Premium
The Effect of Zirconium Carbide on Ablation of SiC ‐Coated Carbon/Silicon Carbide Composites Under an Oxy‐Acetylene Flame
Author(s) -
Yang Xiang,
Wei Li,
Song Wang,
ZhaoHui Chen
Publication year - 2013
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12043
Subject(s) - materials science , composite material , silicon carbide , zirconium carbide , coating , acetylene , zirconium , ablation , cubic zirconia , carbide , carbon fibers , chemical vapor deposition , composite number , ceramic , metallurgy , organic chemistry , nanotechnology , chemistry , engineering , aerospace engineering
To improve the ablation resistance of PIP ‐ C / SiC composites, zirconium carbide ( ZrC )‐modified SiC coating was prepared by chemical vapor deposition combined with slurry painting, then the ablation capability of the coated composites was tested under an oxy‐acetylene torch. Compared with the uncoated composites, linear and mass ablation rates of the coated composites decreased by 73.6% and 76.4%, respectively. The formation of zirconia from the oxidation of ZrC improved the ablation resistance of the composites because of anti‐oxidation performance, which absorbed heat from the flame and reduced erosive attack to C / SiC composites. Zirconia also acted as an accelerator for carbon fiber oxidation as it reacted with carbon during ablation. The heterogeneous reactions controlled the ablation of the composites.