Name: Durability and Design Issues of Thermal/Environmental Barrier Coatings on Sic/Sic Ceramic Matrix Composites Under 1650 C Test Conditions (en Inglés)
SKU: 59704370
Price: 68165.00 COP
Availability: InStock
Author: Zhu, Dong-Ming ; Nasa Technical Reports Server (Ntrs) ; Et Al
ISBN: 9781287288169

portada Durability and Design Issues of Thermal/Environmental Barrier Coatings on Sic/Sic Ceramic Matrix Composites Under 1650 C Test Conditions (en Inglés)

Durability and Design Issues of Thermal/Environmental Barrier Coatings on Sic/Sic Ceramic Matrix Composites Under 1650 C Test Conditions (en Inglés)

Formato

Libro Físico

Autor

Nasa Technical Reports Server (Ntrs)

Dong-Ming Zhu

Editorial

Bibliogov

Idioma

Inglés

N° páginas

Encuadernación

Tapa Blanda

Dimensiones

24.6x18.9x0.1 cm

Peso

0.07 kg.

ISBN13

9781287288169

Categorías

Política y gobierno

Durability and Design Issues of Thermal/Environmental Barrier Coatings on Sic/Sic Ceramic Matrix Composites Under 1650 C Test Conditions (en Inglés)

Nasa Technical Reports Server (Ntrs) (Autor) · Dong-Ming Zhu (Autor) · Bibliogov · Tapa Blanda

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Reseña del libro "Durability and Design Issues of Thermal/Environmental Barrier Coatings on Sic/Sic Ceramic Matrix Composites Under 1650 C Test Conditions (en Inglés)"

Ceramic thermal/environmental barrier coatings for SiC-based ceramics will play an increasingly important role in future gas turbine engines because of their ability to effectively protect the engine components and further raise engine temperatures. However, the coating durability remains a major concern with the ever-increasing temperature requirements. Currently, advanced T/EBC systems, which typically include a high temperature capable zirconia- (or hahia-) based oxide top coat (thermal barrier) on a less temperature capable mullite/barium-strontium-aluminosilicate (BSAS)/Si inner coat (environmental barrier), are being developed and tested for higher temperature capability Sic combustor applications. In this paper, durability of several thermal/environmental barrier coating systems on SiC/SiC ceramic matrix composites was investigated under laser simulated engine thermal gradient cyclic, and 1650 C (3000 F) test conditions. The coating cracking and delamination processes were monitored and evaluated. The effects of temperature gradients and coating configurations on the ceramic coating crack initiation and propagation were analyzed using finite element analysis (FEA) models based on the observed failure mechanisms, in conjunction with mechanical testing results. The environmental effects on the coating durability will be discussed. The coating design approach will also be presented.