| 专利名称： | Ceramic Thermal Barrier Coating |
| 公开（告）号： | |
| 公开（公告）日： | 2008-10-02 00:00:00 |
| 申请（专利）号： | US2008241560(A1) |
| 申请日： | 2008-01-04 00:00:00 |
| 发明（设计）人： | |
| (申请)专利权（人）： | NAZMY MOHAMED YOUSSEF (CH) |
| 内容： | A ceramic thermal barrier coating( 8 ) for coating the surface( 7 ) of a component( 1 ) of a nickel-based superalloy, and an adhesive coating optionally applied thereon( 6 ), preferably a gas turbine component, includes zirconium oxide(ZrO2) stabilized by yttrium oxide(Y2O3) and production-related impurities, as well as at least one high-temperature and oxidation resistant intermetallic compound, for example NiAl, YRh, ErIr, the volume fraction of which decreases continuously or in stages as the distance from the surface( 7 ) of the component( 1 )/the adhesive coating( 6 ) increases. Advantageously, a less steep stress gradient is produced by gradually varying the composition of the thermal barrier coating( 8 ).;This leads to an increased expansion tolerance of the thermal barrier coating( 8 ) and thus, on the one hand, to an increased lifetime under thermal loading(no flaking) and, on the other hand, the possibility of applying thicker thermal barrier coatings( 8 ), and therefore of using the coated components( 1 ) at higher temperatures. |
发布日期：2009-08-07 03:56:00