Thermodynamic Growth Mechanism of SiC/C Fibers

Abstract

Abstract: The silica sol was diluted with ethylene glycol as diluent to obtain different concentrations of silica sol solutions, which were used as raw materials for coating commercial carbon fibers. After surface modification, the carbon fibers were coated with silica sol solution and held at 1 600 ℃ for 30 min in the Ar atmosphere. The silica sol coating and carbon fibers underwent carbothermal reduction reaction to form SiC coating. The morphology and structure of the products were characterized, and the growth kinetics and high temperature diffusion mechanism of SiC coating were studied according to thermodynamic data. The calculation results show that the reaction process is diffusion controlled. The SiC/C fibers have better oxidation resistance at high temperature than the carbon fibers, which provides a useful idea and thermodynamic basis for the low-cost preparation of new ceramic fibers.

Key words: carbon fiber, coating preparation, thermodynamics, high temperature oxidation resistance, growth mechanism

CLC Number:

TB34

YANG Fanfan, ZHANG Yu, ZHANG Tao, WANG Jian, ZHAO Wei, LI Jinyu, WANG Kun, LIU Yuhao, HAO Huanmin, FAN Lijun, HUANG Xiaoxiao, WEN Guangwu. Thermodynamic Growth Mechanism of SiC/C Fibers[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(8): 2702-2712.

References

[1] 陈显明.碳纤维的性能、发展及应用研究进展[J].印染助剂,2015,32(7):1-4.
CHEN X M. Property, development and application research of carbon fiber[J]. Textile Auxiliaries, 2015, 32(7): 1-4 (in Chinese).
[2] HAN S, CHUNG D D L. Mechanical energy dissipation using carbon fiber polymer-matrix structural composites with filler incorporation[J]. Journal of Materials Science, 2012, 47(5): 2434-2453.
[3] PARK S J, DONNET J B. Anodic surface treatment on carbon fibers: determination of acid-base interaction parameter between two unidentical solid surfaces in a composite system[J]. Journal of Colloid and Interface Science, 1998, 206(1): 29-32.
[4] CHAE H G, NEWCOMB B A, GULGUNJE P V, et al. High strength and high modulus carbon fibers[J]. Carbon, 2015, 93: 81-87.
[5] WANG Z Y, YANG B, XIAN G, et al. An effective method to improve the interfacial shear strength in GF/CF reinforced epoxy composites characterized by fiber pull-out test[J]. Composites Communications, 2020, 19: 168-172.
[6] WANG Y X, HE H P, CAO Y, et al. Growth of crystalline SiC film free of cavities by heating PS/silica sol-gel coatings on Si(111) substrate[J]. Materials Letters, 2003, 57(5/6): 1179-1183.
[7] TIAN X L, HAN S, ZHUANG Q X, et al. Surface modification of staple carbon fiber by dopamine to reinforce natural latex composite[J]. Polymers, 2020, 12(4): 988.
[8] 于广,魏化震,李大勇,等.碳纤维上浆剂及其对复合材料界面性能的影响研究进展[J].工程塑料应用,2019,47(2):143-147.
YU G, WEI H Z, LI D Y, et al. Research progress of carbon fiber sizing agent and its effects on interface properties of composites[J]. Engineering Plastics Application, 2019, 47(2): 143-147 (in Chinese).
[9] SUN W Q, CAI X, WANG Z X, et al. A novel modification method via in situ reduction of AuAg bimetallic nanoparticles by polydopamine on carbon fiber microelectrode for H₂O₂ detection[J]. Microchemical Journal, 2020, 154: 104595.
[10] WANG Y, ZHANG S H, LUO D M, et al. Effect of chemically modified recycled carbon fiber composite on the mechanical properties of cementitious mortar[J]. Composites Part B: Engineering, 2019, 173: 106853.
[11] 王泽臣,林君,辛青,等.新型碳纤维海洋电场电极的制备及性能研究[J].仪器仪表学报,2019,40(9):52-60.
WANG Z C, LIN J, XIN Q, et al. Preparation and property study of a new carbon fiber electrodes for marine electric field detection[J]. Chinese Journal of Scientific Instrument, 2019, 40(9): 52-60 (in Chinese).
[12] 王淑霞,孟庆玉,肖之凤.炭/炭复合材料高温抗氧化涂层的研究进展[J].商业文化(上半月),2012(3):313.
WANG S X, MENG Q Y, XIAO Z F. Research progress of high temperature oxidation resistance coating of carbon/carbon composites[J]. Business Culture, 2012(3): 313 (in Chinese).
[13] WAN Y Z, WANG Y L, HUANG Y, et al. Effect of surface treatment of carbon fibers with gamma-ray radiation on mechanical performance of their composites[J]. Journal of Materials Science, 2005, 40(13): 3355-3359.
[14] LI S L, ZHANG C Q, FU J F, et al. Interfacial modification of carbon fiber by carbon nanotube gas-phase dispersion[J]. Composites Science and Technology, 2020, 195: 108196.
[15] 周晓东,吉法祥.碳纤维表面抗高温氧化SiC涂层的制备方法[J].现代化工,1997,17(12):42-43
ZHOU X D, JI F X. Preparation method of high temperature oxidation resistance SiC coating on carbon fiber surface[J]. Modern Chemical Industry, 1997, 17(12): 42-43 (in Chinese).
[16] 董志军,李轩科,袁观明,等.碳纤维表面陶瓷涂层的制备与应用研究[J].材料导报,2008,22(5):115-118.
DONG Z J, LI X K, YUAN G M, et al. Study on preparation and application of ceramic coatings on surface of carbon fibers[J]. Materials Review, 2008, 22(5): 115-118 (in Chinese).
[17] 付沙威,沈慧娟.碳纤维材料综述[J].通化师范学院学报,2012,33(12):21-22.
FU S W, SHEN H J. Review of carbon fiber materials[J]. Journal of Tonghua Normal University, 2012, 33(12): 21-22 (in Chinese).
[18] SUN L K, CHENG H F, CHU Z Y, et al. Preparation and properties of C/SiO₂ coaxial fibers[J]. Journal of Inorganic Materials, 2009, 24(2): 310-314.
[19] 黄剑锋,李贺军,熊信柏,等.炭/炭复合材料高温抗氧化涂层的研究进展[J].新型炭材料,2005,20(4):373-379.
HUANG J F, LI H J, XIONG X B, et al. Progress on the oxidation protective coating of carbon-carbon composites[J]. New Carbon Materials, 2005, 20(4): 373-379 (in Chinese).
[20] HU P, PAN R Q, DONG S, et al. Several millimeters long SiC-SiO_x nanowires synthesized by carbon black and silica sol[J]. Ceramics International, 2016, 42(2): 3625-3630.
[21] AHN S B, NGUYEN M D, BANG J W, et al. SiC-conversion coating from silica sol for improved oxidation resistance of carbon-fiber insulator in solar-cell ingot-growing crucibles[J]. Thin Solid Films, 2020, 694: 137748.
[22] 郭永春,曹畅,李建平,等.SiC高温氧化行为及Al基复合材料界面研究[J].热加工工艺,2016,45(8):131-134+138.
GUO Y C, CAO C, LI J P, et al. Research on high temperature oxidation behavior of SiC and interface of Al based composite[J]. Hot Working Technology, 2016, 45(8): 131-134+138 (in Chinese).
[23] 陈钢军,肖汉宁,高朋召.SiC涂层工艺对三维碳纤维编织物抗氧化性的影响[J].稀有金属材料与工程,2008,37(s1):78-81.
CHEN G J, XIAO H N, GAO P Z. Effects of SiC coating on the oxidation resistance of 3-D carbon fiber braids[J]. Rare Metal Materials and Engineering, 2008, 37(s1): 78-81 (in Chinese).
[24] 高朋召,王红洁,金志浩.原位反应法制备的碳化硅涂层/三维编织碳纤维的氧化性能研究[J].稀有金属材料与工程,2006,35(4):533-537.
GAO P Z, WANG H J, JIN Z H. Study of oxidation rasistant properties of SiC coatings/3-dimensional braided carbon fiber prepared by in situ reaction[J]. Rare Metal Materials and Engineering, 2006, 35(4): 533-537 (in Chinese).
[25] WANG Y J, PEI X L, LI H Y, et al. Preparation of SiC ceramic fiber from a photosensitive polycarbosilane[J]. Ceramics International, 2020, 46(18): 28300-28307.
[26] CHEN J P, SONG G, LIU Z, et al. Preparation of SiC whiskers using graphene and rice husk ash and its photocatalytic property[J]. Journal of Alloys and Compounds, 2020, 833: 155072.
[27] HU L, ZOU Y, LI C H, et al. Preparation of SiC nanowires on graphite paper with silicon powder[J]. Materials Letters, 2020, 269: 127444.
[28] 陈招科,龙莹,熊翔.含C-SiC-TaC复合界面C/C复合材料的拉曼光谱及纳米压痕研究[C]//第十六届全国复合材料学术会议论文集.长沙,2010:225-228.
CHEN Z K, LONG Y, XIONG X. Raman spectroscopy and nanoindentation of C/C composites containing C-SiC-TaC composites[C]//Proceedings of the 16th National Conference on Composites. Changsha, 2010: 225-228 (in Chinese).
[29] UL'YANOVD T M,史海生.碳纤维复合材料的热氧化稳定性[J].国外纺织技术(化纤、染整、环境保护分册),1996(5):1-3.
UL'YANOVD T M, SHI H S. Thermal oxidation stability of carbon fiber composites[J]. Textile Technology Overseas, 1996(5): 1-3 (in Chinese).
[30] LIMA E C, HOSSEINI-BANDEGHARAEI A, MORENO-PIRAJÁN J C, et al. A critical review of the estimation of the thermodynamic parameters on adsorption equilibria. Wrong use of equilibrium constant in the Van't Hoof equation for calculation of thermodynamic parameters of adsorption[J]. Journal of Molecular Liquids, 2019, 273: 425-434.
[31] KAO C C, YOUNG R J. A Raman spectroscopic investigation of heating effects and the deformation behaviour of epoxy/SWNT composites[J]. Composites Science and Technology, 2004, 64(15): 2291-2295.
[32] 梁骏吾,邓礼生,郑红军.Si-C相图的研究及碳对硅单晶质量的影响[J].稀有金属,1987,11(5):336-342.
LIANG J W, DENG L S, ZHENG H J. The study of Si-C phase diagram and the effect of carbon on the quality of silicon single crystal [J]. Chinese Journal of Rare Metals, 1987, 11(5): 336-342 (in Chinese).
[33] 马丽春.碳纤维表面化学修饰及其复合材料界面性能研究[D].哈尔滨:哈尔滨工业大学,2016.
MA L C. Chemical modification of carbon fiber surface and study of its composite interface performance[D]. Harbin: Harbin Institute of Technology, 2016 (in Chinese).