Journal
CORROSION SCIENCE
Volume 161, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2019.108181
Keywords
C-f/ZrB2-SiC; Thermal shock resistance; Oxidation; Protective layer
Funding
- National Natural Science Foundation of China [51872059, 51772061, 51902067, 11572353]
- National Fund for Distinguished Young Scholars [51525201]
- China Postdoctoral Science Foundation [2019M651282]
- Major State Basic Search Program [2014CB46505]
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The C-f/ZrB2-SiC composite was fabricated by vibration-assisted slurry impregnation and low-temperature hot pressing. The C-f/ZrB2-SiC composite exhibited an excellent thermal shock resistance and oxidation resistance with a dense SiO2-rich glassy layer exposing at 1500 degrees C/1 h condition for static oxidation. Moreover, the high temperature ablation resistance was investigated with an oxyacetylene ablative testing at temperature 1800 degrees C for 1000s. The mass loss rate and line loss rate were 7.32x10(-4) mg/mm(2).s and -1.70x10(-4) mm/s, respectively. The enriched silica glass layer embedded with a small amount of zirconia particles was contributed mainly to the excellent ablation resistance of C-f/ZrB2-SiC composite.
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