کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1659012 | 1008367 | 2010 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Overview on advanced thermal barrier coatings Overview on advanced thermal barrier coatings](/preview/png/1659012.png)
During the last decade a number of ceramic materials, mostly oxides have been suggested as new thermal barrier coating (TBC) materials. These new compositions have to compete with the state-of-the-art TBC material yttria stabilized zirconia (YSZ) which turns out to be difficult due to its unique properties. On the other hand YSZ has certain shortcomings especially its limited temperature capability above 1200 °C which necessitates its substitution in advanced gas turbines.In the paper an overview is tried on different new materials covering especially doped zirconia, pyrochlores, perovskites, and aluminates. Literature results and also results from our own investigations will be presented and compared to the requirements. Finally, the double-layer concept, a method to overcome the limited toughness of new TBC materials, will be discussed.
Journal: Surface and Coatings Technology - Volume 205, Issue 4, 15 November 2010, Pages 938–942