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Thermal barrier coating by polymer-derived ceramic technique for application in exhaust systems

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Thermal barrier coating by polymer-derived ceramic technique for application in exhaust systems (Volume 12) (English shop)

Gilvan Barroso (Author)


Table of Contents, PDF (130 KB)
Extract, PDF (460 KB)

ISBN-13 (Hard Copy) 9783736998322
ISBN-13 (eBook) 9783736988323
Language English
Page Number 166
Lamination of Cover matt
Edition 1.
Book Series Schriftenreihe Keramische Werkstoffe
Volume 12
Publication Place Göttingen
Publication Date 2018-09-04
General Categorization Dissertation
Departments Engineering
Keywords thermal barrier coatings, polymer-derived ceramics, ceramic coatings, polysilazanes, automotive exhaust systems, thermal conductivity, yttria-stabilized zirconia, zirconium disilicide, fillers

Thermal barrier coatings (TBCs) are ceramic coating systems developed to reduce the heat transfer from a hot medium to the coated parts. This technology can be used in automotive exhaust systems to reduce the heat transfer from the exhaust gases to the metal pipes. As a result, catalytic converters can reach the ideal temperature for the conversion of gases more quickly, reducing emissions. In order to be effective, coatings must be applied to the inside of pipes. However, conventional techniques for the preparation of ceramic coatings are not suitable for the deposition of coatings inside of long pipes with small diameter, or are too expensive. In this work, a TBC system was developed using the polymer-derived ceramics (PDC) technique. In this method, ceramic coatings are obtained by the thermal conversion of preceramic polymers into ceramics, after deposition of the coatings by simple lacquer techniques. Fillers are used to tailor the microstructure and the properties of the coatings. This book contains a review of the literature on PDC coatings, the procedures for the preparation of the TBCs, as well as their properties.