| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1661145 | Surface and Coatings Technology | 2007 | 5 Pages |
Abstract
Thermal barrier coatings (TBCs) with nano-multilayer structure were investigated by thermal shock test. The change of insulation effect during thermal shock test was studied by in-situ temperature monitor with a thermal couple set into the substrate. Microstructure and electrical properties of TBCs were characterized by SEM and Impedance Spectroscopy, respectively. Initial increase in insulation effect was observed and related to the formation and growth of perpendicular microcracks in top coat and transversal microcracks in TGO. With thermal shock, the insulation effect decreased due to the further growth of microcracks in top coat and TGO which induced the failure of TBCs.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Chunxia Zhang, Chungen Zhou, Hui Peng, Shengkai Gong, Huibin Xu,