为在炭/炭复合材料表面制备C/SiC浓度梯度高温抗氧化涂层，预先用料浆涂刷-高温处理工艺在其表面制备了预炭层.借助XRD、Raman和SEM等测试手段对所制备预炭层的组织结构和微观形貌进行了表征，讨论了不同的原料配比和炭化温度对预炭层结构的影响，并对预炭层与基体的结合性能进行了测定.研究结果表明：制备的预炭层结构致密，与基体具有较好的结合性能，其结合强度可达10.95MPa.不同的原料配比和炭化温度影响了炭层序态结构的形成，最终形成了不同结构的预炭层.
Pre-coated carbon layers on the surface of carbon/carbon composites were prepared firstly by slurry and high-temperature treatment for preparing the anti-oxidation coating with SiC concentration gradient. The micrographs and microstructures of the pre-coated carbon layer were characterized by SEM, Raman and XRD. The effects of different graphite content and carbonization temperature on the microstructure of pre-coated carbon layer were investigated. The bonding strength between the carbon layer and the C/C composites was also measured. The results show that the as-prepared carbon layer is dense and the bend strength reaches 10.5MPa. The structures of the pre-coated carbon layer are influenced by the graphite content and carbonization temperature, and the pre-coated carbon layers with different structures are obtained.
参考文献
| [1] | ］Buckley J D. Am. Cerm. Soc. Bull., 1988, 67(2): 364-368. ［2］李贺军. 新型炭材料, 2001, 16(2): 79-80. ［3］孙万昌, 李贺军, 白瑞成, 等(SUN Wan-Chang, et al）. 无机材料学报（Journal of Inorganic Materials）, 2005, 20(3): 671-676. ［4］Westwood M E, Webster J D, Day R J, et al. J. Mater.Sci., 1996, 31(6): 1389-1397. ［5］Strife J, Sheehan J. Ceramic. Bulletin., 1988, 67(2): 369-374. ［6］Fu Q G, Li H J, Shi X H, et al. Scripta materialia, 2005, 52(9): 923-927. ［7］王 标, 李克智, 李贺军, 等（Wang Biao, et al）. 无机材料学报（Journal of Inorganic Materials）, 2007, 22(4): 737-741. ［8］牛晓滨，廖 源，常 超，等（NIU Xiao-Bin, et al）.无机材料学报（Journal of Inorganic Materials）,2004, 19(2): 397-402. ［9］Huang J F, Zeng X R, Li H J, et al. Carbon, 2004, 42(8-9):1517-1521. ［10］曾燮榕, 李贺军, 杨 峥, 等. 金属热处理学报, 2000, 21(2): 64 -67. ［11］Ueda T, Morimoto T, Kumagai H, et al. Carbon, 1995, 33(1): 73-78. ［12］Zhang Y L, Li H J, Fu Q G, et al. Surf.Coat. Technol., 2006, 201(6): 3491-3495. ［13］Wu T M, Won K H, Wei W C. Surf.Coat. Technol., 1996, 78(1): 64-71. ［14］Smeacetto F, Ferraris M, Salvo M. Carbon, 2003, 41(11):2105-2111. ［15］Zhang Y L, Li H J, Fu Q G, et al. Carbon, 2008, 46 (1): 179-182. ［16］李崇俊, 马伯信, 金志浩. 新型炭材料 , 2001, 16(1): 19-24. ［17］汪树军, 刘庆国. 北京科技大学学报, 2000, 22(6): 889-892. ［18］王君林, 关振中. 材料科学与工艺, 1995, 3(4): 39-43. ［19］Li X K, Liu L, Shen S D, et al. New Carbon Materials., 2000, 15(3): 52-54. |
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