TY - JOUR
T1 - A low-temperature prepared composite coating to protect SiC-coated C/C composites against oxidation in a wide temperature range for long-life service
AU - Zhu, Xiaofei
AU - Zhang, Yulei
AU - Zhang, Jian
AU - Li, Tao
AU - Jung, In Ho
AU - Su, Yangyang
AU - Gai, Wenhan
N1 - Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/8
Y1 - 2023/8
N2 - To improve the oxidation resistance of carbon/carbon (C/C) composites in a wide temperature range (1173–1773 K), a composite coating containing rich B2O3 glass was prepared on SiC-coated C/C composites by slurry dipping-densifying at low temperature. Borosilicate and SiO2 glasses acted as oxygen barriers at low and medium-high temperatures, respectively. Besides, Hf-oxides (HfO2, HfSiO4) ceramic particles improved the thermal stability of the glass and enhanced the crack resistance of glass layer. Therefore, the composite coating can effectively protect C/C composites against oxidation for 403 h at 1173 K, 723 h at 1473 K and 403 h at 1773 K with the mass gain of 3.77 g·m−2, 21.41 g·m−2 and 0.42 g·m−2, respectively. After 50 times thermal cycles between room temperature and 1773 K, the mass gain of the coated sample was 3.95 g·m−2 and the mass retention rate was up to 98.19 % during the thermos-gravimetric test from room temperature to 1773 K.
AB - To improve the oxidation resistance of carbon/carbon (C/C) composites in a wide temperature range (1173–1773 K), a composite coating containing rich B2O3 glass was prepared on SiC-coated C/C composites by slurry dipping-densifying at low temperature. Borosilicate and SiO2 glasses acted as oxygen barriers at low and medium-high temperatures, respectively. Besides, Hf-oxides (HfO2, HfSiO4) ceramic particles improved the thermal stability of the glass and enhanced the crack resistance of glass layer. Therefore, the composite coating can effectively protect C/C composites against oxidation for 403 h at 1173 K, 723 h at 1473 K and 403 h at 1773 K with the mass gain of 3.77 g·m−2, 21.41 g·m−2 and 0.42 g·m−2, respectively. After 50 times thermal cycles between room temperature and 1773 K, the mass gain of the coated sample was 3.95 g·m−2 and the mass retention rate was up to 98.19 % during the thermos-gravimetric test from room temperature to 1773 K.
KW - Carbon/carbon composites
KW - Composite coating
KW - Long-life
KW - Low-temperature preparation
KW - Oxidation in a wide temperature range
UR - http://www.scopus.com/inward/record.url?scp=85151399240&partnerID=8YFLogxK
U2 - 10.1016/j.jeurceramsoc.2023.03.037
DO - 10.1016/j.jeurceramsoc.2023.03.037
M3 - 文章
AN - SCOPUS:85151399240
SN - 0955-2219
VL - 43
SP - 4349
EP - 4362
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
IS - 10
ER -