Work

Ceramic thermal control coating based on yttrium oxide

Year: 2026

Type: article

Abstract: The paper presents the results of studying the radiation stability of the newly designed ceramic thermal control coatings based on the yttrium oxide pigment (Y 2 O 3 ) and potassium liquid glass (K 2 SiO 3 ). The optimal pigment/binder mass ratio (80:20) was experimentally determined. This ratio provides the highest adhesion and the lowest solar absorptance (α s ). The pigment was modified with 1 and 2 wt% silicon dioxide (SiO 2 ) nanoparticles to study the effect of modification on the optical properties of the coatings exposed to accelerated electrons (30 keV, fluence up to 7·10 16 cm −2 ). It was confirmed that all of the obtained coatings show efficient initial optical properties (α s = 0.062–0.074) and the coatings based on modified pigment possess increased radiation stability. The results indicate the applicability of coatings based on yttrium oxide for passive thermal control systems of spacecraft.

Source: Next Materials

DOI: 10.1016/j.nxmate.2026.102997

Authors: M.M. Mikhailov, S.A. Yuryev, D.S. Fedosov, A.N. Lapin, V.A. Goronchko

Institution: Tomsk State University of Control Systems and Radio-Electronics

Language: English

Topic: Thermal Radiation and Cooling Technologies

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,280

Funder: Russian Science Foundation