Tohoku University Technology:Non-contact & non-destructive inspection method for thermal barrier coating: T05-286
Degradation evaluation of ceramic thermal barrier coating for gas turbine thermal power plant by using few GHz microwave
This invention is about a non-contact & non-destructive inspection method for evaluating the degradation with the age of thermal barrier coating on heat resistant metallic material by using microwave. The formation and growth of thermally grown oxide (TGO) which is formed as a result of aging, is evaluated for ceramic coated element used in gas turbine thermal power generation, and the interfacial strength is indirectly evaluated. YSZ (top coat) is used in ceramic coating for gas turbine element, and MCrAlY alloy layer (bond coat) is inserted between the YSZ and the substrate (Ni-based superalloy) to increase delamination resistance. This element is known to form TGO on the bond coat as the material deteriorates, so the element life evaluation is possible by evaluating TGO.
- Company：Tohoku Techno Arch Co., Ltd.
- Price：Other
