Properties and Prospects for the Application of Lithium Liquid Glass in the Thermal Control Coatings of Spacecraft
Статья в журнале
A comparative study is carried out concerning the radiation resistance of the optical properties of binders for thermal control coatings of spacecraft: widely sold liquid glass K2SiO3 and newly developed liquid glass Li2SiO3. In the case of analysis of diffuse reflectance spectra (ρλ) in the wavelength range 0.2–2.5 μm and the integral radiation-absorption coefficient (as) both before and after electron irradiation, an incomparably higher radiation resistance of Li2SiO3 liquid glass compared to K2SiO3 glass is established. The values of the change in the absorption coefficient ∆as of liquid glass Li2SiO3 comparing to that of K2SiO3 liquid glass are several times less: for electron irradiation with an estimate of 30 keV at a fluence of Ф = 2 × 1016 cm–2, it is 35 times; at Ф = 4 × 1016 cm–2, it is 25 times; and at Ф = 6 × 1016 cm–2, it is 7 times. Analysis of the factors that determine the radiation resistance of these glasses is performed. The advantage of the radiation resistance of Li2SiO3 liquid glass makes it promising for use as binding compounds in the thermal control coatings of spacecraft, in paints, ceramics and other areas of technology and industry with the presence of ionizing radiation.
Журнал:
- Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques
- Pleiades Publishing, Ltd. (New York City)
- Индексируется в Scopus, Web of Science
Библиографическая запись: Properties and Prospects for the Application of Lithium Liquid Glass in the Thermal Control Coatings of Spacecraft [Electronic resource] / M. M. Mikhailov [et al.] // Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques. – 2023. – Vol. 17. – Iss. 3. – P. 568-573. – DOI: 10.1134/S1027451023030126