Научная электронная библиотека ULRICH'S Periodicals Directory

Сибирский государственный университет
науки и технологий имени академика М.Ф. Решетнева

Сибирский аэрокосмический журнал
ISSN 2712-8970 (Print) ISSN 2782-5760 (on-line)

Сведения об образовательной организации

UDK 681.516.75
DESTRUCTIVE EFFECTS OF ENVIRONMENTAL FACTORS ON THE PROPERTIES OF RADIO REFLECTIVE COATING FOR ANTENNA REFLECTORS FROM THE POLYMERIC COMPOSITE MATERIALS
A. E. Miheev1, A. V. Girn1, D. V. Ravodina1, I. I. Khomenko1, R. V. Alyakretskiy2*
1Reshetnev Siberian State Aerospace University 31, Krasnoyarsky Rabochy Av., Krasnoyarsk, 660037, Russian Federation 2 JSC “Information satellite systems” named after academician M. F. Reshetnev” 52, Lenin St., Zheleznogorsk, 662972, Russian Federation *Е-mail: vah@iss-reshetnev.ru
In this case study the influence of destructive environmental factors such as humidity, temperature and UV radiation on the adhesive strength, microstructure and properties of coatings of radio-reflectivity antenna reflectors made of polymeric composite materials (PCM) has been analyzed. For the test samples we used carbon and fiberglass units with various reinforcement schemes. Radio-reflective coated surfaces are multi-layer composition, which has been applied by vacuum metallization method via magnetron usage. For the coating we’ve designed the layout drawing for the vacuum chamber, which en-ables a multi-layer coating process to be applied to large surface area of a product per load. This helps to improve the quality and performance of the coating process. Sputtering of one- and two-layer coatings on samples of carbon fiber and fiberglass has been made for the research purposes. When the coating process was completed, the samples were tested in climatic chamber. Studies of adhesion strength of coated samples before and after environmental tests have shown that the double-layered coated samples have greater cohesive strength than the monolayer. In single-layer coating adhesion is 1–2score at the bilayer – 0–1 score in ISO 2490. A noticeable influence of destructive factors on the adhesion strength is not revealed. Morphology and elemental analysis of the coating showed that the coating is distributed uniformly over the surface and noticeable changes after the test in a climatic chamber have been detected. Therefore, it could be concluded that the coatings deposited according to the proposed technology are resistant to the environment and can be used as coatings radio-reflectivity terrestrial reflector antenna.
Keywords: vacuum deposition, coating stack reflector antennas, polymeric composites.
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Miheev Anatolii Egorovich – Dr. Sc., professor, head of Flying vehicles department, Reshetnev Siberian State Aerospace University. E-mail: michla@mail.ru.

Girn Aleksei Vasilyevich – Cand. Sc., Docent, Docent of Flying vehicles department, Reshetnev Siberian State Aerospace University. E-mail: girn007@gmail.com.

Ravodinа Daria Vladimirovna – postgraduate student, Reshetnev Siberian State Aerospace University. E-mail: Dashaorlova12@yandex.ru.

Khomenko Igor Ivanovich – engineer, Reshetnev Siberian State Aerospace University. E-mail: khomenko.igor.iv@gmail.com.

Alyakritsky Roman Viktorovich – postgraduate student, Reshetnev Siberian State Aerospace University.