Residual stress measurement of Sic fiber/YSZ composite thermal barrier coating by micro-Raman spectroscopy
- Resource Type
- Article
- Authors
- Ma, Rongbin; Tan, Ziyi; Kang, Genglei
- Source
- IOP Conference Series: Materials Science and Engineering; August 2018, Vol. 397 Issue: 1 p012019-012019, 1p
- Subject
- Language
- ISSN
- 17578981; 1757899X
Residual stress distribution in Sic fiber/YSZ composite thermal barrier coating (TBC) on a stainless substrate has been measured by micro-Raman spectroscopy. Stress-spectroscopic coefficient was calibrated on a independent TBC layer. The coefficient for all TBC system is S=33.92cm-1Gpa-1. The stress measurement along the TBC thickness shows compressive stress distribution is decrease progressively from substrate/top coat interface to TBC surface. And the fiber can effectively relaxing the residual stress of composite coating.