomic-molecular oxygen are given in [21].…”

Section: Experimental Techniquesmentioning

confidence: 99%

Physical simulation of the action of atomic oxygen and vacuum ultraviolet radiation on polymer materials in the earth’s ionosphere

2016

Self Cite

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A procedure of the physical (bench) simulation of the long-term interaction of polymer materials with flows of atomic oxygen and vacuum ultraviolet radiation in the earth's ionosphere is designed. The efficiency of the bench measurements of mass losses of kapton-H and PM-1E polyimides, polyethylene, and FEP Teflon is confirmed by results of satellite measurements. The dependences of degradation of polymer films on the fluence of atomic oxygen are determined. They allow one to forecast time changes of mass and geometric characteristics of polymers during the whole operating period in the ionosphere. The synergetic effect of the action of the near-satellite environment on the ablation of the polymer films characterizes threshold ratio values of the vacuum ultraviolet energy flow to the atomic oxygen flow.

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Photovoltaics literature survey (No. 59)

Shalav

2007

Progress in Photovoltaics

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Changes of properties of the materials of spacecraft solar arrays under the action of atomic oxygen

Cited by 21 publications

References 9 publications

Synthesis and radiation shielding properties of polyimide/Bi2O3 composites

Synthesis and radiation shielding properties of polyimide/Bi2O3 composites

Physical simulation of the action of atomic oxygen and vacuum ultraviolet radiation on polymer materials in the earth’s ionosphere

Photovoltaics literature survey (No. 59)

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