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CVD法制备B-C体系材料

, PP. 103-108

Keywords: CVD,沉积温度,B-C体系材料,微结构,XPS

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Abstract:

以BCl3-C3H6-H2为反应体系,采用化学气相沉积法(CVD)在炭纤维束上制备了B-C体系材料,研究了沉积温度的影响。利用SEM和XPS对BCx层的微结构、元素含量和化学结构进行表征,并结合化学反应过程,探讨了导致沉积产物形貌、成分和键结合状态的差异原因。结果表明,沉积温度对B-C层生长速率和断面形貌均有较大影响:900℃沉积时,沉积较慢,断面平整;1000℃时,沉积速度加快,断面呈显著片层状结构;B-C层内B元素原子含量随沉积温度升高而降低;沉积产物内B元素键结合状态有:B4C、B替代C、BC2O、BCO2和B2O3。沉积温度不仅影响B元素键结合状态,而且还影响各结合状态的含量。B4C在900℃时含量为0,在1000℃时达到最大值32.5at%;B替代C在900℃时含量最高,然后随温度升高而下降,在1050℃时其含量又有所升高。

References

[1]  张立同, 成来飞, 徐永东. 新型碳化硅陶瓷基复合材料的研究进展 [J]. 航空制造技术, 2003(1): 23 -32. Zhang Litong, Cheng Laifei, Xu Yongdong. Progress in research work of new CMC-SiC [J]. Aeronautical Manufacturing Technology, 2003(1): 23 -32.
[2]  James E S. Oxidation protection for carbon fiber composites [J]. Carbon, 1989, 27(5): 709 -715.
[3]  Smeacetto F, Savo M, Ferraris M. Oxidation protective multilayer coatings for carbon-carbon composites [J]. Carbon, 2002, 40(3): 583 -587.
[4]  Naslain R, Guette A, Rebillat F, et al. Boron-bearing species in ceramic matrix composites for long-term aerospace applications [J]. Journal of Solid State Chemistry, 2004, 177(2): 449 -456.
[5]  Naslain R. Design, preparation and properties of non-oxide CMCs for application in engines and nuclear reactors: An overview [J]. Composites Science and Technology, 2004, 64(2): 155 -170.
[6]  Naslain R, Pailler R, Bourrat X, et al. Synthesis of highly tailored ceramic matrix composites by pressure-pulsed CVI [J]. Solid State Ionics, 2001, 141: 541 -548.
[7]  马国佳, 张华芳, 武洪晨, 等. 硼离子注入对SiC-C/SiC复合材料抗氧化性影响 [J]. 复合材料学报, 2005, 22(3): 60 -63. Ma Guojia, Zhang Huafang, Wu Hongchen, et al. Influence of boron ion implantation on the oxidation behavior of SiC-C/SiC composites [J]. Acta Materiae Compositae Sinica, 2005, 22(3): 60 -63.
[8]  Jacques S, Guette A, Langlais F, et al. C(B) materials as interphase in SiC/SiC model microcomposites [J]. Journal of Materials Science, 1997, 32: 983 -988.
[9]  Fecko D L, Jones L E, Thrower P A. The formation and oxidation of BC3, a new graphite-like material [J]. Carbon, 1993, 31(4): 637 -644.
[10]  Sezer A O, Brand J I. Chemical vapor deposition of boron carbide [J]. Materials Science and Engineering B, 2001, 70: 191 -202.
[11]  Cermignani W, Paulson T E, Onneby C, et al. Synthesis and characterization of boron-doped carbons [J]. Carbon, 1995, 33(4): 367 -374.
[12]  Jacques S, Guette A, Bodrrat X, et al. LPCVD and characterization of boron-containing pyrocarbon materials [J]. Carbon, 1996, 34(9): 1135 -1143.
[13]  Charles T H, Linda E J, Carl C, et al. An investigation of vapor deposited boron rich carbon——A novel graphite-like material Ⅰ : The structure of BCx (C6B) thin films [J]. Carbon, 1999, 37(2): 221 -230.
[14]  Koh M, Nakajima T. Synthesis of well crystallized boron-carbon filament by chemical vapor deposition using a nickel catalyst [J]. Carbon, 1998, 36(7): 913 -920.
[15]  Kouvetakis J, Kaner R B, Sattler M L, et al. A novel graph-ite-like materials of composition BC3 and nitrogen-carbon graphites [J]. Journal of Chemistry Society, Chemistry Communication, 1986: 1758 -1759.
[16]  Olsson M, Sderberg S, Stridh B, et al. Chemical vapour deposition of boron carbides Ⅱ : Morphology and microstructure [J]. Thin Solid Films, 1989, 172(1): 95 -109.
[17]  Conde O, Slivestre A J, Oliveria J C. Influence of carbon content on the crystallographic structure of boron carbide films [J]. Surface and Coatings Technology, 2000, 125(1/3): 141 -146.
[18]  Tomas S M, Lackey W J, More K L. Chemical vapor deposition of B13C2 from BCl3-CH4-H2-argon mixtures [J]. Journal of American Ceramic Society, 1998, 81(12): 3077 -3086.
[19]  Vincent H, Vincent C, Berthet M P. Boron carbide formation from BCl3-CH4-H2 mixtures on carbon substrates and in a carbon-fibre reinforced Al composite [J]. Carbon, 1996, 34(9): 1041 -1055.

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