| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5460676 | Journal of Alloys and Compounds | 2017 | 32 Pages |
Abstract
A brand new HfB2-SiC-MoSi2 coating was fabricated to protect carbon/carbon (C/C) composites with inner SiC coating from oxidation, which was prepared by in-situ synthesis. In this paper, the C/C substrate with the protection of the HfB2-SiC-MoSi2/SiC coating could resist oxidation in 1773Â K air for 408Â h. The double coating also presented expected oxidation protection performance at dynamic oxidation environment. In the test process, the surface coating was oxidized to form a self-sealing silicate glass layer containing HfO2 and HfSiO4, which could hinder crack propagation in coating.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Peipei Wang, Hejun Li, Xuanru Ren, Ruimei Yuan, Xianghui Hou, Yulei Zhang,