On the possibility of obtaining thermal control coatings for spacecraft by printing

Статья в журнале

There has been considered a method to produce “Optical Solar Reflector” (OSR) class thermal control coatings (TCC) for spacecraft by applying a paste of required composition on a substrate by a printed circuit boards (PCB) printer. 2 types of pastes were applied: dielectric ceramic paste (DCP), consisting of a filler – ground polycor (Al2O3) – and a solvent with a thickener (terpineol with ethyl cellulose); conductor paste of PP-17 grade consisting of silver particles and an organic terpineol-based binding medium. After heating the pastes at 150 °C and subsequent annealing at 850 °C for 2 h, layers of aluminum oxide or silver are deposited on the surface of the substrate, which have a high reflectance in the solar spectral range (0.2–2.5 μm). The solar absorptance (αs) is 0.143 for the coating based on the DCP paste and 0.23 for the coating based on the PP-17 paste, and these values follow the requirements of the OSR class TCC. The coating based on the DCP paste features a high radiation resistance (αs = 0.173 after irradiation by electrons with energy of 30 keV and fluence of 3·1016cm−2).

Журнал:

• Materials Chemistry and Physics
• Elsevier Ltd (Albrechtsfeld)
• Индексируется в Scopus, Web of Science

Библиографическая запись: On the possibility of obtaining thermal control coatings for spacecraft by printing [Electronic resource] / M. M. Mikhailov [et al.] // Materials Chemistry and Physics. – 2023. – Vol. 310. – P. 128472. – DOI: 10.1016/j.matchemphys.2023.128472