Item Infomation


Title: 
Mullite photonic glasses with exceptional thermal stability for novel reflective thermal barrier coatings
Authors: 
Gomez-Gomez, Alberto
Gomes, Diego Ribas
Winhard, Benedikt F.
Issue Date: 
2023
Publisher: 
Springer
Abstract: 
Thermal barrier coatings are essential materials systems for insulating and protecting substrates exposed to high temperatures. In such systems, the heat transfer has three possible paths: conduction, convection and irradiation. The higher the operating temperature, the more important it is to control or protect against the radiative component, since the radiative heat flux becomes non-negligible. The radiation can be controlled by the use of ceramic-based photonic nanostructures, namely photonic crystals and photonic glasses, creating so-called reflective thermal barrier coatings. In this work, mullite inverse photonic glasses (PhG) have been produced by thermally induced reaction on sol–gel-based silica structures coated with nanometric films of Al2O3 by atomic layer deposition. The conversion to mullite was carried out following a two-stage heat-treatment.
Description: 
CC-BY
URI: 
https://link.springer.com/article/10.1007/s10853-023-08844-2
https://dlib.phenikaa-uni.edu.vn/handle/PNK/8934
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