Thermal stability and optical properties of low emissivity multilayer coatings for energy-saving applications. Issue 6 (15th April 2020)

• Record Type: Journal Article
• Authors: Tsai, Du-Cheng; Chang, Zue-Chin; Kuo, Bing-Hau; Chen, Erh-Chiang; Huang, Yen-Lin; Hsieh, Tsung-Ju; Shieu, Fuh-Sheng
• Is Part Of: Ceramics international. Volume 46:Issue 6(2020)
• Page Start: 7991
• Page End: 7997
• Publication Date: 2020-04-15
• Subjects: Coating materials -- Thin films -- Vapor deposition -- Optical properties -- Transmission electron microscopy -- TEM; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2019.12.021
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: In this study, the deposition and characteristics of Si- and Ti-series multilayer coatings with respective glass/Si3 N4 /NiCr/Ag/NiCr/Si3 N4 and glass/TiO2 /ZnSnO3 /ZnO/Ag/NiCrOx /ZnSnO3 /Si3 N4 structures were investigated. Experimental analyses were performed, and the optical performance and thermal stability of the coatings were assessed. The as-deposited Si- and the Ti-series samples exhibited optimal shading coefficient of 0.49 and 0.57, respectively. Thermal annealing in air was performed to analyze the thermal stability and oxidation resistance of the samples. The Si- and Ti-series samples prevented the failure of low-emissivity properties at 700 and 600 °C, respectively. In addition to high transparency, the Si-series samples exhibited improved low-emissivity properties, reduced light pollution, and superior thermal stability compared to the Ti-series samples. The use of Si3 N4 and NiCr layers effectively prevented the oxidation and cracking of the Ag layer upon heat treatment. This study presents the characteristics of Si- and Ti-series samples for energy-saving building applications.