{"product_id":"durability-and-design-issues-of-nasa-technical-reports-server-ntrs-9781287288169","title":"Durability and Design Issues of Thermal\/Environmental Barrier Coatings on SiC\/SiC Ceramic Matrix Composites under 1650 C Test Conditions","description":"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.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Nasa Technical Reports Server (Ntrs),Dong-Ming Zhu\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1287288162\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781287288169\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Bibliogov\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 08\/06\/2013\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 26\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.15lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.69h x 7.44w x 0.05d","brand":"Nasa Technical Reports Server (Ntrs)","offers":[{"title":"Paperback","offer_id":47611327414527,"sku":"9781287288169","price":14.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_cc41578b-2d1d-4d05-9ed6-b2e465f2e8a4.jpg?v=1764513182","url":"https:\/\/www.whiterainbookhouse.com\/products\/durability-and-design-issues-of-nasa-technical-reports-server-ntrs-9781287288169","provider":"WR Book House","version":"1.0","type":"link"}