Study of the photo-stability of ceramic thermal control coating based on aluminium oxide

被引：0

作者：

Mikhailov, M. M. ^{[1
]}

Lapin, A. N. ^{[1
]}

Yuryev, S. A. ^{[1
]}

Goronchko, V. A. ^{[1
]}

Artishchev, S. A. ^{[1
]}

Trufanova, N. S. ^{[1
]}

Fedosov, D. S. ^{[1
]}

机构：

[1] Tomsk State Univ Control Syst & Radielectron, 40 Lenina St, Tomsk 634050, Russia

来源：

CERAMICS INTERNATIONAL | 2024年 / 50卷 / 21期

关键词：

Thermal control coatings; PCB printing; Photostability; Aluminium oxide; Irradiation; Solar spectrum photons; OPTICAL-PROPERTIES; DEFECTS;

D O I：

10.1016/j.ceramint.2024.07.415

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The study examined the photo-stability of the thermal control coating (TCC), a class of "Optical Solar Reflectors", used in spacecrafts. This TCC is achieved by applying a layer of dielectric ceramic paste (DCP) onto the substrate using a printer (PCB printing). The DCP was prepared from filler (ground Al2O3 ceramic) and solvent with thickener (terpineol with ethylcellulose). The coating obtained by high-temperature firing (T = 850 C-& ocy;, 2 h) has high reflectivity in the solar range of the spectrum (0.2-2.5 mu m) with the solar absorptance (alpha(s)) of DCP equal to 0.143. It has high adhesion and photo-stability that exceeds photo-stability parameters of ZnO, TiO2, BaSO4, and CaSiO3 pigments. The developed coating can be recommended not only as a TCC for spacecrafts, but also as a protective or dielectric layer in manufacturing of printed circuit boards in various fields of technology, where increased resistance to solar radiation or its ultraviolet region is required.

引用

页码：41039 / 41043

页数：5

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